Analysis
- max time kernel
147s - max time network
118s - platform
windows10_x64 - resource
win10v20210410 - submitted
01/09/2021, 06:01
General
- Target hesaphareketi-01.pdf.exe
- Size 518KB
- Sample210901-dsewbeka2n
- SHA256 3b96e2efb3dc39986c3800ae1d490c149b3f2227867a03ed470c32f2ef14e39e
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
smtp.vivaldi.net
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Port
587
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Username
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Password
Davidchukwuka2016
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 15 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.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\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bTTHIyc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1756-114-0x0000000000830000-0x0000000000831000-memory.dmp
memory/1756-116-0x0000000007A80000-0x0000000007A81000-memory.dmp
memory/1756-117-0x0000000007620000-0x0000000007621000-memory.dmp
memory/1756-118-0x00000000075D0000-0x00000000075D1000-memory.dmp
memory/1756-119-0x0000000007810000-0x0000000007826000-memory.dmp
memory/1756-120-0x0000000009B10000-0x0000000009B11000-memory.dmp
memory/1756-121-0x0000000007580000-0x0000000007A7E000-memory.dmp
memory/1756-122-0x0000000009320000-0x0000000009387000-memory.dmp
memory/1756-123-0x0000000004B90000-0x0000000004BD0000-memory.dmp
memory/3988-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3988-131-0x0000000004F60000-0x0000000004F61000-memory.dmp
memory/3988-132-0x0000000005590000-0x0000000005591000-memory.dmp
memory/3988-133-0x0000000005C50000-0x0000000005C51000-memory.dmp
memory/3988-136-0x0000000004F61000-0x0000000004F62000-memory.dmp