Overview
overview
3Static
static
1CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...sample
windows7-x64
3CVE-2023-3...oit.py
windows7-x64
3CVE-2023-3...pt.bat
windows7-x64
1Analysis
-
max time kernel
18s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
08-05-2024 08:58
Static task
static1
Behavioral task
behavioral1
Sample
CVE-2023-38831/.git/hooks/applypatch-msg.sample
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
CVE-2023-38831/.git/hooks/commit-msg.sample
Resource
win7-20240221-en
Behavioral task
behavioral3
Sample
CVE-2023-38831/.git/hooks/fsmonitor-watchman.sample
Resource
win7-20240419-en
Behavioral task
behavioral4
Sample
CVE-2023-38831/.git/hooks/post-update.sample
Resource
win7-20240220-en
Behavioral task
behavioral5
Sample
CVE-2023-38831/.git/hooks/pre-applypatch.sample
Resource
win7-20240215-en
Behavioral task
behavioral6
Sample
CVE-2023-38831/.git/hooks/pre-commit.sample
Resource
win7-20240221-en
Behavioral task
behavioral7
Sample
CVE-2023-38831/.git/hooks/pre-merge-commit.sample
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
CVE-2023-38831/.git/hooks/pre-push.sample
Resource
win7-20240221-en
Behavioral task
behavioral9
Sample
CVE-2023-38831/.git/hooks/pre-rebase.sample
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
CVE-2023-38831/.git/hooks/pre-receive.sample
Resource
win7-20240215-en
Behavioral task
behavioral11
Sample
CVE-2023-38831/.git/hooks/prepare-commit-msg.sample
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
CVE-2023-38831/.git/hooks/push-to-checkout.sample
Resource
win7-20240221-en
Behavioral task
behavioral13
Sample
CVE-2023-38831/.git/hooks/update.sample
Resource
win7-20240419-en
Behavioral task
behavioral14
Sample
CVE-2023-38831/exploit.py
Resource
win7-20231129-en
Behavioral task
behavioral15
Sample
CVE-2023-38831/script.bat
Resource
win7-20240220-en
General
-
Target
CVE-2023-38831/.git/hooks/post-update.sample
-
Size
189B
-
MD5
2b7ea5cee3c49ff53d41e00785eb974c
-
SHA1
b614c2f63da7dca9f1db2e7ade61ef30448fc96c
-
SHA256
81765af2daef323061dcbc5e61fc16481cb74b3bac9ad8a174b186523586f6c5
-
SHA512
473ad124642571656276bf83b9ff63ab1804d3c23a5bdae52391c6f70a894849ac60c10c9d31deff3938922ce83b68b1e60c11592bbf7ea503f4acd39968cefa
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 9 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.sample rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.sample\ = "sample_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 2568 AcroRd32.exe 2568 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2820 wrote to memory of 2640 2820 cmd.exe rundll32.exe PID 2820 wrote to memory of 2640 2820 cmd.exe rundll32.exe PID 2820 wrote to memory of 2640 2820 cmd.exe rundll32.exe PID 2640 wrote to memory of 2568 2640 rundll32.exe AcroRd32.exe PID 2640 wrote to memory of 2568 2640 rundll32.exe AcroRd32.exe PID 2640 wrote to memory of 2568 2640 rundll32.exe AcroRd32.exe PID 2640 wrote to memory of 2568 2640 rundll32.exe AcroRd32.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\post-update.sample1⤵
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\post-update.sample2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2640 -
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\CVE-2023-38831\.git\hooks\post-update.sample"3⤵
- Suspicious use of SetWindowsHookEx
PID:2568
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEventsFilesize
3KB
MD57b4d70e356005ab05dbab28126fcc636
SHA1d25984cc62377fd9f7e765f83815b9a87edd5222
SHA256f7c95fe91246ef22528ffc3ba619e14f3085f340d4265df62bca57b07d4f70ed
SHA5121ba6c338eb1783420c2c4e1e9c0a0a4f517c0836d312f010ffe2f05fcd61012d5a1e48a83d92d8ce6e029bbbbb7ede514084f628658ea8248ae5e009a9b3c9b8