Analysis
- max time kernel
147s - max time network
115s - platform
windows10_x64 - resource
win10v20210410 - submitted
13/07/2021, 05:10
General
- Target Scan doc.exe
- Size 895KB
- Sample210713-av12e43max
- SHA256 6ebaa542dcd9f166b05338acb13c4c757cff7bf13305be412b9617e127924c88
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.oxychem.com.ph
-
Port
587
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Username
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Password
oxychempassword
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Scan doc.exe"C:\Users\Admin\AppData\Local\Temp\Scan doc.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\inygLks" /XML "C:\Users\Admin\AppData\Local\Temp\tmp139.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Scan doc.exe"C:\Users\Admin\AppData\Local\Temp\Scan doc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3944-123-0x00000000075C0000-0x000000000761D000-memory.dmp
memory/3944-117-0x0000000005680000-0x0000000005681000-memory.dmp
memory/3944-120-0x0000000005910000-0x0000000005911000-memory.dmp
memory/3944-121-0x0000000003010000-0x0000000003020000-memory.dmp
memory/3944-122-0x0000000007510000-0x00000000075B2000-memory.dmp
memory/3944-114-0x0000000000D40000-0x0000000000D41000-memory.dmp
memory/3944-118-0x0000000005680000-0x0000000005B7E000-memory.dmp
memory/3944-119-0x0000000005630000-0x0000000005631000-memory.dmp
memory/3944-116-0x0000000005B80000-0x0000000005B81000-memory.dmp
memory/4036-126-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4036-132-0x00000000057D0000-0x00000000057D1000-memory.dmp
memory/4036-134-0x0000000006440000-0x0000000006441000-memory.dmp
memory/4036-135-0x00000000064D0000-0x00000000064D1000-memory.dmp
memory/4036-138-0x00000000057D1000-0x00000000057D2000-memory.dmp