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Analysis
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max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
14/03/2023, 04:21
Static task
static1
Behavioral task
behavioral1
Sample
b76c2a73e579c3631b5d4671a4cfc4f4.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
b76c2a73e579c3631b5d4671a4cfc4f4.exe
Resource
win10v2004-20230221-en
General
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Target
b76c2a73e579c3631b5d4671a4cfc4f4.exe
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Size
34KB
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MD5
b76c2a73e579c3631b5d4671a4cfc4f4
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SHA1
863d99be05416fbad97b9755574b5fceaa86c89f
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SHA256
c31708aacbc8384784cd80c899d40ab84315381f64c41c8b1fe5d53911a6f1d8
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SHA512
bba2f6268bae744b8ddfe3326ad6ec49cab034817f2f5cb5b2617617e0b92db221807f08f728588dcff62128144256eb306aed9d580c084320a085c2901e8da3
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SSDEEP
768:KJLjkGoQ1/COVXQpq/S+tNjv3fwKUOYBXNb5d:KxgGoQ1/zWpR+Di9F5d
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation b76c2a73e579c3631b5d4671a4cfc4f4.exe -
Executes dropped EXE 1 IoCs
pid Process 116 loader.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 1 IoCs
description pid Process Token: SeDebugPrivilege 116 loader.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 116 loader.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1716 wrote to memory of 116 1716 b76c2a73e579c3631b5d4671a4cfc4f4.exe 87 PID 1716 wrote to memory of 116 1716 b76c2a73e579c3631b5d4671a4cfc4f4.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\b76c2a73e579c3631b5d4671a4cfc4f4.exe"C:\Users\Admin\AppData\Local\Temp\b76c2a73e579c3631b5d4671a4cfc4f4.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Roaming\loader.exe"C:\Users\Admin\AppData\Roaming\loader.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:116
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
10KB
MD57eaaa0cf450dcca42997720f1947922a
SHA18f7766ec27a05f710e07ffe77876c81cba110d23
SHA25679e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea
SHA512b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660
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Filesize
10KB
MD57eaaa0cf450dcca42997720f1947922a
SHA18f7766ec27a05f710e07ffe77876c81cba110d23
SHA25679e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea
SHA512b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660
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Filesize
10KB
MD57eaaa0cf450dcca42997720f1947922a
SHA18f7766ec27a05f710e07ffe77876c81cba110d23
SHA25679e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea
SHA512b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660