Joe Sandbox Cloud Basic Analysis Report

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Windows Analysis Report
jYzNEOocXJ.exe

Overview

General Information

Sample Name:jYzNEOocXJ.exe (renamed file extension from exe to dll)
Analysis ID:745049
MD5:c0f0068b25ecdd1a5cd3c6d38143b15a
SHA1:d8d3ca380c13761b9f78407caa626000d150c289
SHA256:fbfd3ffa1c73410da17ad4f695976a4667b6e47361fbc459e1d3c60973cc8bf6
Tags:dllexe
Infos:

Detection

Emotet
Score:84
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Snort IDS alert for network traffic
Creates an autostart registry key pointing to binary in C:\Windows
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Queries the volume information (name, serial number etc) of a device
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Deletes files inside the Windows folder
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Creates files inside the system directory
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Tries to load missing DLLs
Drops PE files to the windows directory (C:\Windows)
Connects to several IPs in different countries
Registers a DLL
Found large amount of non-executed APIs
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)

Classification

Process Tree

  • System is w10x64
  • loaddll64.exe (PID: 5088 cmdline: loaddll64.exe "C:\Users\user\Desktop\jYzNEOocXJ.dll" MD5: C676FC0263EDD17D4CE7D644B8F3FCD6)
    • conhost.exe (PID: 2244 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • cmd.exe (PID: 1172 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\jYzNEOocXJ.dll",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 5092 cmdline: rundll32.exe "C:\Users\user\Desktop\jYzNEOocXJ.dll",#1 MD5: 73C519F050C20580F8A62C849D49215A)
        • regsvr32.exe (PID: 2188 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\SlbehL\VFRyzv.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
        • conhost.exe (PID: 5844 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • regsvr32.exe (PID: 4648 cmdline: regsvr32.exe /s C:\Users\user\Desktop\jYzNEOocXJ.dll MD5: D78B75FC68247E8A63ACBA846182740E)
      • regsvr32.exe (PID: 1240 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\IGITGYfeMHnijDRfh\YUPGSgcOA.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • rundll32.exe (PID: 4352 cmdline: rundll32.exe C:\Users\user\Desktop\jYzNEOocXJ.dll,DllRegisterServer MD5: 73C519F050C20580F8A62C849D49215A)
      • regsvr32.exe (PID: 1308 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\MTGBtRnw\JNSgzavrCOAZ.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • regsvr32.exe (PID: 1128 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\NiLEPseQYt\GYKBfnsNfiUmNl.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
  • regsvr32.exe (PID: 3100 cmdline: C:\Windows\system32\regsvr32.exe" "C:\Windows\system32\SlbehL\VFRyzv.dll MD5: D78B75FC68247E8A63ACBA846182740E)
    • regsvr32.exe (PID: 5912 cmdline: C:\Windows\system32\regsvr32.exe "C:\Users\user\AppData\Local\DjbPAkHwGwShv\clUEIwbdI.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
  • cleanup

Malware Configuration

Threatname: Emotet

{"C2 list": ["172.105.115.71:8080", "218.38.121.17:443", "186.250.48.5:443", "103.71.99.57:8080", "85.214.67.203:8080", "85.25.120.45:8080", "139.196.72.155:8080", "103.85.95.4:8080", "198.199.70.22:8080", "209.239.112.82:8080", "78.47.204.80:443", "36.67.23.59:443", "104.244.79.94:443", "62.171.178.147:8080", "195.77.239.39:8080", "103.56.149.105:8080", "80.211.107.116:8080", "93.104.209.107:8080", "174.138.33.49:7080", "202.28.34.99:8080", "178.62.112.199:8080", "114.79.130.68:443", "118.98.72.86:443", "103.41.204.169:8080", "178.238.225.252:8080", "83.229.80.93:8080", "46.101.98.60:8080", "82.98.180.154:7080", "87.106.97.83:7080", "196.44.98.190:8080", "139.59.80.108:8080", "103.224.241.74:8080", "103.254.12.236:7080", "185.148.169.10:8080", "165.22.254.236:8080", "37.44.244.177:8080", "54.37.228.122:443", "51.75.33.122:443", "128.199.217.206:443", "188.165.79.151:443", "210.57.209.142:8080", "160.16.143.191:8080", "175.126.176.79:8080", "202.134.4.210:7080", "103.126.216.86:443", "190.145.8.4:443", "128.199.242.164:8080", "64.227.55.231:8080"]}

