Analysis
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max time kernel
137s -
max time network
32s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
08-07-2020 06:31
Static task
static1
Behavioral task
behavioral1
Sample
PO-584696.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
PO-584696.exe
Resource
win10
General
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Target
PO-584696.exe
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Size
871KB
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MD5
03adef2db5fd818d8f7f388ff1a4504c
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SHA1
51a5ba587e65ec378e944a40d55f18ecbc59cde9
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SHA256
f9e4285da09e52bb7663a55b15e36210aead9761fab4f7e63563259566f4b740
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SHA512
e81c2ef2f71771bf1f2510d745b4d53370b704ac1bb7b32f0a44f6b36e348259892d2175e14513202be339e9cee05d031a73d4f880722e063cb8d9bab8eacb56
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.vivaldi.net - Port:
587 - Username:
[email protected] - Password:
computer1$$$
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1764-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1764-5-0x0000000000446E3E-mapping.dmp family_agenttesla behavioral1/memory/1764-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1764-7-0x0000000000400000-0x000000000044C000-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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Suspicious use of SetThreadContext 1 IoCs
Processes:
PO-584696.exedescription pid process target process PID 1400 set thread context of 1764 1400 PO-584696.exe PO-584696.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:
PO-584696.exepid process 1764 PO-584696.exe 1764 PO-584696.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO-584696.exedescription pid process Token: SeDebugPrivilege 1764 PO-584696.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PO-584696.exedescription pid process target process PID 1400 wrote to memory of 1804 1400 PO-584696.exe schtasks.exe PID 1400 wrote to memory of 1804 1400 PO-584696.exe schtasks.exe PID 1400 wrote to memory of 1804 1400 PO-584696.exe schtasks.exe PID 1400 wrote to memory of 1804 1400 PO-584696.exe schtasks.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe PID 1400 wrote to memory of 1764 1400 PO-584696.exe PO-584696.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-584696.exe"C:\Users\Admin\AppData\Local\Temp\PO-584696.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\CmTlvWCBpCNaNS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp62D7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO-584696.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp62D7.tmpMD5
ef7d4358fe2ff2df848e3a8d3e8dbbad
SHA1970dd061bff21e1bf6e04d24a3371e8b8a780d7e
SHA2564eac1014ed039b5426363bd8ce1b2d33b809e32407d5355b5ced13f7ae6ad25e
SHA512c67498c2ee33c8b29989baf61f97993dfadc511a66e22b4e736a75e18cd154c8a97ae6445cf1c51a8e4ab4d958fc65beb7c938bed7f6446847ea55cb90ccaddd
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memory/1400-1-0x0000000000000000-0x0000000000000000-disk.dmp
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memory/1764-4-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1764-5-0x0000000000446E3E-mapping.dmp
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memory/1764-6-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1764-7-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1804-2-0x0000000000000000-mapping.dmp