Analysis
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max time kernel
138s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2023 02:04
Static task
static1
Behavioral task
behavioral1
Sample
c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
Resource
win10v2004-20231130-en
General
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Target
c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
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Size
46KB
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MD5
e6a54ac9fc726f9e97bf504300cce3b2
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SHA1
735ef8962bd6a9e4f45d7b9e03d6b5066923bfd5
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SHA256
c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1
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SHA512
ca5ac209f710e7a7d9fbf2d32258548afe757b149869d68257bd4fda6499c78c9174e4763991f1b6c27846038a6c286b3f465643b57bf8e1bfb19a7f48a24f5a
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SSDEEP
768:ebFP85m9v/hW+i20vMu/eDFxm5a2pc1SdwBLObtNGF58b60sADZEpYinAMxK6dQ:eRP8ka+BuCxiaY/SB4LGH06gi7HxLdQ
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot6414995176:AAGuFTS3tKhdeIu6sCNhCNw8cv7vkPJh1TQ/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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-1-5-21-1791582586-1997866593-3795608343-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nmegh = "C:\\Users\\Admin\\AppData\\Roaming\\Nmegh.exe" c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 41 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4024 set thread context of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1076 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 1076 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe Token: SeDebugPrivilege 1076 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98 PID 4024 wrote to memory of 1076 4024 c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe"C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exeC:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe.log
Filesize1KB
MD5489c7565f9b029ba9fadff774073cc98
SHA156c05089b33ee7e7dfa9e6a2d098164efd8e1150
SHA25610bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4
SHA512ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac