Analysis
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max time kernel
122s -
max time network
120s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
19-10-2021 09:55
General
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Target
S.QUOKKA (S-618) - TCM.doc.exe
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Size
770KB
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MD5
545eaa55c962df648708bb0bb01bcb28
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SHA1
39e0c699f9bd668dc65561aef01451deeb41b073
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SHA256
138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef
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SHA512
4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.penavico--cz.com - Port:
587 - Username:
[email protected] - Password:
Fq$L%J((!6
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 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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Accesses Microsoft Outlook profiles 1 TTPs 3 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 2 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\S.QUOKKA (S-618) - TCM.doc.exe"C:\Users\Admin\AppData\Local\Temp\S.QUOKKA (S-618) - TCM.doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\S.QUOKKA (S-618) - TCM.doc.exe"C:\Users\Admin\AppData\Local\Temp\S.QUOKKA (S-618) - TCM.doc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\rb57\rb57.exe'" /f3⤵
- Creates scheduled task(s)
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C:\Windows\system32\taskeng.exetaskeng.exe {C9EC5D86-D517-4EEB-A37C-062FA443C1A1} S-1-5-21-2955169046-2371869340-1800780948-1000:UKNHJUQT\Admin:Interactive:[1]1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/380-73-0x0000000000000000-mapping.dmp
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memory/664-62-0x0000000000436A8E-mapping.dmp
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memory/664-57-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-59-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-58-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-60-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-63-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-66-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-69-0x0000000000080000-0x00000000000BC000-memory.dmpFilesize
240KB
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memory/664-70-0x0000000000080000-0x0000000000082000-memory.dmpFilesize
8KB
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memory/664-74-0x0000000002390000-0x0000000002391000-memory.dmpFilesize
4KB
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memory/900-72-0x0000000000000000-mapping.dmp
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memory/1216-54-0x0000000000910000-0x0000000000911000-memory.dmpFilesize
4KB
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memory/1216-56-0x0000000004A30000-0x0000000004A31000-memory.dmpFilesize
4KB