Windows Analysis Report doc_2021_98666_SIGNED - PRO FACTURA.exe

Overview

General Information

Sample Name: doc_2021_98666_SIGNED - PRO FACTURA.exe
Analysis ID: 458632
MD5: 532b5c7f4e3212a0d05e51c85864caf6
SHA1: 9a46dd2c45b724e23a0e3d316eb7fbc16b144e19
SHA256: 46510a62d266a7663f6cbe0a7ffbbba5019a6c890512e5d050b667a8b44f6ea6
Tags: exenull
Infos:

Detection

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

Signatures

Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected Nanocore RAT
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

AV Detection:

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Found malware configuration
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack Malware Configuration Extractor: NanoCore {"Version": "1.2.2.0", "Mutex": "7547b95a-3564-48ed-9de2-e9e7593f", "Group": "ikenna", "Domain1": "194.5.98.127", "Domain2": "127.0.0.1", "Port": 54984, "KeyboardLogging": "Enable", "RunOnStartup": "Enable", "RequestElevation": "Disable", "BypassUAC": "Enable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Enable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Enable", "ActivateAwayMode": "Enable", "EnableDebugMode": "Disable", "RunDelay": 0, "ConnectDelay": 4000, "RestartDelay": 5000, "TimeoutInterval": 5000, "KeepAliveTimeout": 30000, "MutexTimeout": 5000, "LanTimeout": 2500, "WanTimeout": 8000, "BufferSize": "ffff0000", "MaxPacketSize": "0000a000", "GCThreshold": "0000a000", "UseCustomDNS": "Enable", "PrimaryDNSServer": "8.8.8.8", "BackupDNSServer": "8.8.4.4", "BypassUserAccountControlData": "<?xml version=\"1.0\" encoding=\"UTF-16\"?>\r\n<Task version=\"1.2\" xmlns=\"http://schemas.microsoft.com/windows/2004/02/mit/task\">\r\n <RegistrationInfo />\r\n <Triggers />\r\n <Principals>\r\n <Principal id=\"Author\">\r\n <LogonType>InteractiveToken</LogonType>\r\n <RunLevel>HighestAvailable</RunLevel>\r\n </Principal>\r\n </Principals>\r\n <Settings>\r\n <MultipleInstancesPolicy>Parallel</MultipleInstancesPolicy>\r\n <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>\r\n <StopIfGoingOnBatteries>false</StopIfGoingOnBatteries>\r\n <AllowHardTerminate>true</AllowHardTerminate>\r\n <StartWhenAvailable>false</StartWhenAvailable>\r\n <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>\r\n <IdleSettings>\r\n <StopOnIdleEnd>false</StopOnIdleEnd>\r\n <RestartOnIdle>false</RestartOnIdle>\r\n </IdleSettings>\r\n <AllowStartOnDemand>true</AllowStartOnDemand>\r\n <Enabled>true</Enabled>\r\n <Hidden>false</Hidden>\r\n <RunOnlyIfIdle>false</RunOnlyIfIdle>\r\n <WakeToRun>false</WakeToRun>\r\n <ExecutionTimeLimit>PT0S</ExecutionTimeLimit>\r\n <Priority>4</Priority>\r\n </Settings>\r\n <Actions Context=\"Author\">\r\n <Exec>\r\n <Command>\"#EXECUTABLEPATH\"</Command>\r\n <Arguments>$(Arg0)</Arguments>\r\n </Exec>\r\n </Actions>\r\n</Task"}
Multi AV Scanner detection for dropped file
Source: C:\Users\user\AppData\Roaming\bWuIYd.exe Virustotal: Detection: 24% Perma Link
Source: C:\Users\user\AppData\Roaming\bWuIYd.exe ReversingLabs: Detection: 42%
Multi AV Scanner detection for submitted file
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Virustotal: Detection: 24% Perma Link
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe ReversingLabs: Detection: 42%
Yara detected Nanocore RAT
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR
Machine Learning detection for dropped file
Source: C:\Users\user\AppData\Roaming\bWuIYd.exe Joe Sandbox ML: detected
Machine Learning detection for sample
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Joe Sandbox ML: detected
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Networking:

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C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: 194.5.98.127
Source: Malware configuration extractor URLs: 127.0.0.1
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.667857482.0000000002F51000.00000004.00000001.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name

E-Banking Fraud:

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Yara detected Nanocore RAT
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR

System Summary:

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Malicious sample detected (through community Yara rule)
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Initial sample is a PE file and has a suspicious name
Source: initial sample Static PE information: Filename: doc_2021_98666_SIGNED - PRO FACTURA.exe
Detected potential crypto function
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Code function: 0_2_00007FFA35F95054 0_2_00007FFA35F95054
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Code function: 0_2_00007FFA35F910CD 0_2_00007FFA35F910CD
Sample file is different than original file name gathered from version info
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.667691107.0000000002DA0000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameConfigNodeType.dll> vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000000.649095168.0000000000BA8000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.674200296.000000001BEA0000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameStoreElement.dllB vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.674762014.000000001C730000.00000002.00000001.sdmp Binary or memory string: originalfilename vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.674762014.000000001C730000.00000002.00000001.sdmp Binary or memory string: OriginalFilenamepropsys.dll.mui@ vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.674584716.000000001C630000.00000002.00000001.sdmp Binary or memory string: System.OriginalFileName vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.667705643.0000000002DC0000.00000002.00000001.sdmp Binary or memory string: OriginalFilenamemscorrc.dllT vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.666640896.000000000106F000.00000004.00000020.sdmp Binary or memory string: OriginalFilenameclr.dllT vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000006.00000000.660097097.0000000000E78000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000007.00000002.661881271.0000000000D98000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000008.00000000.662860887.0000000000D18000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000009.00000000.664282260.0000000000CD8000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 0000000A.00000000.665605671.00000000008E8000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Binary or memory string: OriginalFilenameUCOMITypeL.exe6 vs doc_2021_98666_SIGNED - PRO FACTURA.exe
Yara signature match
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: bWuIYd.exe.0.dr Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: classification engine Classification label: mal100.troj.evad.winEXE@14/4@0/0
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File created: C:\Users\user\AppData\Roaming\bWuIYd.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Mutant created: \Sessions\1\BaseNamedObjects\ChziVbx
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6752:120:WilError_01
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File created: C:\Users\user\AppData\Local\Temp\tmpDCE9.tmp Jump to behavior
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_64\mscorlib\ac26e2af62f23e37e645b5e44068a025\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File read: C:\Users\user\Desktop\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Virustotal: Detection: 24%
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe ReversingLabs: Detection: 42%
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File read: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe 'C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe'
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Windows\System32\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\bWuIYd' /XML 'C:\Users\user\AppData\Local\Temp\tmpDCE9.tmp'
Source: C:\Windows\System32\schtasks.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Windows\System32\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\bWuIYd' /XML 'C:\Users\user\AppData\Local\Temp\tmpDCE9.tmp' Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{95E15D0A-66E6-93D9-C53C-76E6219D3341}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File opened: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorrc.dll Jump to behavior
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: Virtual size of .text is bigger than: 0x100000
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static file information: File size 1202688 > 1048576
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: Raw size of .text is bigger than: 0x100000 < 0x124600
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Data Obfuscation:

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Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Code function: 0_2_00007FFA35F97713 push ebx; retf 0_2_00007FFA35F9771A
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Code function: 0_2_00007FFA35F97F17 push ebx; ret 0_2_00007FFA35F97F1A
Source: initial sample Static PE information: section name: .text entropy: 7.71708373294
Source: initial sample Static PE information: section name: .text entropy: 7.71708373294

Persistence and Installation Behavior:

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Drops PE files
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe File created: C:\Users\user\AppData\Roaming\bWuIYd.exe Jump to dropped file

Boot Survival:

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Uses schtasks.exe or at.exe to add and modify task schedules
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Windows\System32\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\bWuIYd' /XML 'C:\Users\user\AppData\Local\Temp\tmpDCE9.tmp'

Hooking and other Techniques for Hiding and Protection:

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Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

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Yara detected AntiVM3
Source: Yara match File source: 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: WINE_GET_UNIX_FILE_NAME
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: SBIEDLL.DLL
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Thread delayed: delay time: 922337203685477 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe TID: 6516 Thread sleep time: -44045s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe TID: 6560 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Thread delayed: delay time: 44045 Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: vmware
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: C:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: SOFTWARE\VMware, Inc.\VMware Tools
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: VMWARE
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: InstallPath%C:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: VMWARE"SOFTWARE\VMware, Inc.\VMware ToolsLHARDWARE\DEVICEMAP\Scsi\Scsi Port 1\Scsi Bus 0\Target Id 0\Logical Unit Id 0LHARDWARE\DEVICEMAP\Scsi\Scsi Port 2\Scsi Bus 0\Target Id 0\Logical Unit Id 0'SYSTEM\ControlSet001\Services\Disk\Enum
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: VMware SVGA II
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.668794104.00000000032EA000.00000004.00000001.sdmp Binary or memory string: vmwareNSYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process information queried: ProcessInformation Jump to behavior

Anti Debugging:

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Enables debug privileges
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Windows\System32\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\bWuIYd' /XML 'C:\Users\user\AppData\Local\Temp\tmpDCE9.tmp' Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Process created: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Jump to behavior

Language, Device and Operating System Detection:

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Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Queries volume information: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\doc_2021_98666_SIGNED - PRO FACTURA.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information:

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Yara detected Nanocore RAT
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR

Remote Access Functionality:

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Detected Nanocore Rat
Source: doc_2021_98666_SIGNED - PRO FACTURA.exe, 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp String found in binary or memory: NanoCore.ClientPluginHost
Yara detected Nanocore RAT
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.doc_2021_98666_SIGNED - PRO FACTURA.exe.135d0338.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.669660281.0000000012F61000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: doc_2021_98666_SIGNED - PRO FACTURA.exe PID: 6512, type: MEMORYSTR

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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: 458632 Sample: doc_2021_98666_SIGNED - PRO... Startdate: 03/08/2021 Architecture: WINDOWS Score: 100 28 Found malware configuration 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Multi AV Scanner detection for dropped file 2->32 34 10 other signatures 2->34 7 doc_2021_98666_SIGNED - PRO FACTURA.exe 7 2->7         started        process3 file4 20 C:\Users\user\AppData\Roaming\bWuIYd.exe, PE32 7->20 dropped 22 C:\Users\user\...\bWuIYd.exe:Zone.Identifier, ASCII 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmpDCE9.tmp, XML 7->24 dropped 26 doc_2021_98666_SIG...PRO FACTURA.exe.log, ASCII 7->26 dropped 10 schtasks.exe 1 7->10         started        12 doc_2021_98666_SIGNED - PRO FACTURA.exe 7->12         started        14 doc_2021_98666_SIGNED - PRO FACTURA.exe 7->14         started        16 3 other processes 7->16 process5 process6 18 conhost.exe 10->18         started       
No contacted IP infos

Contacted URLs

Name Malicious Antivirus Detection Reputation
194.5.98.127 true
  • Avira URL Cloud: safe
 unknown
127.0.0.1 true
  • 0%, Virustotal, Browse
  • Avira URL Cloud: safe
 unknown