Analysis
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max time kernel
74s -
max time network
131s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 19:37
General
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Target
FACTURA Y ALBARANES.exe
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Size
506KB
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MD5
f9d88f65edab1dcd6d14ce9fa7f3b3bb
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SHA1
d7d56c3cdf5e17743c6ac38cd33884dc12e016ba
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SHA256
8884820e4b10d43f04ccd1a7ff14eafccadf1184ce080b2b2e0836a7dc786f4e
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SHA512
bf866c2e87385d106039f9aa28decae2ea196ba236946f3c821b617ccc9963025faa6c2c7c091ddc30ce71d49bb123dee7f6be26dc680a9c3a19ee031f0f5d94
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.fridec.com - Port:
587 - Username:
montse.varas@fridec.com - Password:
@zOmvs]eL!$*
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 2 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.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\FACTURA Y ALBARANES.exe.logMD5
b4f7a6a57cb46d94b72410eb6a6d45a9
SHA169f3596ffa027202d391444b769ceea0ae14c5f7
SHA25623994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b
SHA512be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c
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memory/204-17-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/204-26-0x0000000006350000-0x0000000006351000-memory.dmpFilesize
4KB
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memory/204-25-0x0000000005730000-0x0000000005731000-memory.dmpFilesize
4KB
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memory/204-20-0x0000000073190000-0x000000007387E000-memory.dmpFilesize
6.9MB
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memory/204-18-0x000000000044C94E-mapping.dmp
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memory/580-4-0x0000000007740000-0x0000000007741000-memory.dmpFilesize
4KB
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memory/580-16-0x000000000B2C0000-0x000000000B2C1000-memory.dmpFilesize
4KB
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memory/580-15-0x000000000B060000-0x000000000B0B3000-memory.dmpFilesize
332KB
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memory/580-14-0x0000000004C30000-0x0000000004C33000-memory.dmpFilesize
12KB
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memory/580-5-0x0000000007720000-0x0000000007721000-memory.dmpFilesize
4KB
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memory/580-0-0x0000000073190000-0x000000007387E000-memory.dmpFilesize
6.9MB
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memory/580-3-0x0000000007B60000-0x0000000007B61000-memory.dmpFilesize
4KB
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memory/580-1-0x0000000000970000-0x0000000000971000-memory.dmpFilesize
4KB
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memory/2884-27-0x0000000000000000-mapping.dmp