Analysis
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max time kernel
59s -
max time network
105s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 19:38
General
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Target
167647227-54134-sdfnt4-2.pdf.exe
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Size
490KB
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MD5
c0439cb689521497f7196071bb6d7709
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SHA1
54871ad8ffc2e1b2c219cc11bd2a0f959478c3b2
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SHA256
5c133741b443850a940c58eb5a162c485b8186d0db0c99be3962e277eecca550
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SHA512
63df0c63fe678113185e5b61d5a700e191f1e384c85b91119bdfe8f934a0f4ff1343e6a4f84f8838868b290d34a7674c6f12a67e45db516d35b23f851b48dfb4
Malware Config
Extracted
Protocol: smtp- Host:
smtp.mail.ru - Port:
587 - Username:
imateubort@inbox.ru - Password:
rbrt@al72
Extracted
agenttesla
Protocol: smtp- Host:
smtp.mail.ru - Port:
587 - Username:
imateubort@inbox.ru - Password:
rbrt@al72
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload 2 IoCs
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rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
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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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Suspicious use of SetThreadContext 1 IoCs
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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 WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\167647227-54134-sdfnt4-2.pdf.exe"C:\Users\Admin\AppData\Local\Temp\167647227-54134-sdfnt4-2.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\167647227-54134-sdfnt4-2.pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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\167647227-54134-sdfnt4-2.pdf.exe.logMD5
b4f7a6a57cb46d94b72410eb6a6d45a9
SHA169f3596ffa027202d391444b769ceea0ae14c5f7
SHA25623994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b
SHA512be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c
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memory/1192-9-0x000000000A2A0000-0x000000000A2A1000-memory.dmpFilesize
4KB
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memory/1192-1-0x0000000000980000-0x0000000000981000-memory.dmpFilesize
4KB
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memory/1192-4-0x0000000008070000-0x0000000008071000-memory.dmpFilesize
4KB
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memory/1192-5-0x0000000007D90000-0x0000000007D91000-memory.dmpFilesize
4KB
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memory/1192-6-0x0000000007D40000-0x0000000007D41000-memory.dmpFilesize
4KB
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memory/1192-7-0x0000000004DF0000-0x0000000004DF3000-memory.dmpFilesize
12KB
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memory/1192-3-0x0000000005410000-0x000000000546A000-memory.dmpFilesize
360KB
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memory/1192-0-0x0000000073A70000-0x000000007415E000-memory.dmpFilesize
6.9MB
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memory/1192-8-0x000000000A1A0000-0x000000000A1F3000-memory.dmpFilesize
332KB
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memory/2188-20-0x0000000000000000-mapping.dmp
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memory/2432-11-0x000000000044C80E-mapping.dmp
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memory/2432-10-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/2432-13-0x0000000073A70000-0x000000007415E000-memory.dmpFilesize
6.9MB
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memory/2432-18-0x0000000005990000-0x0000000005991000-memory.dmpFilesize
4KB
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memory/2432-19-0x00000000063D0000-0x00000000063D1000-memory.dmpFilesize
4KB