Analysis
- max time kernel
154s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
16/03/2024, 17:28
Static task
static1
Behavioral task
behavioral1
Sample
cea2d53f3741c750f8da141ce3044b9c.exe
Resource
win7-20240215-en
12 signatures
150 seconds
General
- Target cea2d53f3741c750f8da141ce3044b9c.exe
- Size 548KB
- Sample240316-v2b86sfe8x
- SHA256 059da1d4aca3dac5c4e827e9e7a5ebd07e3b3581135c200cdcb7c5e9be5065e3
- MD5 cea2d53f3741c750f8da141ce3044b9c
- SHA1 e4c40c26e0556447cbb8c5731aa3b4fe9a1e9399
- SHA512 36067bd002f52ea95d6eb2d2a84808a879bc0af619938ade50b2bb08fe440af897815b5066c89fbe7383f99f08a77449fdfd0524636b22a500117d3c17fec615
- SSDEEP 12288:e9dVKCxkIgeqXqXBb9P3BpcLLWW7HMwBIMQxlskGljE3af6EJ:yXKCFgeCqXBN3MswjQxkJ
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation cea2d53f3741c750f8da141ce3044b9c.exe - Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Against Down.lnk cea2d53f3741c750f8da141ce3044b9c.exe - Executes dropped EXE 2 IoCs
pid Process 1440 PairBusy.exe 1408 PairBusy.exe - Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini PairBusy.exe File opened for modification C:\Windows\assembly\Desktop.ini PairBusy.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1440 set thread context of 1408 1440 PairBusy.exe 111 - Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly PairBusy.exe File created C:\Windows\assembly\Desktop.ini PairBusy.exe File opened for modification C:\Windows\assembly\Desktop.ini PairBusy.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName PairBusy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 cea2d53f3741c750f8da141ce3044b9c.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName cea2d53f3741c750f8da141ce3044b9c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 PairBusy.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1440 PairBusy.exe 1440 PairBusy.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1408 PairBusy.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4160 cea2d53f3741c750f8da141ce3044b9c.exe Token: SeDebugPrivilege 1440 PairBusy.exe Token: SeDebugPrivilege 1408 PairBusy.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1408 PairBusy.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4160 wrote to memory of 1440 4160 cea2d53f3741c750f8da141ce3044b9c.exe 109 PID 4160 wrote to memory of 1440 4160 cea2d53f3741c750f8da141ce3044b9c.exe 109 PID 4160 wrote to memory of 1440 4160 cea2d53f3741c750f8da141ce3044b9c.exe 109 PID 1440 wrote to memory of 1408 1440 PairBusy.exe 111 PID 1440 wrote to memory of 1408 1440 PairBusy.exe 111 PID 1440 wrote to memory of 1408 1440 PairBusy.exe 111 PID 1440 wrote to memory of 1408 1440 PairBusy.exe 111 PID 1440 wrote to memory of 1408 1440 PairBusy.exe 111
Processes
-
C:\Users\Admin\AppData\Local\Temp\cea2d53f3741c750f8da141ce3044b9c.exe"C:\Users\Admin\AppData\Local\Temp\cea2d53f3741c750f8da141ce3044b9c.exe"1⤵
- Checks computer location settings
- Drops startup file
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe"C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe"C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe"3⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1408
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4232 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵PID:4360
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe
- Size 548KB
- SHA256 059da1d4aca3dac5c4e827e9e7a5ebd07e3b3581135c200cdcb7c5e9be5065e3
- MD5 cea2d53f3741c750f8da141ce3044b9c
- SHA1 e4c40c26e0556447cbb8c5731aa3b4fe9a1e9399
- SHA512 36067bd002f52ea95d6eb2d2a84808a879bc0af619938ade50b2bb08fe440af897815b5066c89fbe7383f99f08a77449fdfd0524636b22a500117d3c17fec615
- SSDEEP 12288:e9dVKCxkIgeqXqXBb9P3BpcLLWW7HMwBIMQxlskGljE3af6EJ:yXKCFgeCqXBN3MswjQxkJ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Or's industry\PairBusy.exe
- Size 381KB
- SHA256 80d20d77ae3725760fd2440ee083e55d41ea90cc18b74bdc903111152e63235d
- MD5 4e05ff6178990eab73ae9f921942f0bb
- SHA1 70e2fcd1c1dda8c949a89696584418de8e02e364
- SHA512 da14f0db2cf3823d868cf66ee10864a4f03485c409f4f9576827550015e009bf7a8a2968e034826f37805e9105e7a1db085278660c80d85820608c546e4e9243
- SSDEEP 6144:HP4/wGFFO1d3RsfFhk5Uk0qZkLxkIgeqXBsnyu2GG09PGABpcLNzdWnra7HMvr+J:e9dVKCxkIgeqXqXBb9P3BpcLLWW7HMwZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Against Down.lnk
- Size 1KB
- SHA256 c48e6b986c9d651d79e99c8fb68be02ed550725a2a00132d5044d8ea97fb6d9c
- MD5 5fcc748d1c6a11a6c2b422e0a57769fa
- SHA1 84f5e7b3ee1f8eb07f3c2a03ecfe0ddb6e72ffb3
- SHA512 a480e7e90590d1ff817af41b457c832ef468a7a406aff404973d9a83aa9b14ef9d35c60e130bd9f550779f22feaf872239c60a2c1715e25efbf7817bb2a68673
- MD5 SHA1 SHA512