Yara Signatures

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000000C.00000002.459814511.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
    00000006.00000002.818802646.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
      00000000.00000002.313230832.000002A925490000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
        00000003.00000002.310823174.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
          00000004.00000002.308503286.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
            Click to see the 7 entries

            Unpacked PEs

            SourceRuleDescriptionAuthorStrings
            4.2.rundll32.exe.1e780100000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
              6.2.regsvr32.exe.b00000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                3.2.regsvr32.exe.1f70000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                  3.2.regsvr32.exe.1f70000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                    0.2.loaddll64.exe.2a925490000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                      Click to see the 7 entries

                      Sigma Signatures

                      ⊘No Sigma rule has matched

                      Snort Signatures

                      Timestamp:192.168.2.4115.178.55.2249695802404304 11/13/22-18:23:45.534335
                      SID:2404304
                      Source Port:49695
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected

                      Joe Sandbox Signatures

                      Click to jump to signature section

                      Show All Signature Results

                      AV Detection

                      barindex
                      Multi AV Scanner detection for submitted file
                      Source: jYzNEOocXJ.dllVirustotal: Detection: 43%Perma Link
                      Source: 00000006.00000002.818004061.0000000000B48000.00000004.00000020.00020000.00000000.sdmpMalware Configuration Extractor: Emotet {"C2 list": ["172.105.115.71:8080", "218.38.121.17:443", "186.250.48.5:443", "103.71.99.57:8080", "85.214.67.203:8080", "85.25.120.45:8080", "139.196.72.155:8080", "103.85.95.4:8080", "198.199.70.22:8080", "209.239.112.82:8080", "78.47.204.80:443", "36.67.23.59:443", "104.244.79.94:443", "62.171.178.147:8080", "195.77.239.39:8080", "103.56.149.105:8080", "80.211.107.116:8080", "93.104.209.107:8080", "174.138.33.49:7080", "202.28.34.99:8080", "178.62.112.199:8080", "114.79.130.68:443", "118.98.72.86:443", "103.41.204.169:8080", "178.238.225.252:8080", "83.229.80.93:8080", "46.101.98.60:8080", "82.98.180.154:7080", "87.106.97.83:7080", "196.44.98.190:8080", "139.59.80.108:8080", "103.224.241.74:8080", "103.254.12.236:7080", "185.148.169.10:8080", "165.22.254.236:8080", "37.44.244.177:8080", "54.37.228.122:443", "51.75.33.122:443", "128.199.217.206:443", "188.165.79.151:443", "210.57.209.142:8080", "160.16.143.191:8080", "175.126.176.79:8080", "202.134.4.210:7080", "103.126.216.86:443", "190.145.8.4:443", "128.199.242.164:8080", "64.227.55.231:8080"]}
                      Source: C:\Windows\System32\loaddll64.exeCode function: 0_2_00007FF875EB9410 CryptStringToBinaryA,CryptStringToBinaryA,0_2_00007FF875EB9410
                      Source: C:\Windows\System32\regsvr32.exeCode function: 3_2_00007FF875EB9410 CryptStringToBinaryA,CryptStringToBinaryA,3_2_00007FF875EB9410
                      Source: jYzNEOocXJ.dllStatic PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
                      Source: C:\Windows\System32\loaddll64.exeCode function: 0_2_00007FF875EAC334 FindFirstFileExW,0_2_00007FF875EAC334
                      Source: C:\Windows\System32\regsvr32.exeCode function: 3_2_00007FF875EAC334 FindFirstFileExW,3_2_00007FF875EAC334

