Analysis
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max time kernel
121s -
max time network
112s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
27-07-2021 19:31
Static task
static1
Behavioral task
behavioral1
Sample
$35@@#.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
$35@@#.exe
Resource
win10v20210408
General
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Target
$35@@#.exe
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Size
516KB
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MD5
fe61f0a471b697d0c381c64eddf3649c
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SHA1
bb8575caccc983a10f86de8c86e5e6598b993b27
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SHA256
412991e242a1a3b4325e9d22e9158880214f13fd0db68c8509fab47d4f09c9d5
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SHA512
6b279820631cd2d86d4e545a18b9dd1cedf81bfe921fbcddb8c042a9f64e2883c75acae047f770e15e4d01d0524f0d6de16de8dcf44428e06b382cfb138f78d0
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot1815802853:AAFwTZ6mRU-UOmcTcCR8glZAAkNmzHpMkL8/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/1320-126-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1320-127-0x000000000043773E-mapping.dmp family_agenttesla behavioral2/memory/1320-133-0x00000000050F0000-0x00000000055EE000-memory.dmp family_agenttesla -
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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
$35@@#.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\service.exe = "C:\\Users\\Admin\\AppData\\Roaming\\service.exe\\service.exe.exe" $35@@#.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
$35@@#.exedescription pid process target process PID 900 set thread context of 1320 900 $35@@#.exe $35@@#.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
$35@@#.exe$35@@#.exepid process 900 $35@@#.exe 900 $35@@#.exe 1320 $35@@#.exe 1320 $35@@#.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
$35@@#.exe$35@@#.exedescription pid process Token: SeDebugPrivilege 900 $35@@#.exe Token: SeDebugPrivilege 1320 $35@@#.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
$35@@#.exepid process 1320 $35@@#.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
$35@@#.exedescription pid process target process PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe PID 900 wrote to memory of 1320 900 $35@@#.exe $35@@#.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\$35@@#.exe"C:\Users\Admin\AppData\Local\Temp\$35@@#.exe"1⤵
- 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\$35@@#.exeC:\Users\Admin\AppData\Local\Temp\$35@@#.exe2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\$35@@#.exe.logMD5
9e7845217df4a635ec4341c3d52ed685
SHA1d65cb39d37392975b038ce503a585adadb805da5
SHA256d60e596ed3d5c13dc9f1660e6d870d99487e1383891437645c4562a9ecaa8c9b
SHA512307c3b4d4f2655bdeb177e7b9c981ca27513618903f02c120caa755c9da5a8dd03ebab660b56108a680720a97c1e9596692490aede18cc4bd77b9fc3d8e68aa1
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memory/900-118-0x00000000059A0000-0x00000000059A1000-memory.dmpFilesize
4KB
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memory/900-117-0x0000000005840000-0x0000000005841000-memory.dmpFilesize
4KB
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memory/900-114-0x0000000000F90000-0x0000000000F91000-memory.dmpFilesize
4KB
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memory/900-119-0x00000000058E0000-0x00000000058E1000-memory.dmpFilesize
4KB
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memory/900-120-0x0000000007BE0000-0x0000000007C39000-memory.dmpFilesize
356KB
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memory/900-125-0x0000000007F40000-0x0000000007FB5000-memory.dmpFilesize
468KB
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memory/900-116-0x0000000005EE0000-0x0000000005EE1000-memory.dmpFilesize
4KB
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memory/1320-126-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1320-127-0x000000000043773E-mapping.dmp
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memory/1320-132-0x0000000005220000-0x0000000005221000-memory.dmpFilesize
4KB
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memory/1320-133-0x00000000050F0000-0x00000000055EE000-memory.dmpFilesize
5.0MB
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memory/1320-134-0x00000000055A0000-0x00000000055A1000-memory.dmpFilesize
4KB
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memory/1320-135-0x0000000005D50000-0x0000000005D51000-memory.dmpFilesize
4KB