Analysis
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max time kernel
145s -
max time network
184s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
15-09-2021 15:56
Static task
static1
Behavioral task
behavioral1
Sample
857aff9992a47764185c61da2493c753.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
857aff9992a47764185c61da2493c753.exe
Resource
win10-en
General
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Target
857aff9992a47764185c61da2493c753.exe
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Size
407KB
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MD5
857aff9992a47764185c61da2493c753
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SHA1
6efa34cd3fdb299fcd940c0719d3a172bac83164
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SHA256
b73dc9d5947dd389cbae282955568d35ae3a38acd24983b116cdd8eb7ef67155
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SHA512
fbb2a5bfb068d4f56e338dc67f4d1a171af3156de2b3d956a0a1bd9526706f370cdff16cfb136049468b3a71db4c7ce99349265d3841db7775d5389b7aab798a
Malware Config
Extracted
njrat
0.7NC
NYAN CAT
pedrobedoya2021.duckdns.org:1980
cf13c225ff474d45b
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reg_key
cf13c225ff474d45b
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splitter
@!#&^%$
Signatures
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Suspicious use of SetThreadContext 1 IoCs
Processes:
857aff9992a47764185c61da2493c753.exedescription pid process target process PID 1648 set thread context of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 524 powershell.exe 524 powershell.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
powershell.exe857aff9992a47764185c61da2493c753.exedescription pid process Token: SeDebugPrivilege 524 powershell.exe Token: SeDebugPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe Token: 33 564 857aff9992a47764185c61da2493c753.exe Token: SeIncBasePriorityPrivilege 564 857aff9992a47764185c61da2493c753.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
857aff9992a47764185c61da2493c753.exedescription pid process target process PID 1648 wrote to memory of 524 1648 857aff9992a47764185c61da2493c753.exe powershell.exe PID 1648 wrote to memory of 524 1648 857aff9992a47764185c61da2493c753.exe powershell.exe PID 1648 wrote to memory of 524 1648 857aff9992a47764185c61da2493c753.exe powershell.exe PID 1648 wrote to memory of 524 1648 857aff9992a47764185c61da2493c753.exe powershell.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe PID 1648 wrote to memory of 564 1648 857aff9992a47764185c61da2493c753.exe 857aff9992a47764185c61da2493c753.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\857aff9992a47764185c61da2493c753.exe"C:\Users\Admin\AppData\Local\Temp\857aff9992a47764185c61da2493c753.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\857aff9992a47764185c61da2493c753.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\857aff9992a47764185c61da2493c753.exe"C:\Users\Admin\AppData\Local\Temp\857aff9992a47764185c61da2493c753.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/524-86-0x0000000006080000-0x0000000006081000-memory.dmpFilesize
4KB
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memory/524-87-0x00000000061A0000-0x00000000061A1000-memory.dmpFilesize
4KB
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memory/524-75-0x0000000004B22000-0x0000000004B23000-memory.dmpFilesize
4KB
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memory/524-110-0x0000000006310000-0x0000000006311000-memory.dmpFilesize
4KB
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memory/524-74-0x0000000004B20000-0x0000000004B21000-memory.dmpFilesize
4KB
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memory/524-66-0x0000000000000000-mapping.dmp
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memory/524-109-0x0000000006300000-0x0000000006301000-memory.dmpFilesize
4KB
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memory/524-76-0x0000000002590000-0x0000000002591000-memory.dmpFilesize
4KB
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memory/524-69-0x0000000076641000-0x0000000076643000-memory.dmpFilesize
8KB
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memory/524-95-0x0000000006230000-0x0000000006231000-memory.dmpFilesize
4KB
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memory/524-72-0x0000000000900000-0x0000000000901000-memory.dmpFilesize
4KB
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memory/524-73-0x0000000004B60000-0x0000000004B61000-memory.dmpFilesize
4KB
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memory/524-94-0x0000000006280000-0x0000000006281000-memory.dmpFilesize
4KB
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memory/524-82-0x000000007EF30000-0x000000007EF31000-memory.dmpFilesize
4KB
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memory/524-80-0x0000000005650000-0x0000000005651000-memory.dmpFilesize
4KB
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memory/524-77-0x0000000004950000-0x0000000004951000-memory.dmpFilesize
4KB
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memory/564-68-0x000000000040677E-mapping.dmp
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memory/564-70-0x0000000000400000-0x000000000040C000-memory.dmpFilesize
48KB
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memory/564-67-0x0000000000400000-0x000000000040C000-memory.dmpFilesize
48KB
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memory/564-111-0x0000000000D90000-0x0000000000D91000-memory.dmpFilesize
4KB
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memory/1648-65-0x0000000000660000-0x000000000067F000-memory.dmpFilesize
124KB
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memory/1648-60-0x0000000001330000-0x0000000001331000-memory.dmpFilesize
4KB
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memory/1648-62-0x0000000000750000-0x0000000000751000-memory.dmpFilesize
4KB
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memory/1648-63-0x0000000000430000-0x0000000000437000-memory.dmpFilesize
28KB
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memory/1648-64-0x0000000000E00000-0x0000000000E54000-memory.dmpFilesize
336KB