Windows Analysis Report
server.exe

Overview

General Information

Sample Name: server.exe
Analysis ID: 830549
MD5: 2ca14653601a8e9adb830e183c5874d7
SHA1: 0e75f94eb23c8aac9b3301951d2df8639304a165
SHA256: a9934cc506821e82237fdaf471f845e1e027b37841d635f971b8df6853e9d7f9
Tags: agenziaentrateexegoziisfbmefmiseursnif
Infos:

Detection

Ursnif
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Multi AV Scanner detection for submitted file
Detected unpacking (changes PE section rights)
Malicious sample detected (through community Yara rule)
Detected unpacking (overwrites its own PE header)
Yara detected Ursnif
Found evasive API chain (may stop execution after checking system information)
Writes or reads registry keys via WMI
Writes registry values via WMI
Found API chain indicative of debugger detection
Machine Learning detection for sample
Creates a DirectInput object (often for capturing keystrokes)
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
May sleep (evasive loops) to hinder dynamic analysis
Found evasive API chain checking for process token information
Uses code obfuscation techniques (call, push, ret)
PE file contains sections with non-standard names
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Contains functionality to call native functions
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Contains functionality to dynamically determine API calls
Uses Microsoft's Enhanced Cryptographic Provider

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: server.exe ReversingLabs: Detection: 35%
Source: server.exe Virustotal: Detection: 42% Perma Link
Machine Learning detection for sample
Source: server.exe Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 0.2.server.exe.400000.0.unpack Avira: Label: TR/Crypt.XPACK.Gen7
Source: 00000000.00000002.517428823.0000000000500000.00000040.00001000.00020000.00000000.sdmp Malware Configuration Extractor: Ursnif {"RSA Public Key": "ScCjtIu/chsReaToemavuPsGfYIczuvCBclhySG8/AhfUJMnvau4hmaBPIAXScUh9/secJMcCpqd5yeayd2fJdEc3ETZJfeY55SskXGIyxmn6sJL8WH2YF95GitV+tnd52epRBd8/snxdFtGg4Pgf9kxQsW/ySpD96hQxlGzGgDApS0E54E54SLEBTqihX3FWN2//mDaDIJuoFz7lt0whvCg/8gXPBf/s2nkXoRwyyqXguvwDcw9IZEu1NT1qqIwpXL9DGldaMvwfXTGOLIkQX35RsJJDpP1V5Mcgc+c1nBRPKqGQz+NUtKDBiyp0RXMK3jDdMGWvimLl80kvMkvSd8fQXtWRcZ7DCuQwrQxkXo=", "c2_domain": ["checklist.skype.com", "62.173.142.81", "193.233.175.113", "109.248.11.184", "212.109.218.26", "185.68.93.7"], "botnet": "7715", "server": "50", "serpent_key": "xeaLJj1BwSDpjIfH", "sleep_time": "1", "CONF_TIMEOUT": "20", "SetWaitableTimer_value": "0"}
Uses Microsoft's Enhanced Cryptographic Provider
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02221508 CryptAcquireContextW,memcpy,CryptImportKey,CryptSetKeyParam,memcpy,CryptEncrypt,GetLastError,GetLastError,CryptDestroyKey,GetLastError,CryptReleaseContext,GetLastError, 0_2_02221508

Compliance
barindex
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\server.exe Unpacked PE file: 0.2.server.exe.400000.0.unpack
Uses 32bit PE files
Source: server.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\server.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Source: unknown DNS traffic detected: query: checklist.skype.com replaycode: Name error (3)
Source: server.exe, 00000000.00000002.517572455.0000000000768000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://checklist.skype.com/
Source: server.exe, 00000000.00000002.517572455.0000000000773000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://checklist.skype.com/drew/8GsEYWG5R7vgd6ovGci/nrUBbPIi4nn3B9s17IICy8/dABAhwF5Li84O/L9tQ_2Fw/
Source: server.exe, 00000000.00000002.517572455.0000000000768000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://checklist.skype.com/drew/8GsEYWG5R7vgd6ovGci/nrUBbPIi4nn3B9s17IICy8/dABAhwF5Li84O/L9tQ_2Fw/xJ
Source: unknown DNS traffic detected: queries for: checklist.skype.com

Key, Mouse, Clipboard, Microphone and Screen Capturing
barindex
Yara detected Ursnif
Source: Yara match File source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR
Creates a DirectInput object (often for capturing keystrokes)
Source: server.exe, 00000000.00000002.517494434.000000000070A000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

E-Banking Fraud
barindex
Yara detected Ursnif
Source: Yara match File source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02221508 CryptAcquireContextW,memcpy,CryptImportKey,CryptSetKeyParam,memcpy,CryptEncrypt,GetLastError,GetLastError,CryptDestroyKey,GetLastError,CryptReleaseContext,GetLastError, 0_2_02221508

