Analysis
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max time kernel
131s -
max time network
72s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
27-07-2021 12:05
Static task
static1
Behavioral task
behavioral1
Sample
SOA.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
SOA.exe
Resource
win10v20210408
General
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Target
SOA.exe
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Size
804KB
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MD5
60183d985a20da08edde84ad283fdb57
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SHA1
fa905171e489e10068ba2853fcf8c83865019283
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SHA256
0663ffc968c7a2870e7c3234b4c2c2c5bae705a12a1f84ff4527af8d8b9466e5
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SHA512
074645a61274efa80eb6451abd37628fef9d15ff889cdc6fb6da74baf2514160e8d0f049c4927fa3890baaa031f945dbdd03604535d4cb26374f38c6db406cff
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
Mail.jingtai.com.vn - Port:
587 - Username:
markhung@jingtai.com.vn - Password:
truongtuyen2209
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/1552-126-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1552-127-0x000000000043768E-mapping.dmp family_agenttesla behavioral2/memory/1552-133-0x00000000051F0000-0x00000000056EE000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
SOA.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts SOA.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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
SOA.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\hgvQCmQ = "C:\\Users\\Admin\\AppData\\Roaming\\hgvQCmQ\\hgvQCmQ.exe" SOA.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SOA.exedescription pid process target process PID 808 set thread context of 1552 808 SOA.exe SOA.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
SOA.exepid process 1552 SOA.exe 1552 SOA.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
SOA.exedescription pid process Token: SeDebugPrivilege 1552 SOA.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
SOA.exedescription pid process target process PID 808 wrote to memory of 2036 808 SOA.exe schtasks.exe PID 808 wrote to memory of 2036 808 SOA.exe schtasks.exe PID 808 wrote to memory of 2036 808 SOA.exe schtasks.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe PID 808 wrote to memory of 1552 808 SOA.exe SOA.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"C:\Users\Admin\AppData\Local\Temp\SOA.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kzsOkRNINsZo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3440.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- 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\Local\Microsoft\CLR_v4.0_32\UsageLogs\SOA.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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C:\Users\Admin\AppData\Local\Temp\tmp3440.tmpMD5
e64e99fbe6237af5cac83f9c6b9d399e
SHA1228d36c6cf23e5687f5bdf952ad2ecf4234e8983
SHA256ed2d3fef99417cc8cb9929a5c18716da12702bfb0eabcfa0bc9c497c368c482a
SHA512080c117783a0780a0f2701c1326bb8e142a7bf2d91a0ec6feb91f935ee01a9ac17a601dda63b04f50d2687301df101e2a3765ebdb75e0c6331b5744d70b6a894
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memory/808-123-0x0000000006B60000-0x0000000006B9D000-memory.dmpFilesize
244KB
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memory/808-118-0x0000000004F60000-0x000000000545E000-memory.dmpFilesize
5.0MB
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memory/808-119-0x0000000004FF0000-0x0000000004FF1000-memory.dmpFilesize
4KB
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memory/808-120-0x0000000005450000-0x0000000005452000-memory.dmpFilesize
8KB
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memory/808-121-0x0000000008640000-0x0000000008641000-memory.dmpFilesize
4KB
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memory/808-122-0x0000000006C30000-0x0000000006CB3000-memory.dmpFilesize
524KB
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memory/808-114-0x00000000006E0000-0x00000000006E1000-memory.dmpFilesize
4KB
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memory/808-116-0x0000000005460000-0x0000000005461000-memory.dmpFilesize
4KB
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memory/808-117-0x0000000005000000-0x0000000005001000-memory.dmpFilesize
4KB
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memory/1552-127-0x000000000043768E-mapping.dmp
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memory/1552-126-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1552-133-0x00000000051F0000-0x00000000056EE000-memory.dmpFilesize
5.0MB
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memory/1552-134-0x0000000005270000-0x0000000005271000-memory.dmpFilesize
4KB
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memory/1552-135-0x0000000005E50000-0x0000000005E51000-memory.dmpFilesize
4KB
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memory/2036-124-0x0000000000000000-mapping.dmp