Analysis
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max time kernel
118s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
28/05/2024, 17:57
Static task
static1
Behavioral task
behavioral1
Sample
Skuller.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Skuller.exe
Resource
win10v2004-20240226-en
General
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Target
Skuller.exe
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Size
23.0MB
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MD5
ef37216c7eba4c507cb74ceff22c460e
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SHA1
86a6f0245fc3db061c1b1e28e67c211c94590a47
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SHA256
ffebcd96d662439491f157860b8e0123b4577b8713cc3ff1f118e500215d3f06
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SHA512
a984f81aa33c54f7d8386fba90c1bedee59e272096555263a2aa0f6a74c74b7422b87111caaebd305d3c02e95f1a5b67b0eb0beffd7c1ff5db82e17b247c4314
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SSDEEP
393216:JHhhmKIEge9DytYtaUI7GSLThU7cZIncfGCsGZRCWoyOecw8XxQmIU:pynEgMetYm7/LTewZIcunGZdrOecthI
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2912 main.exe -
Loads dropped DLL 2 IoCs
pid Process 2696 Skuller.exe 2912 main.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2696 wrote to memory of 2912 2696 Skuller.exe 29 PID 2696 wrote to memory of 2912 2696 Skuller.exe 29 PID 2696 wrote to memory of 2912 2696 Skuller.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\Skuller.exe"C:\Users\Admin\AppData\Local\Temp\Skuller.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Users\Admin\AppData\Local\Temp\onefile_2696_133613926371154000\main.exe"C:\Users\Admin\AppData\Local\Temp\Skuller.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2912
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5.5MB
MD59a24c8c35e4ac4b1597124c1dcbebe0f
SHA1f59782a4923a30118b97e01a7f8db69b92d8382a
SHA256a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7
SHA5129d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b
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Filesize
45.1MB
MD561bf828ec19c946a1f3dcd69e32fd9cc
SHA13b79e3729535f011d1a2c195430930798623acfb
SHA256447886f321aa23a433a73546e63d10b195f8a2f88cb9ffb0c5a00c8851a23310
SHA512c549561dfce8e2fa0c21bce9e2696c340350558db09f1e5c77b52462040f82f93f67d1d78cbda8758bac6560da5858e5d855f445eebf9a159c2fe29d1ca01877