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 00000000.00000002.517428823.0000000000500000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: 00000000.00000002.517545518.0000000000716000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown
Source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR Matched rule: Windows_Trojan_Gozi_fd494041 Author: unknown
Source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR Matched rule: Windows_Trojan_Gozi_261f5ac5 Author: unknown
Writes or reads registry keys via WMI
Source: C:\Users\user\Desktop\server.exe WMI Queries: IWbemServices::ExecMethod - root\default : StdRegProv::GetStringValue
Source: C:\Users\user\Desktop\server.exe WMI Queries: IWbemServices::ExecMethod - root\default : StdRegProv::SetDWORDValue
Source: C:\Users\user\Desktop\server.exe WMI Queries: IWbemServices::ExecMethod - root\default : StdRegProv::SetBinaryValue
Source: C:\Users\user\Desktop\server.exe WMI Queries: IWbemServices::ExecMethod - root\default : StdRegProv::SetStringValue
Writes registry values via WMI
Source: C:\Users\user\Desktop\server.exe WMI Registry write: IWbemServices::ExecMethod - root\default : StdRegProv::SetDWORDValue
Source: C:\Users\user\Desktop\server.exe WMI Registry write: IWbemServices::ExecMethod - root\default : StdRegProv::SetBinaryValue
Source: C:\Users\user\Desktop\server.exe WMI Registry write: IWbemServices::ExecMethod - root\default : StdRegProv::SetStringValue
Uses 32bit PE files
Source: server.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: 00000000.00000002.517428823.0000000000500000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: 00000000.00000002.517545518.0000000000716000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12
Source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR Matched rule: Windows_Trojan_Gozi_fd494041 reference_sample = 0a1c1557bdb8c1b99e2b764fc6b21a07e33dc777b492a25a55cbd8737031e237, os = windows, severity = x86, creation_date = 2021-03-22, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = faabcdfb3402a5951ff1fde4f994dcb00ec9a71fb815b80dc1da9b577bf92ec2, id = fd494041-3fe8-4ffa-9ab8-6798032f1d66, last_modified = 2021-08-23
Source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR Matched rule: Windows_Trojan_Gozi_261f5ac5 reference_sample = 31835c6350177eff88265e81335a50fcbe0dc46771bf031c836947851dcebb4f, os = windows, severity = x86, creation_date = 2019-08-02, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Gozi, fingerprint = cbc8fec8fbaa809cfc7da7db72aeda43d4270f907e675016cbbc2e28e7b8553c, id = 261f5ac5-7800-4580-ac37-80b71c47c270, last_modified = 2021-08-23
Detected potential crypto function
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_022216DF 0_2_022216DF
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0222832C 0_2_0222832C
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02221D8A 0_2_02221D8A
Contains functionality to call native functions
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0040110B GetProcAddress,NtCreateSection,memset, 0_2_0040110B
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00401459 NtMapViewOfSection, 0_2_00401459
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_004019F1 NtQuerySystemInformation,Sleep,GetLocaleInfoA,GetSystemDefaultUILanguage,VerLanguageNameA,GetLongPathNameW,GetLongPathNameW,GetLongPathNameW,CreateThread,QueueUserAPC,CloseHandle,GetLastError,TerminateThread,CloseHandle,SetLastError,WaitForSingleObject,GetExitCodeThread,CloseHandle,GetLastError,GetLastError, 0_2_004019F1
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0222421F NtOpenProcess,NtOpenProcessToken,NtQueryInformationToken,NtQueryInformationToken,NtQueryInformationToken,memcpy,NtClose,NtClose, 0_2_0222421F
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02228551 NtQueryVirtualMemory, 0_2_02228551
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00501C58 NtQuerySystemInformation,Sleep,GetLocaleInfoA,GetSystemDefaultUILanguage,VerLanguageNameA,CreateThread,QueueUserAPC,GetLastError,TerminateThread,SetLastError,WaitForSingleObject,GetExitCodeThread,GetLastError,GetLastError, 0_2_00501C58
Source: server.exe ReversingLabs: Detection: 35%
Source: server.exe Virustotal: Detection: 42%
Source: server.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\server.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_022230D5 CreateToolhelp32Snapshot,Process32First,Process32Next,CloseHandle, 0_2_022230D5
Source: C:\Users\user\Desktop\server.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4590F811-1D3A-11D0-891F-00AA004B2E24}\InprocServer32 Jump to behavior
Source: classification engine Classification label: mal100.troj.evad.winEXE@1/0@1/0
Source: C:\Users\user\Desktop\server.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\server.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\server.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior

