Analysis
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max time kernel
153s -
max time network
162s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
24-01-2022 02:59
Static task
static1
Behavioral task
behavioral1
Sample
56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe
Resource
win7-en-20211208
General
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Target
56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe
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Size
76KB
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MD5
e846dc1ab2fdeae0f02faf9f92626a9e
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SHA1
79c4e44985b090ad3b6832355b38215d955a9277
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SHA256
56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a
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SHA512
c875b36917d57e50af45cb468cc05d22a01744fe2d2b4d12802342ff3a37996fa1432309b695402266274d4520101176043dda30d1607f250c59308d265c7346
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
system.exepid process 760 system.exe -
Drops startup file 1 IoCs
Processes:
56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mysystem.lnk 56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 33 IoCs
Processes:
system.exedescription pid process Token: SeDebugPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe Token: 33 760 system.exe Token: SeIncBasePriorityPrivilege 760 system.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exedescription pid process target process PID 536 wrote to memory of 760 536 56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe system.exe PID 536 wrote to memory of 760 536 56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe system.exe PID 536 wrote to memory of 760 536 56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe system.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe"C:\Users\Admin\AppData\Local\Temp\56c2f9dab29619513c5d1b0cf43c78021c4ab7e5161f3ed524493977b60b2e8a.exe"1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\system.exe"C:\Users\Admin\AppData\Local\Temp\system.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\system.exeMD5
22249eb9eda56570f33b44b2ad5f66d7
SHA1642d93447cfac014b556eebbc997890f09574172
SHA256ec83453b6fbd05e56ae0a4992b123500ddc36ce3083f113ff44a4e368ec8bc81
SHA512e9b714ae146482d358cfa6e914c2a1dfd81b163cf48a53c0359b2295357fb36f1e998f67a44a042d06e4f2c66df79c5f576b0475114079763feb7815cbb36bf1
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C:\Users\Admin\AppData\Local\Temp\system.exeMD5
22249eb9eda56570f33b44b2ad5f66d7
SHA1642d93447cfac014b556eebbc997890f09574172
SHA256ec83453b6fbd05e56ae0a4992b123500ddc36ce3083f113ff44a4e368ec8bc81
SHA512e9b714ae146482d358cfa6e914c2a1dfd81b163cf48a53c0359b2295357fb36f1e998f67a44a042d06e4f2c66df79c5f576b0475114079763feb7815cbb36bf1
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memory/536-55-0x0000000000C00000-0x0000000000C02000-memory.dmpFilesize
8KB
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memory/536-56-0x000007FEF2B90000-0x000007FEF3C26000-memory.dmpFilesize
16.6MB
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memory/536-57-0x0000000000C06000-0x0000000000C25000-memory.dmpFilesize
124KB
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memory/536-62-0x0000000000C26000-0x0000000000C27000-memory.dmpFilesize
4KB
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memory/536-61-0x0000000000C25000-0x0000000000C26000-memory.dmpFilesize
4KB
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memory/760-60-0x000007FEF2B90000-0x000007FEF3C26000-memory.dmpFilesize
16.6MB
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memory/760-63-0x0000000001FB0000-0x0000000001FB2000-memory.dmpFilesize
8KB