Analysis
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max time kernel
134s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03-11-2024 03:26
Static task
static1
Behavioral task
behavioral1
Sample
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
Resource
win10v2004-20241007-en
General
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Target
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe
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Size
254KB
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MD5
9ebc6b75390c63799ca45bdceccb1e44
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SHA1
6a7fefdfb98c9e5ef12cf157fb6c18911e990b45
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SHA256
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31
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SHA512
6b6888211f99165a65f082acbd94c1c75de78e90ffbbad6ceb4ddde6577c742fd4b3addd21203bc26108c92fe30e0c189f1fd9d85fa34656641fe7803fcaa2cf
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SSDEEP
6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQNE:EeGUA5YZazpXUmZhqE
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:
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe -
Executes dropped EXE 1 IoCs
Processes:
a1punf5t2of.exepid Process 3012 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
a1punf5t2of.exeb933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exea1punf5t2of.exedescription pid Process procid_target PID 5052 wrote to memory of 3012 5052 b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe 95 PID 5052 wrote to memory of 3012 5052 b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe 95 PID 5052 wrote to memory of 3012 5052 b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe 95 PID 3012 wrote to memory of 3116 3012 a1punf5t2of.exe 96 PID 3012 wrote to memory of 3116 3012 a1punf5t2of.exe 96 PID 3012 wrote to memory of 3116 3012 a1punf5t2of.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe"C:\Users\Admin\AppData\Local\Temp\b933bb07becfba01ab22534448e25ca7a7e6e9092dcb941d1b043eed667fbf31.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"3⤵PID:3116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
254KB
MD5b55bd74afd96368d38005d5a10524023
SHA165d394eb35e7af1cb44bc0ff47b4b3a9ca2d9e46
SHA25645c82d0d813aebb7c3256566ab35ca3c9a70ca988ea40a5731f1db86f3b16bf1
SHA5124eb51510a3663a23da023813ed43225edfb371c2f1469b080d038176545eb7cc29c1c05653e28ef941a4f7bff2c5f838980a9e11dc978c12a944932fd1bd2cf7