                      Networking

                      barindex
                      System process connects to network (likely due to code injection or exploit)
                      Source: C:\Windows\System32\regsvr32.exeNetwork Connect: 115.178.55.22 80Jump to behavior
                      Source: C:\Windows\System32\regsvr32.exeNetwork Connect: 172.105.115.71 8080Jump to behavior
                      Snort IDS alert for network traffic
                      Source: TrafficSnort IDS: 2404304 ET CNC Feodo Tracker Reported CnC Server TCP group 3 192.168.2.4:49695 -> 115.178.55.22:80
                      C2 URLs / IPs found in malware configuration
                      Source: Malware configuration extractorIPs: 172.105.115.71:8080
                      Source: Malware configuration extractorIPs: 218.38.121.17:443
                      Source: Malware configuration extractorIPs: 186.250.48.5:443
                      Source: Malware configuration extractorIPs: 103.71.99.57:8080
                      Source: Malware configuration extractorIPs: 85.214.67.203:8080
                      Source: Malware configuration extractorIPs: 85.25.120.45:8080
                      Source: Malware configuration extractorIPs: 139.196.72.155:8080
                      Source: Malware configuration extractorIPs: 103.85.95.4:8080
                      Source: Malware configuration extractorIPs: 198.199.70.22:8080
                      Source: Malware configuration extractorIPs: 209.239.112.82:8080
                      Source: Malware configuration extractorIPs: 78.47.204.80:443
                      Source: Malware configuration extractorIPs: 36.67.23.59:443
                      Source: Malware configuration extractorIPs: 104.244.79.94:443
                      Source: Malware configuration extractorIPs: 62.171.178.147:8080
                      Source: Malware configuration extractorIPs: 195.77.239.39:8080
                      Source: Malware configuration extractorIPs: 103.56.149.105:8080
                      Source: Malware configuration extractorIPs: 80.211.107.116:8080
                      Source: Malware configuration extractorIPs: 93.104.209.107:8080
                      Source: Malware configuration extractorIPs: 174.138.33.49:7080
                      Source: Malware configuration extractorIPs: 202.28.34.99:8080
                      Source: Malware configuration extractorIPs: 178.62.112.199:8080
                      Source: Malware configuration extractorIPs: 114.79.130.68:443
                      Source: Malware configuration extractorIPs: 118.98.72.86:443
                      Source: Malware configuration extractorIPs: 103.41.204.169:8080
                      Source: Malware configuration extractorIPs: 178.238.225.252:8080
                      Source: Malware configuration extractorIPs: 83.229.80.93:8080
                      Source: Malware configuration extractorIPs: 46.101.98.60:8080
                      Source: Malware configuration extractorIPs: 82.98.180.154:7080
                      Source: Malware configuration extractorIPs: 87.106.97.83:7080
                      Source: Malware configuration extractorIPs: 196.44.98.190:8080
                      Source: Malware configuration extractorIPs: 139.59.80.108:8080
                      Source: Malware configuration extractorIPs: 103.224.241.74:8080
                      Source: Malware configuration extractorIPs: 103.254.12.236:7080
                      Source: Malware configuration extractorIPs: 185.148.169.10:8080
                      Source: Malware configuration extractorIPs: 165.22.254.236:8080
                      Source: Malware configuration extractorIPs: 37.44.244.177:8080
                      Source: Malware configuration extractorIPs: 54.37.228.122:443
                      Source: Malware configuration extractorIPs: 51.75.33.122:443
                      Source: Malware configuration extractorIPs: 128.199.217.206:443
                      Source: Malware configuration extractorIPs: 188.165.79.151:443
                      Source: Malware configuration extractorIPs: 210.57.209.142:8080
                      Source: Malware configuration extractorIPs: 160.16.143.191:8080
                      Source: Malware configuration extractorIPs: 175.126.176.79:8080
                      Source: Malware configuration extractorIPs: 202.134.4.210:7080
                      Source: Malware configuration extractor