Analysis
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max time kernel
43s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 04:22
Static task
static1
Behavioral task
behavioral1
Sample
cc58143048294ff5fd4eb525b9af83bd.exe
Resource
win7-20220812-en
6 signatures
150 seconds
General
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Target
cc58143048294ff5fd4eb525b9af83bd.exe
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Size
385KB
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MD5
cc58143048294ff5fd4eb525b9af83bd
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SHA1
10c859ebdd0207d13a4b07d62a5b1df9ba447502
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SHA256
43209724f0bd10e551388117ec98e9b22a296537b1c1eb6f6bc2b35239e63544
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SHA512
8e385d7cbf4f7fe55732a194456c56398b1c93d8271ac8c767a361f57e0e0b754b972f64acba710a0b20937a62fab2dadbde8e08b925c5f441307b541851e35c
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SSDEEP
6144:CGpL5+6yz3wmdCSBV4TbDX1gYd6jt8p4RR0cSpQTtyzsduHNIv:Bp9+6yzgJbZgbt8p4RR0TCtyYduHNI
Malware Config
Extracted
Family
nymaim
C2
45.139.105.171
85.31.46.167
Signatures
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Deletes itself 1 IoCs
pid Process 1932 cmd.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 1264 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1264 taskkill.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 816 wrote to memory of 1932 816 cc58143048294ff5fd4eb525b9af83bd.exe 29 PID 816 wrote to memory of 1932 816 cc58143048294ff5fd4eb525b9af83bd.exe 29 PID 816 wrote to memory of 1932 816 cc58143048294ff5fd4eb525b9af83bd.exe 29 PID 816 wrote to memory of 1932 816 cc58143048294ff5fd4eb525b9af83bd.exe 29 PID 1932 wrote to memory of 1264 1932 cmd.exe 31 PID 1932 wrote to memory of 1264 1932 cmd.exe 31 PID 1932 wrote to memory of 1264 1932 cmd.exe 31 PID 1932 wrote to memory of 1264 1932 cmd.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\cc58143048294ff5fd4eb525b9af83bd.exe"C:\Users\Admin\AppData\Local\Temp\cc58143048294ff5fd4eb525b9af83bd.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:816 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "cc58143048294ff5fd4eb525b9af83bd.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\cc58143048294ff5fd4eb525b9af83bd.exe" & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "cc58143048294ff5fd4eb525b9af83bd.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1264
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