Analysis
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max time kernel
140s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
06-08-2023 16:33
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230703-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 1336 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\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 17 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4164 wrote to memory of 1336 4164 tmp.exe 85 PID 4164 wrote to memory of 1336 4164 tmp.exe 85
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:4164 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
PID:1336
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
744.0MB
MD5453ed9c43b7b4b4c6aaaf37e3b9c45fc
SHA1a8a8a24fc6bf91a87771b8e4d1ea0b7aae17e6eb
SHA25663081553f67a2d2b29cacee46ced8e1994d4b8b306a99840d69d6ddfc3d71d50
SHA512cfe7d24383ae345cad2abe744ca10dffe04da8a838c79978b1676d4c635425e1030c79500926051e44603dd7692486b0bf9fff9276296b592b607310796fe4f2
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Filesize
744.0MB
MD5453ed9c43b7b4b4c6aaaf37e3b9c45fc
SHA1a8a8a24fc6bf91a87771b8e4d1ea0b7aae17e6eb
SHA25663081553f67a2d2b29cacee46ced8e1994d4b8b306a99840d69d6ddfc3d71d50
SHA512cfe7d24383ae345cad2abe744ca10dffe04da8a838c79978b1676d4c635425e1030c79500926051e44603dd7692486b0bf9fff9276296b592b607310796fe4f2