Analysis
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max time kernel
1484s -
max time network
1493s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-03-2024 15:20
Static task
static1
Behavioral task
behavioral1
Sample
VC_redist.x86.exe
Resource
win11-20240221-en
General
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Target
VC_redist.x86.exe
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Size
13.2MB
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MD5
9882a328c8414274555845fa6b542d1e
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SHA1
ab4a97610b127d68c45311deabfbcd8aa7066f4b
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SHA256
510fc8c2112e2bc544fb29a72191eabcc68d3a5a7468d35d7694493bc8593a79
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SHA512
c08d1aa7e6e6215a0cee2793592b65668066c8c984b26675d2b8c09bc7fee21411cb3c0a905eaee7a48e7a47535fa777de21eeb07c78bca7bf3d7bb17192acf2
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SSDEEP
196608:oRjgvJ2flpQcIIS/Rj7BWl+aV8t8z72BxBwBgO42BE6+2DQlMp1sHW5ZDmCCM0Xr:IgRIlptVYmfr7yBG/4pXMHsHW76CsGE
Malware Config
Signatures
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Executes dropped EXE 1 IoCs
Processes:
VC_redist.x86.exepid process 4108 VC_redist.x86.exe -
Loads dropped DLL 1 IoCs
Processes:
VC_redist.x86.exepid process 4108 VC_redist.x86.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
VC_redist.x86.exedescription pid process target process PID 1968 wrote to memory of 4108 1968 VC_redist.x86.exe VC_redist.x86.exe PID 1968 wrote to memory of 4108 1968 VC_redist.x86.exe VC_redist.x86.exe PID 1968 wrote to memory of 4108 1968 VC_redist.x86.exe VC_redist.x86.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\VC_redist.x86.exe"C:\Users\Admin\AppData\Local\Temp\VC_redist.x86.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\Temp\{DFA22BFC-4FF5-4C99-9460-9A478F4A16F9}\.cr\VC_redist.x86.exe"C:\Windows\Temp\{DFA22BFC-4FF5-4C99-9460-9A478F4A16F9}\.cr\VC_redist.x86.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\VC_redist.x86.exe" -burn.filehandle.attached=576 -burn.filehandle.self=5642⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4108
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5d6bd210f227442b3362493d046cea233
SHA1ff286ac8370fc655aea0ef35e9cf0bfcb6d698de
SHA256335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
SHA512464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b
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Filesize
191KB
MD5eab9caf4277829abdf6223ec1efa0edd
SHA174862ecf349a9bedd32699f2a7a4e00b4727543d
SHA256a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041
SHA51245b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2
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Filesize
634KB
MD57bd0b2d204d75012d3a9a9ce107c379e
SHA141edd6321965d48e11ecded3852eb32e3c13848d
SHA256d4c6f5c74bbb45c4f33d9cb7ddce47226ea0a5ab90b8ff3f420b63a55c3f6dd2
SHA512d85ac030ebb3ba4412e69b5693406fe87e46696ca2a926ef75b6f6438e16b0c7ed1342363098530cdceb4db8e50614f33f972f7995e4222313fcef036887d0f0