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Analysis
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max time kernel
55s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
22/06/2023, 09:15
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230621-en
General
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Target
tmp.exe
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Size
4.0MB
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MD5
d076c4b5f5c42b44d583c534f78adbe7
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SHA1
c35478e67d490145520be73277cd72cd4e837090
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SHA256
2c63c61e0adaaf669c9c674edfc9081d415c05b834611944a682f120ab9559d8
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SHA512
b2dfcf98695e7e40578f02a104a1c2fa1de29d13b0056d3dc4a5689168546f437bfd6acbc99e3766f94efb01bac5c908f3e80795f017e1629c97b6b1026ce638
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SSDEEP
49152:hGXwGFfpgG2Gv0l1YzzsYvbQaWfG85EIUFiqeb0/B1:MFaTGsgB4ENiqe
Malware Config
Extracted
laplas
http://185.209.161.189
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api_key
f0cd0c3938331a84425c6e784f577ccd87bb667cfdb44cc24f97f402ac5e15b7
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4652 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2177513644-1903222820-241662473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" tmp.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 2 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5104 wrote to memory of 4652 5104 tmp.exe 81 PID 5104 wrote to memory of 4652 5104 tmp.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5104 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
PID:4652
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
705.0MB
MD53a43f6df0791058080776b8f83fb3910
SHA1ef87b5e443fe9110e8a17a52a06ba3fb863a623d
SHA256ab639fa755ee71d4165696d0b9f453a67fc6e00578312ee87d50a402c4027915
SHA512d2045a5a33113c604c1cd172fcc5c16b10158b9d41f16c9af0c7ff5cffe4b16859bc1ff5803c689f6e4b471095a18bc82382b5e6bef8322351bf20c085da62b5
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Filesize
705.0MB
MD53a43f6df0791058080776b8f83fb3910
SHA1ef87b5e443fe9110e8a17a52a06ba3fb863a623d
SHA256ab639fa755ee71d4165696d0b9f453a67fc6e00578312ee87d50a402c4027915
SHA512d2045a5a33113c604c1cd172fcc5c16b10158b9d41f16c9af0c7ff5cffe4b16859bc1ff5803c689f6e4b471095a18bc82382b5e6bef8322351bf20c085da62b5