Analysis
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max time kernel
102s -
max time network
162s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
27-07-2021 08:03
Static task
static1
Behavioral task
behavioral1
Sample
IMG PO 012807_32X.doc
Resource
win7v20210408
Behavioral task
behavioral2
Sample
IMG PO 012807_32X.doc
Resource
win10v20210408
General
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Target
IMG PO 012807_32X.doc
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Size
76KB
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MD5
9af6d69cd3b279c84b891f8ef7824731
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SHA1
f872dcb0021881e884fcbbbef07cea19a0725467
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SHA256
daca2995c370089febb1385775ee446b2a451b363a481437bf7ab9817b3dc711
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SHA512
4a051c27a5f8a772aaa8eab25bd7740bd7368f902acb2b976a4a4d60ad0a0cea0453d5e9084998e0db930667c854d7abc579227cfe3631a861bbfde95080ceb8
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
bh-16.webhostbox.net - Port:
587 - Username:
whesilolog@miratechs.gq - Password:
7213575aceACE@#$
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
Processes:
resource yara_rule behavioral1/memory/2024-72-0x0000000000350000-0x000000000035B000-memory.dmp CustAttr -
Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid process 6 1244 EQNEDT32.EXE -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
whesilo582512.exewhesilo582512.exepid process 2024 whesilo582512.exe 1128 whesilo582512.exe -
Loads dropped DLL 1 IoCs
Processes:
EQNEDT32.EXEpid process 1244 EQNEDT32.EXE -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 checkip.dyndns.org 9 freegeoip.app 10 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
whesilo582512.exedescription pid process target process PID 2024 set thread context of 1128 2024 whesilo582512.exe whesilo582512.exe -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Processes:
WINWORD.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 748 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
whesilo582512.exepid process 1128 whesilo582512.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
whesilo582512.exedescription pid process Token: SeDebugPrivilege 1128 whesilo582512.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 748 WINWORD.EXE 748 WINWORD.EXE -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEwhesilo582512.exedescription pid process target process PID 1244 wrote to memory of 2024 1244 EQNEDT32.EXE whesilo582512.exe PID 1244 wrote to memory of 2024 1244 EQNEDT32.EXE whesilo582512.exe PID 1244 wrote to memory of 2024 1244 EQNEDT32.EXE whesilo582512.exe PID 1244 wrote to memory of 2024 1244 EQNEDT32.EXE whesilo582512.exe PID 748 wrote to memory of 1040 748 WINWORD.EXE splwow64.exe PID 748 wrote to memory of 1040 748 WINWORD.EXE splwow64.exe PID 748 wrote to memory of 1040 748 WINWORD.EXE splwow64.exe PID 748 wrote to memory of 1040 748 WINWORD.EXE splwow64.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe PID 2024 wrote to memory of 1128 2024 whesilo582512.exe whesilo582512.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\IMG PO 012807_32X.doc"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\whesilo582512.exe"C:\Users\Admin\AppData\Roaming\whesilo582512.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\whesilo582512.exe"C:\Users\Admin\AppData\Roaming\whesilo582512.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\whesilo582512.exeMD5
ede697a91e18c73baf01ca677aa33917
SHA1699f96d0a34bfacd78a8530f507769d5d18dccc5
SHA2561e2785c94e1501731c09b13b6f8156548704a36dd5b220efab73c06ed4fd6bfc
SHA5127725d2f003a2aeecfe85dff03654b60ea80914ea39b369d6314443600750f4e13ab04a1c7a0925314e1013af034c0c4640dc3f98b9034851cff6b91c3c518bd9
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C:\Users\Admin\AppData\Roaming\whesilo582512.exeMD5
ede697a91e18c73baf01ca677aa33917
SHA1699f96d0a34bfacd78a8530f507769d5d18dccc5
SHA2561e2785c94e1501731c09b13b6f8156548704a36dd5b220efab73c06ed4fd6bfc
SHA5127725d2f003a2aeecfe85dff03654b60ea80914ea39b369d6314443600750f4e13ab04a1c7a0925314e1013af034c0c4640dc3f98b9034851cff6b91c3c518bd9
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C:\Users\Admin\AppData\Roaming\whesilo582512.exeMD5
ede697a91e18c73baf01ca677aa33917
SHA1699f96d0a34bfacd78a8530f507769d5d18dccc5
SHA2561e2785c94e1501731c09b13b6f8156548704a36dd5b220efab73c06ed4fd6bfc
SHA5127725d2f003a2aeecfe85dff03654b60ea80914ea39b369d6314443600750f4e13ab04a1c7a0925314e1013af034c0c4640dc3f98b9034851cff6b91c3c518bd9
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\Users\Admin\AppData\Roaming\whesilo582512.exeMD5
ede697a91e18c73baf01ca677aa33917
SHA1699f96d0a34bfacd78a8530f507769d5d18dccc5
SHA2561e2785c94e1501731c09b13b6f8156548704a36dd5b220efab73c06ed4fd6bfc
SHA5127725d2f003a2aeecfe85dff03654b60ea80914ea39b369d6314443600750f4e13ab04a1c7a0925314e1013af034c0c4640dc3f98b9034851cff6b91c3c518bd9
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memory/748-63-0x0000000075451000-0x0000000075453000-memory.dmpFilesize
8KB
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memory/748-60-0x0000000072111000-0x0000000072114000-memory.dmpFilesize
12KB
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memory/748-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/748-83-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/748-61-0x000000006FB91000-0x000000006FB93000-memory.dmpFilesize
8KB
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memory/1040-73-0x0000000000000000-mapping.dmp
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memory/1040-74-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmpFilesize
8KB
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memory/1128-78-0x000000000041F89E-mapping.dmp
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memory/1128-82-0x0000000004C40000-0x0000000004C41000-memory.dmpFilesize
4KB
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memory/1128-80-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/1128-77-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/2024-66-0x0000000000000000-mapping.dmp
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memory/2024-76-0x00000000009A0000-0x00000000009C6000-memory.dmpFilesize
152KB
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memory/2024-75-0x00000000049D0000-0x0000000004A38000-memory.dmpFilesize
416KB
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memory/2024-72-0x0000000000350000-0x000000000035B000-memory.dmpFilesize
44KB
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memory/2024-71-0x0000000000570000-0x0000000000571000-memory.dmpFilesize
4KB
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memory/2024-69-0x00000000009D0000-0x00000000009D1000-memory.dmpFilesize
4KB