Analysis
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max time kernel
132s -
max time network
160s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 08:03
Static task
static1
Behavioral task
behavioral1
Sample
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe
Resource
win10v2004-20220812-en
General
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Target
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe
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Size
174KB
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MD5
23fe7a27a1141faf9d3435adee6f2a4a
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SHA1
b6873dc9146cd661fafa4d10a5ed8a871ecc6ca1
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SHA256
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2
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SHA512
d718ce5de99515442e0d307d6bad216a603595b320299680bd83c628264ecef3dc007d9fbd9691b193c8a6e6aa8f96b0e1b8d7894cc89a696b5b725d093052b9
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SSDEEP
3072:YpzT4fCQ3zBP4mYKoWMgKe32ulW1tB26d+2YyiE8kjPsAERQsApiD2FIdodqns42:Y14aQDuvWlmgAd+4jPsAERQsApiD2Ky
Malware Config
Signatures
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Modifies Installed Components in the registry 2 TTPs 2 IoCs
Processes:
vbc.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{83K0N414-Q680-5EJ8-1145-OSNX07Y06W5K} vbc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{83K0N414-Q680-5EJ8-1145-OSNX07Y06W5K}\StubPath = "\"C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\vbc.exe\"" vbc.exe -
Uses the VBS compiler for execution 1 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
vbc.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ vbc.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype Plus = "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\vbc.exe" vbc.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exedescription pid process target process PID 1632 set thread context of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe -
Drops file in Windows directory 1 IoCs
Processes:
vbc.exedescription ioc process File created C:\Windows\Microsoft.NET\Framework\v2.0.50727\.Identifier vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exedescription pid process Token: SeDebugPrivilege 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exedescription pid process target process PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe PID 1632 wrote to memory of 1340 1632 38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe"C:\Users\Admin\AppData\Local\Temp\38c78a306b836f19948041390eb5f49b6cd5142024fb08f7c7ea10d560b5fdf2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"2⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1340-62-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-63-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-64-0x0000000000401F8F-mapping.dmp
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memory/1340-60-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-58-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-57-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-68-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1340-69-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/1632-54-0x0000000076091000-0x0000000076093000-memory.dmpFilesize
8KB
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memory/1632-55-0x00000000744B0000-0x0000000074A5B000-memory.dmpFilesize
5.7MB
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memory/1632-56-0x00000000744B0000-0x0000000074A5B000-memory.dmpFilesize
5.7MB
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memory/1632-67-0x00000000744B0000-0x0000000074A5B000-memory.dmpFilesize
5.7MB