Analysis
- max time kernel
144s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/04/2024, 19:39
General
- Target 273e8547633b8547ad78c5dadfa19ac616a777bac6a2cd0b3c5ab77e0d8b58b3.exe
- Size 430KB
- Sample240403-yddnwaba78
- SHA256 273e8547633b8547ad78c5dadfa19ac616a777bac6a2cd0b3c5ab77e0d8b58b3
Malware Config
Extracted
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stealc
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http://185.172.128.209
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url_path
/3cd2b41cbde8fc9c.php
Signatures
- Detect ZGRat V1 3 IoCs
- Stealc
Stealc is an infostealer written in C++.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\273e8547633b8547ad78c5dadfa19ac616a777bac6a2cd0b3c5ab77e0d8b58b3.exe"C:\Users\Admin\AppData\Local\Temp\273e8547633b8547ad78c5dadfa19ac616a777bac6a2cd0b3c5ab77e0d8b58b3.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u14c.0.exe"C:\Users\Admin\AppData\Local\Temp\u14c.0.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KFIEHIIIJD.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\KFIEHIIIJD.exe"C:\Users\Admin\AppData\Local\Temp\KFIEHIIIJD.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\KFIEHIIIJD.exe5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 23963⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u14c.1.exe"C:\Users\Admin\AppData\Local\Temp\u14c.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 11882⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1452 -ip 14521⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 5116 -ip 51161⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
KFIEHIIIJD.exe
u14c.0.exe
u14c.1.exe
memory/512-197-0x0000000071C20000-0x00000000723D0000-memory.dmp
memory/512-199-0x0000000002B40000-0x0000000002B50000-memory.dmp
memory/512-196-0x0000000000770000-0x0000000000790000-memory.dmp
memory/512-202-0x0000000071C20000-0x00000000723D0000-memory.dmp
memory/1452-31-0x0000000000400000-0x0000000000889000-memory.dmp
memory/1452-32-0x0000000000B70000-0x0000000000BDC000-memory.dmp
memory/1452-3-0x0000000000400000-0x0000000000889000-memory.dmp
memory/1452-1-0x0000000000C30000-0x0000000000D30000-memory.dmp
memory/1452-2-0x0000000000B70000-0x0000000000BDC000-memory.dmp
memory/3460-160-0x000001C5C4B20000-0x000001C5C4B96000-memory.dmp
memory/3460-170-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-137-0x00007FFFC6E70000-0x00007FFFC7931000-memory.dmp
memory/3460-142-0x000001C5A56E0000-0x000001C5A8FD8000-memory.dmp
memory/3460-208-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-207-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-149-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-150-0x000001C5C45A0000-0x000001C5C46B0000-memory.dmp
memory/3460-152-0x000001C5AAD90000-0x000001C5AAD9C000-memory.dmp
memory/3460-153-0x000001C5AAD60000-0x000001C5AAD74000-memory.dmp
memory/3460-151-0x000001C5A9410000-0x000001C5A9420000-memory.dmp
memory/3460-154-0x000001C5AADA0000-0x000001C5AADC4000-memory.dmp
memory/3460-156-0x000001C5C4440000-0x000001C5C446A000-memory.dmp
memory/3460-157-0x000001C5C4990000-0x000001C5C4A42000-memory.dmp
memory/3460-158-0x000001C5C46B0000-0x000001C5C472A000-memory.dmp
memory/3460-205-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-159-0x000001C5C4A40000-0x000001C5C4AA2000-memory.dmp
memory/3460-155-0x000001C5C4420000-0x000001C5C442A000-memory.dmp
memory/3460-161-0x000001C5C4430000-0x000001C5C443A000-memory.dmp
memory/3460-165-0x000001C5C4BA0000-0x000001C5C4EA0000-memory.dmp
memory/3460-206-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-169-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-171-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-204-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-173-0x000001C5C8E80000-0x000001C5C8E8E000-memory.dmp
memory/3460-172-0x000001C5C8EB0000-0x000001C5C8EE8000-memory.dmp
memory/3460-168-0x000001C5C9570000-0x000001C5C9578000-memory.dmp
memory/3460-174-0x000001C5CA010000-0x000001C5CA01A000-memory.dmp
memory/3460-175-0x000001C5CA020000-0x000001C5CA042000-memory.dmp
memory/3460-176-0x000001C5CA570000-0x000001C5CAA98000-memory.dmp
memory/3460-180-0x000001C5C4490000-0x000001C5C44A0000-memory.dmp
memory/3460-181-0x000001C5C9D90000-0x000001C5C9D9C000-memory.dmp
memory/3460-179-0x000001C5C9DE0000-0x000001C5C9E30000-memory.dmp
memory/3460-186-0x000001C5C9E30000-0x000001C5C9E52000-memory.dmp
memory/3460-203-0x00007FFFC6E70000-0x00007FFFC7931000-memory.dmp
memory/3460-188-0x000001C5C50C0000-0x000001C5C50DE000-memory.dmp
memory/4892-26-0x00000000027F0000-0x00000000027F1000-memory.dmp
memory/4892-136-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4892-101-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/5116-33-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/5116-15-0x0000000000400000-0x0000000000869000-memory.dmp
memory/5116-198-0x0000000000400000-0x0000000000869000-memory.dmp
memory/5116-13-0x0000000000B60000-0x0000000000C60000-memory.dmp
memory/5116-14-0x00000000009C0000-0x00000000009E7000-memory.dmp
memory/5116-100-0x0000000000400000-0x0000000000869000-memory.dmp
memory/5116-167-0x0000000000400000-0x0000000000869000-memory.dmp
memory/5116-148-0x0000000000400000-0x0000000000869000-memory.dmp
memory/5116-147-0x0000000000B60000-0x0000000000C60000-memory.dmp