Analysis
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max time kernel
158s -
max time network
196s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 17:57
Static task
static1
Behavioral task
behavioral1
Sample
a54d15a4b46f819424bb2959c8b370cb.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a54d15a4b46f819424bb2959c8b370cb.exe
Resource
win10v2004-20221111-en
General
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Target
a54d15a4b46f819424bb2959c8b370cb.exe
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Size
901KB
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MD5
a54d15a4b46f819424bb2959c8b370cb
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SHA1
e880d488227b62ec183dc402e956f5dfdea94330
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SHA256
60c994d3d36e7f3acacb7d607b4efc3605315e6996f0380ac2d230c0f29a5e90
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SHA512
69a5309c418af73eebaa490c2b197c8ce4931736afb7482c4225107261afe2c4bde9ad0d020291be1dfbbdf9e9a7ee44161a0433f4a15c0c3517716694ef9d35
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SSDEEP
24576:trVW0KE7V1CZcnjzz1bZsg/xeM6ZjguzCoIVmXC:lbjz9xCS0Coumy
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5577155192:AAEz6ZTkghx2RsdTxeeE-sDulPHc5WQblVg/
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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a54d15a4b46f819424bb2959c8b370cb.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a54d15a4b46f819424bb2959c8b370cb.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a54d15a4b46f819424bb2959c8b370cb.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.
Processes:
flow ioc 85 api.ipify.org 86 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription pid process target process PID 2100 set thread context of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exepid process 4588 a54d15a4b46f819424bb2959c8b370cb.exe 4588 a54d15a4b46f819424bb2959c8b370cb.exe 4588 a54d15a4b46f819424bb2959c8b370cb.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription pid process Token: SeDebugPrivilege 4588 a54d15a4b46f819424bb2959c8b370cb.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription pid process target process PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe PID 2100 wrote to memory of 4588 2100 a54d15a4b46f819424bb2959c8b370cb.exe a54d15a4b46f819424bb2959c8b370cb.exe -
outlook_office_path 1 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a54d15a4b46f819424bb2959c8b370cb.exe -
outlook_win_path 1 IoCs
Processes:
a54d15a4b46f819424bb2959c8b370cb.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a54d15a4b46f819424bb2959c8b370cb.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a54d15a4b46f819424bb2959c8b370cb.exe"C:\Users\Admin\AppData\Local\Temp\a54d15a4b46f819424bb2959c8b370cb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\a54d15a4b46f819424bb2959c8b370cb.exe"C:\Users\Admin\AppData\Local\Temp\a54d15a4b46f819424bb2959c8b370cb.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4588
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a54d15a4b46f819424bb2959c8b370cb.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3