Resubmissions
13-02-2024 12:04
240213-n8wg3ahc2z 1004-12-2023 18:50
231204-xg8gzsec21 1004-12-2023 18:47
231204-xe7gxaec2v 10Analysis
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max time kernel
141s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13-02-2024 12:04
Static task
static1
Behavioral task
behavioral1
Sample
Kviitung_04-12-2023.rar
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Kviitung_04-12-2023.rar
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Kviitung_04-12-2023.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Kviitung_04-12-2023.exe
Resource
win10v2004-20231215-en
General
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Target
Kviitung_04-12-2023.rar
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Size
602KB
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MD5
fea76b9861cd494170f5edd89179dbb3
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SHA1
a5c8b5a1aa7c786463609d0bc844a5710d1b4361
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SHA256
128de5e09d0453bdce3abe943b88c72adb065971c9db3ee6e8075bd6651c356e
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SHA512
297c0978417152f9b117fb22fa0afa456cf9070606e3965a9df0fcfdb9c62b1fb0d5e8e5af9203a2f20d6bd9af32d62182f24b60ffb5e4305ba0fb09efed980b
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SSDEEP
12288:3H8nfotulgPDaqAc07qzo1n9oCgVrQhFBvyR0mMR:3RtdPDaPqzoF9OVrQFd1f
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-1-5-21-983843758-932321429-1636175382-1000\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-1-5-21-983843758-932321429-1636175382-1000_Classes\Local Settings cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
7zFM.exedescription pid process Token: SeRestorePrivilege 1136 7zFM.exe Token: 35 1136 7zFM.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
7zFM.exepid process 1136 7zFM.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
cmd.exedescription pid process target process PID 3428 wrote to memory of 1136 3428 cmd.exe 7zFM.exe PID 3428 wrote to memory of 1136 3428 cmd.exe 7zFM.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.rar1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.rar"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1136