Analysis
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max time kernel
82s -
max time network
32s -
platform
windows7_x64 -
resource
win7-20230703-en -
resource tags
arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system -
submitted
10-07-2023 11:44
Static task
static1
Behavioral task
behavioral1
Sample
leading.7z
Resource
win7-20230703-en
Behavioral task
behavioral2
Sample
leading.7z
Resource
win10v2004-20230703-en
General
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Target
leading.7z
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Size
71.0MB
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MD5
d0200d5121aeee62b2c10b2dbb12d2df
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SHA1
7d1013f2756e27e710a698e25e2f1daba46bd418
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SHA256
ec27626fe895f819d7e713e26452947e646e152964f43dfc629aec1b6406c70a
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SHA512
d90bdb675c33610c66e87e914d33bdd2c01c3880d5149454f326a167f8e8de0aa610fb92a0e205d0fe79807f4d57a3e736ee0e35e3fee0eb8ed151a29e284434
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SSDEEP
1572864:1fKH64k+FBdIxSDo+ERfSvz8syZHwAOCcjcBh7wq4aGnJhdKobOxIU9/:1fKa4kKdIRRK7yZHwAObcv1GJTuxIU
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 9 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.7z\ = "7z_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file\shell\Read rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.7z rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\7z_auto_file\shell rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
AcroRd32.exepid process 2404 AcroRd32.exe 2404 AcroRd32.exe 2404 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2060 wrote to memory of 1848 2060 cmd.exe rundll32.exe PID 2060 wrote to memory of 1848 2060 cmd.exe rundll32.exe PID 2060 wrote to memory of 1848 2060 cmd.exe rundll32.exe PID 1848 wrote to memory of 2404 1848 rundll32.exe AcroRd32.exe PID 1848 wrote to memory of 2404 1848 rundll32.exe AcroRd32.exe PID 1848 wrote to memory of 2404 1848 rundll32.exe AcroRd32.exe PID 1848 wrote to memory of 2404 1848 rundll32.exe AcroRd32.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\leading.7z1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\leading.7z2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\leading.7z"3⤵
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEventsFilesize
3KB
MD588b60017370e76715195f099e1e425ab
SHA10697748710395f58a26c55b9baf186dd08ae3e89
SHA256441d8d7f2b2cb2bb048f726ef2ce7586ce594797c852296f5931600e249a0a9e
SHA5125074dcaf5b688ff68b984776e21fb3359e5d9545ba5facc105d3ffc09a626285c3e808e369998001998f4f021cc85e2ad5b8bc6c3524c842100b7f4a27f09778