Analysis
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max time kernel
144s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23-03-2024 13:29
Static task
static1
Behavioral task
behavioral1
Sample
XClient.rar
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
XClient.rar
Resource
win10v2004-20240226-en
General
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Target
XClient.rar
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Size
40KB
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MD5
f6fe2b78efab65e5ed501ee5f2f9d556
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SHA1
36add79d625076f8341be0ac6161666a63144425
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SHA256
22adaea01c871a2dcc4dac36e4590ba5418ff0c487a8583eeda00d852b763647
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SHA512
eae214be1ea131f5aeff1ffce9852b38f2320d5367020ceb39de1abde3ad6f002e7d4ab4eb3bf12a3d4d45fdd052dd25bbbfa6c63a499ea664a3628c2af350e2
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SSDEEP
768:gXC6/UZqhWl5z0NAVH9QQzgVX/sjrCX2FQuz3n2sH994XiRqyrtVWEN91zvZBm:gXirKAVH9XgB1X2Fp2sdSgTZYEN9g
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.
Processes:
cmd.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
Processes:
cmd.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
7zFM.exedescription pid process Token: SeRestorePrivilege 4324 7zFM.exe Token: 35 4324 7zFM.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
7zFM.exepid process 4324 7zFM.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
cmd.exedescription pid process target process PID 4928 wrote to memory of 4324 4928 cmd.exe 7zFM.exe PID 4928 wrote to memory of 4324 4928 cmd.exe 7zFM.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\XClient.rar1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\XClient.rar"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4324
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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=4156 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵PID:3300