Analysis
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max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
25/02/2024, 17:05
Static task
static1
Behavioral task
behavioral1
Sample
a4537efbaf70b330822dc21779fc93a0.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a4537efbaf70b330822dc21779fc93a0.exe
Resource
win10v2004-20240221-en
General
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Target
a4537efbaf70b330822dc21779fc93a0.exe
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Size
122KB
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MD5
a4537efbaf70b330822dc21779fc93a0
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SHA1
99e0dcdcb05537e421e5bbf79bb03b0d3a9e9978
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SHA256
d47efd398a25f0ec20b281888b80b31e2882329d1258406973b11a61a88f1223
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SHA512
d101207f7f8e3710ef090777e8fd777e674dbc419fbef2eae47c44490c45089c094e17a2abc603c845e082fab128a02c1235b0990039826139e0d8254e9663d9
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SSDEEP
3072:sF67cTuAEvl67o9Beb2LV7+ywBsSZLlOSlN5XY9NnlutTzzmvB//+c:sI7kzE95CjlOSX5ol6TM9
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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation a4537efbaf70b330822dc21779fc93a0.exe -
Executes dropped EXE 1 IoCs
pid Process 1340 svchost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1414748551-1520717498-2956787782-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svchost.exe" a4537efbaf70b330822dc21779fc93a0.exe -
Enumerates connected drives 3 TTPs 21 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\J: svchost.exe File opened (read-only) \??\T: svchost.exe File opened (read-only) \??\G: svchost.exe File opened (read-only) \??\H: svchost.exe File opened (read-only) \??\L: svchost.exe File opened (read-only) \??\U: svchost.exe File opened (read-only) \??\V: svchost.exe File opened (read-only) \??\S: svchost.exe File opened (read-only) \??\W: svchost.exe File opened (read-only) \??\E: svchost.exe File opened (read-only) \??\I: svchost.exe File opened (read-only) \??\P: svchost.exe File opened (read-only) \??\Q: svchost.exe File opened (read-only) \??\R: svchost.exe File opened (read-only) \??\Y: svchost.exe File opened (read-only) \??\Z: svchost.exe File opened (read-only) \??\K: svchost.exe File opened (read-only) \??\M: svchost.exe File opened (read-only) \??\N: svchost.exe File opened (read-only) \??\O: svchost.exe File opened (read-only) \??\X: svchost.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
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ a4537efbaf70b330822dc21779fc93a0.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5052 wrote to memory of 1340 5052 a4537efbaf70b330822dc21779fc93a0.exe 88 PID 5052 wrote to memory of 1340 5052 a4537efbaf70b330822dc21779fc93a0.exe 88 PID 5052 wrote to memory of 1340 5052 a4537efbaf70b330822dc21779fc93a0.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\a4537efbaf70b330822dc21779fc93a0.exe"C:\Users\Admin\AppData\Local\Temp\a4537efbaf70b330822dc21779fc93a0.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"2⤵
- Executes dropped EXE
- Enumerates connected drives
PID:1340
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
122KB
MD5a4537efbaf70b330822dc21779fc93a0
SHA199e0dcdcb05537e421e5bbf79bb03b0d3a9e9978
SHA256d47efd398a25f0ec20b281888b80b31e2882329d1258406973b11a61a88f1223
SHA512d101207f7f8e3710ef090777e8fd777e674dbc419fbef2eae47c44490c45089c094e17a2abc603c845e082fab128a02c1235b0990039826139e0d8254e9663d9