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Analysis
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max time kernel
103s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04/03/2024, 14:14
Static task
static1
Behavioral task
behavioral1
Sample
CNN.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
CNN.exe
Resource
win10v2004-20240226-en
General
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Target
CNN.exe
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Size
400KB
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MD5
d8ed33d452d8d7aea788c38df812c76f
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SHA1
6cb868e92badd1aed8b6fe2d6b56e76f04295383
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SHA256
bc166cd7e28545d2f52b1cce3f2eafc4824b4b4252440859cc4b7286e95bd8b5
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SHA512
6cbde610d30a0200b473f78542c9cb497702cc4b3240a9744b4bf53412a02049957495e785d53ad59faadeb128f3e4c939824569d00db69339463a8770f5f7b4
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SSDEEP
12288:B6niGh0/aP5R9XERpLR10qrRvnSWsNFGmOE7NF:B6R0/aXi1DV7s2m17b
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
jCXzqcP1 daniel 3116
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
jCXzqcP1 daniel 3116 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mpTrle = "C:\\Users\\Admin\\AppData\\Roaming\\mpTrle\\mpTrle.exe" CNN.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 29 api.ipify.org 30 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4284 set thread context of 4084 4284 CNN.exe 87 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4084 CNN.exe 4084 CNN.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4084 CNN.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87 PID 4284 wrote to memory of 4084 4284 CNN.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\CNN.exe"C:\Users\Admin\AppData\Local\Temp\CNN.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4284 -
C:\Users\Admin\AppData\Local\Temp\CNN.exe"C:\Users\Admin\AppData\Local\Temp\CNN.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42B
MD584cfdb4b995b1dbf543b26b86c863adc
SHA1d2f47764908bf30036cf8248b9ff5541e2711fa2
SHA256d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b
SHA512485f0ed45e13f00a93762cbf15b4b8f996553baa021152fae5aba051e3736bcd3ca8f4328f0e6d9e3e1f910c96c4a9ae055331123ee08e3c2ce3a99ac2e177ce