Analysis
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max time kernel
78s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
20/11/2022, 20:24
Static task
static1
Behavioral task
behavioral1
Sample
c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe
Resource
win7-20220812-en
General
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Target
c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe
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Size
3.2MB
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MD5
6937bcab74d24c82aefbcab2fcfb6e8b
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SHA1
8735dad4184444610383f69ccccd2a5eb50c2f26
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SHA256
c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa
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SHA512
702cae8da468ae8655e3898948e4862474dba01bd024fa78246f62e05479f39daba92317047952508b999dff496af200d1caaf4cc8b032f509fa140fa2979016
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SSDEEP
49152:X3hUShjLvkBVSb1+/zS7vBUMMS5dhQLt01oS4BgbOmVCBlp3wvvnZ1x:CBkbuO7BUMMS5dhQ61oFBAOmYlNWvZH
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 1 IoCs
pid Process 60 pBbS5dk4.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 3528 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3528 taskkill.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4828 wrote to memory of 60 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 85 PID 4828 wrote to memory of 60 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 85 PID 4828 wrote to memory of 60 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 85 PID 4828 wrote to memory of 4652 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 93 PID 4828 wrote to memory of 4652 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 93 PID 4828 wrote to memory of 4652 4828 c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe 93 PID 4652 wrote to memory of 3528 4652 cmd.exe 95 PID 4652 wrote to memory of 3528 4652 cmd.exe 95 PID 4652 wrote to memory of 3528 4652 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe"C:\Users\Admin\AppData\Local\Temp\c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\pBbS5dk4.exe2⤵
- Executes dropped EXE
PID:60
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4652 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "c02e40f2565478f5c2deb328f78819550dbbcee9b1c233129c22a6414b46cffa.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3528
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c