Analysis
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max time kernel
142s -
max time network
160s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
15-09-2021 06:56
General
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Target
KAF-PR-21-F-3089_pdf.exe
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Size
544KB
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MD5
b5fdcd6723e679c54a5f8652c59bc52a
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SHA1
fc83546ee73bea22ea563b9644700abef62d0ef2
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SHA256
245e18b14a6b231f2a89b812dace828478aa24419d600e2ac8c7acd989320e1a
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SHA512
788e6a270a1c05dad9bb322224ea62d6615828ab744e24879c363858ec68b8dddc83ecb0b4f99f39e594625b4effb26499d4fd07d11188ec6fb558fba93fb4a3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.fclbd.com - Port:
587 - Username:
ctg@fclbd.com - Password:
abc@123@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
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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
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Suspicious use of SetThreadContext 1 IoCs
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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 5 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\KAF-PR-21-F-3089_pdf.exe"C:\Users\Admin\AppData\Local\Temp\KAF-PR-21-F-3089_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- 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\KAF-PR-21-F-3089_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OgRWrNP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F69.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\KAF-PR-21-F-3089_pdf.exe"C:\Users\Admin\AppData\Local\Temp\KAF-PR-21-F-3089_pdf.exe"2⤵
- 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\KAF-PR-21-F-3089_pdf.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/580-116-0x00000000050A0000-0x00000000050A1000-memory.dmpFilesize
4KB
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memory/580-117-0x0000000004BA0000-0x0000000004BA1000-memory.dmpFilesize
4KB
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memory/580-118-0x0000000004B10000-0x0000000004B11000-memory.dmpFilesize
4KB
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memory/580-119-0x0000000004B20000-0x0000000004B21000-memory.dmpFilesize
4KB
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memory/580-120-0x0000000004DC0000-0x0000000004DC1000-memory.dmpFilesize
4KB
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memory/580-121-0x0000000004B30000-0x0000000004B37000-memory.dmpFilesize
28KB
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memory/580-122-0x0000000005840000-0x00000000058A1000-memory.dmpFilesize
388KB
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memory/580-123-0x0000000007DA0000-0x0000000007DD8000-memory.dmpFilesize
224KB
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memory/580-114-0x0000000000120000-0x0000000000121000-memory.dmpFilesize
4KB
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memory/2756-139-0x00000000045A0000-0x00000000045A1000-memory.dmpFilesize
4KB
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memory/2756-144-0x0000000007780000-0x0000000007781000-memory.dmpFilesize
4KB
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memory/2756-370-0x00000000092B0000-0x00000000092B1000-memory.dmpFilesize
4KB
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memory/2756-364-0x00000000092C0000-0x00000000092C1000-memory.dmpFilesize
4KB
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memory/2756-225-0x00000000045A3000-0x00000000045A4000-memory.dmpFilesize
4KB
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memory/2756-127-0x0000000004540000-0x0000000004541000-memory.dmpFilesize
4KB
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memory/2756-137-0x0000000006FC0000-0x0000000006FC1000-memory.dmpFilesize
4KB
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memory/2756-138-0x0000000007690000-0x0000000007691000-memory.dmpFilesize
4KB
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memory/2756-124-0x0000000000000000-mapping.dmp
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memory/2756-140-0x00000000045A2000-0x00000000045A3000-memory.dmpFilesize
4KB
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memory/2756-168-0x0000000009310000-0x0000000009311000-memory.dmpFilesize
4KB
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memory/2756-142-0x00000000078E0000-0x00000000078E1000-memory.dmpFilesize
4KB
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memory/2756-143-0x0000000007950000-0x0000000007951000-memory.dmpFilesize
4KB
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memory/2756-128-0x0000000007060000-0x0000000007061000-memory.dmpFilesize
4KB
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memory/2756-145-0x0000000008290000-0x0000000008291000-memory.dmpFilesize
4KB
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memory/2756-146-0x0000000008040000-0x0000000008041000-memory.dmpFilesize
4KB
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memory/2756-154-0x0000000009010000-0x0000000009043000-memory.dmpFilesize
204KB
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memory/2756-161-0x0000000008DF0000-0x0000000008DF1000-memory.dmpFilesize
4KB
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memory/2756-166-0x0000000009150000-0x0000000009151000-memory.dmpFilesize
4KB
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memory/2756-167-0x000000007E550000-0x000000007E551000-memory.dmpFilesize
4KB
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memory/3100-129-0x0000000000000000-mapping.dmp
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memory/3592-141-0x0000000005420000-0x0000000005421000-memory.dmpFilesize
4KB
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memory/3592-131-0x000000000043765E-mapping.dmp
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memory/3592-291-0x0000000005560000-0x0000000005561000-memory.dmpFilesize
4KB
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memory/3592-130-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/3592-387-0x0000000005421000-0x0000000005422000-memory.dmpFilesize
4KB