Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
19-04-2021 09:43
Static task
static1
Behavioral task
behavioral1
Sample
Drawings_pdf.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Drawings_pdf.exe
Resource
win10v20210410
General
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Target
Drawings_pdf.exe
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Size
699KB
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MD5
49b0e9e03c84e8ad389c2dda6038814a
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SHA1
7fc64feadb22791724f55808cbf872d1d5f8456e
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SHA256
22e3af3f64dbc6b64b2f47400be374dcf65bc990ac06bb2e7f77dbe1f61d922d
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SHA512
fb26c6661999b630ba3a80b4e9414c1f25cffe4a8387e40051552c00488d108175e5e16793ecc69cde3d3e3797f807f0b1c80dc27dfcfd86dcf3187e6f5e4634
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.soonlogistics.com - Port:
587 - Username:
[email protected] - Password:
admin6640!
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/1112-125-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1112-126-0x0000000000446C9E-mapping.dmp family_agenttesla behavioral2/memory/1112-138-0x0000000005770000-0x0000000005C6E000-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:
Drawings_pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\NewApp = "C:\\Users\\Admin\\AppData\\Roaming\\NewApp\\NewApp.exe" Drawings_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Drawings_pdf.exedescription pid process target process PID 3896 set thread context of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
Drawings_pdf.exepowershell.exeDrawings_pdf.exepid process 3896 Drawings_pdf.exe 3896 Drawings_pdf.exe 3896 Drawings_pdf.exe 2004 powershell.exe 2004 powershell.exe 2004 powershell.exe 1112 Drawings_pdf.exe 1112 Drawings_pdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Drawings_pdf.exepowershell.exeDrawings_pdf.exedescription pid process Token: SeDebugPrivilege 3896 Drawings_pdf.exe Token: SeDebugPrivilege 2004 powershell.exe Token: SeDebugPrivilege 1112 Drawings_pdf.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Drawings_pdf.exedescription pid process target process PID 3896 wrote to memory of 2004 3896 Drawings_pdf.exe powershell.exe PID 3896 wrote to memory of 2004 3896 Drawings_pdf.exe powershell.exe PID 3896 wrote to memory of 2004 3896 Drawings_pdf.exe powershell.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe PID 3896 wrote to memory of 1112 3896 Drawings_pdf.exe Drawings_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Drawings_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Drawings_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Drawings_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Drawings_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Drawings_pdf.exe"2⤵
- Adds Run key to start application
- 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\Microsoft\CLR_v4.0_32\UsageLogs\Drawings_pdf.exe.logMD5
c3cc52ccca9ff2b6fa8d267fc350ca6b
SHA1a68d4028333296d222e4afd75dea36fdc98d05f3
SHA2563125b6071e2d78f575a06ed7ac32a83d9262ae64d1fa81ac43e8bfc1ef157c0e
SHA512b0c7b2501b1a2c559795a9d178c0bbda0e03cbdbaaa2c4330ac1202a55373fe1b742078adcfa915bd6e805565a2daa6d35d64ef7a14ffcd09069f9ea6a691cc7
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memory/1112-125-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1112-138-0x0000000005770000-0x0000000005C6E000-memory.dmpFilesize
5.0MB
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memory/1112-126-0x0000000000446C9E-mapping.dmp
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memory/2004-142-0x0000000007BE0000-0x0000000007BE1000-memory.dmpFilesize
4KB
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memory/2004-134-0x00000000046F0000-0x00000000046F1000-memory.dmpFilesize
4KB
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memory/2004-168-0x00000000094E0000-0x00000000094E1000-memory.dmpFilesize
4KB
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memory/2004-167-0x0000000006E93000-0x0000000006E94000-memory.dmpFilesize
4KB
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memory/2004-166-0x000000007EEF0000-0x000000007EEF1000-memory.dmpFilesize
4KB
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memory/2004-124-0x0000000000000000-mapping.dmp
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memory/2004-165-0x0000000009320000-0x0000000009321000-memory.dmpFilesize
4KB
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memory/2004-160-0x00000000091C0000-0x00000000091C1000-memory.dmpFilesize
4KB
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memory/2004-153-0x00000000091E0000-0x0000000009213000-memory.dmpFilesize
204KB
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memory/2004-143-0x0000000007470000-0x0000000007471000-memory.dmpFilesize
4KB
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memory/2004-135-0x00000000074D0000-0x00000000074D1000-memory.dmpFilesize
4KB
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memory/2004-136-0x0000000007180000-0x0000000007181000-memory.dmpFilesize
4KB
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memory/2004-137-0x0000000007220000-0x0000000007221000-memory.dmpFilesize
4KB
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memory/2004-145-0x00000000082B0000-0x00000000082B1000-memory.dmpFilesize
4KB
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memory/2004-140-0x0000000006E90000-0x0000000006E91000-memory.dmpFilesize
4KB
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memory/2004-141-0x0000000006E92000-0x0000000006E93000-memory.dmpFilesize
4KB
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memory/2004-139-0x0000000007B70000-0x0000000007B71000-memory.dmpFilesize
4KB
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memory/2004-144-0x0000000008260000-0x0000000008261000-memory.dmpFilesize
4KB
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memory/3896-118-0x0000000005100000-0x0000000005101000-memory.dmpFilesize
4KB
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memory/3896-114-0x0000000000690000-0x0000000000691000-memory.dmpFilesize
4KB
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memory/3896-116-0x0000000005560000-0x0000000005561000-memory.dmpFilesize
4KB
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memory/3896-117-0x0000000004F80000-0x0000000004F81000-memory.dmpFilesize
4KB
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memory/3896-120-0x0000000004EE0000-0x0000000004F72000-memory.dmpFilesize
584KB
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memory/3896-119-0x0000000005020000-0x0000000005021000-memory.dmpFilesize
4KB
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memory/3896-123-0x0000000009AA0000-0x0000000009AF7000-memory.dmpFilesize
348KB
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memory/3896-122-0x0000000000EF0000-0x0000000000F7C000-memory.dmpFilesize
560KB
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memory/3896-121-0x0000000005260000-0x0000000005269000-memory.dmpFilesize
36KB