Data Obfuscation
barindex
Detected unpacking (changes PE section rights)
Source: C:\Users\user\Desktop\server.exe Unpacked PE file: 0.2.server.exe.400000.0.unpack .text:ER;.data:W;.pozipiw:W;.rsrc:R; vs .text:ER;.rdata:R;.data:W;.bss:W;.rsrc:R;.reloc:R;
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\server.exe Unpacked PE file: 0.2.server.exe.400000.0.unpack
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02227F30 push ecx; ret 0_2_02227F39
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0222831B push ecx; ret 0_2_0222832B
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00723408 push ds; ret 0_2_00723409
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0071D95D push 8B8751D0h; retf 0_2_0071D962
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00722D2A push ebp; ret 0_2_00722D2F
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00723783 push ds; ret 0_2_00723791
PE file contains sections with non-standard names
Source: server.exe Static PE information: section name: .pozipiw
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00401000 LoadLibraryA,GetProcAddress, 0_2_00401000

Hooking and other Techniques for Hiding and Protection
barindex
Yara detected Ursnif
Source: Yara match File source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR
Source: C:\Users\user\Desktop\server.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\server.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Found evasive API chain (may stop execution after checking system information)
Source: C:\Users\user\Desktop\server.exe Evasive API call chain: NtQuerySystemInformation,DecisionNodes,Sleep
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\server.exe TID: 1212 Thread sleep count: 40 > 30 Jump to behavior
Source: C:\Users\user\Desktop\server.exe TID: 1212 Thread sleep count: 32 > 30 Jump to behavior
Found evasive API chain checking for process token information
Source: C:\Users\user\Desktop\server.exe Check user administrative privileges: GetTokenInformation,DecisionNodes
Source: C:\Users\user\Desktop\server.exe API call chain: ExitProcess graph end node
Source: server.exe, 00000000.00000002.517572455.0000000000729000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll

Anti Debugging
barindex
Found API chain indicative of debugger detection
Source: C:\Users\user\Desktop\server.exe Debugger detection routine: NtQueryInformationProcess or NtQuerySystemInformation, DecisionNodes, ExitProcess or Sleep
Contains functionality to read the PEB
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0050092B mov eax, dword ptr fs:[00000030h] 0_2_0050092B
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00500D90 mov eax, dword ptr fs:[00000030h] 0_2_00500D90
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_0071AE32 push dword ptr fs:[00000030h] 0_2_0071AE32
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00401000 LoadLibraryA,GetProcAddress, 0_2_00401000
Contains functionality to query locales information (e.g. system language)
Source: C:\Users\user\Desktop\server.exe Code function: NtQuerySystemInformation,Sleep,GetLocaleInfoA,GetSystemDefaultUILanguage,VerLanguageNameA,GetLongPathNameW,GetLongPathNameW,GetLongPathNameW,CreateThread,QueueUserAPC,CloseHandle,GetLastError,TerminateThread,CloseHandle,SetLastError,WaitForSingleObject,GetExitCodeThread,CloseHandle,GetLastError,GetLastError, 0_2_004019F1
Source: C:\Users\user\Desktop\server.exe Code function: NtQuerySystemInformation,Sleep,GetLocaleInfoA,GetSystemDefaultUILanguage,VerLanguageNameA,CreateThread,QueueUserAPC,GetLastError,TerminateThread,SetLastError,WaitForSingleObject,GetExitCodeThread,GetLastError,GetLastError, 0_2_00501C58
Contains functionality to query CPU information (cpuid)
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02223BD3 cpuid 0_2_02223BD3
Source: C:\Users\user\Desktop\server.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_00401D68 CreateEventA,GetVersion,GetCurrentProcessId,OpenProcess,GetLastError, 0_2_00401D68
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_004015B0 GetSystemTimeAsFileTime,CreateFileMappingW,GetLastError,GetLastError,MapViewOfFile,GetLastError,CloseHandle,GetLastError, 0_2_004015B0
Source: C:\Users\user\Desktop\server.exe Code function: 0_2_02223BD3 RtlAllocateHeap,GetUserNameW,RtlAllocateHeap,GetUserNameW,HeapFree,GetComputerNameW,GetComputerNameW,RtlAllocateHeap,GetComputerNameW,HeapFree, 0_2_02223BD3

Stealing of Sensitive Information
barindex
Yara detected Ursnif
Source: Yara match File source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Ursnif
Source: Yara match File source: 00000000.00000003.475185629.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475209392.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475243148.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475160545.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.517888013.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475262264.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475071788.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475293261.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.475126173.0000000002BD8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: server.exe PID: 6052, type: MEMORYSTR
windows-stand
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 830549 Sample: server.exe Startdate: 20/03/2023 Architecture: WINDOWS Score: 100 11 Malicious sample detected (through community Yara rule) 2->11 13 Multi AV Scanner detection for submitted file 2->13 15 Yara detected  Ursnif 2->15 17 Machine Learning detection for sample 2->17 5 server.exe 6 2->5         started        process3 dnsIp4 9 checklist.skype.com 5->9 19 Detected unpacking (changes PE section rights) 5->19 21 Detected unpacking (overwrites its own PE header) 5->21 23 Found evasive API chain (may stop execution after checking system information) 5->23 25 3 other signatures 5->25 signatures5
⊘No contacted IP infos

Contacted Domains

Name IP Active
checklist.skype.com unknown unknown