Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
19-06-2024 06:20
Behavioral task
behavioral1
Sample
overlay_3.0.4.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
overlay_3.0.4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
bwstats.pyc
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
bwstats.pyc
Resource
win10v2004-20240508-en
General
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Target
bwstats.pyc
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Size
37KB
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MD5
f7f90fb79f9d96545e66b982b11784b9
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SHA1
a9eec1150ca723fa0dc3ac3488263749850b9597
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SHA256
3bc98e6f25d4416afaedff5d79567dec4c29b445d4ba786588ec20efd6cac668
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SHA512
0e632109286a1851fc81ecb625345edb273bcd74760947f100937e63b93bf797ed99e5831adde120ab550b30d289fcdc85ea834be05d05cdacc3d2885b7dfdda
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SSDEEP
768:f2czKTz+XmercYg6hrmRiPE3VBc7HN2MHiYhpWJfYxHk2kqDAfBPWL9snvI5aMj9:f2czKTz+XmerXg6hrmAPE3L0H8MHiYh/
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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pyc rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
AcroRd32.exepid process 2784 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 2784 AcroRd32.exe 2784 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2156 wrote to memory of 2916 2156 cmd.exe rundll32.exe PID 2156 wrote to memory of 2916 2156 cmd.exe rundll32.exe PID 2156 wrote to memory of 2916 2156 cmd.exe rundll32.exe PID 2916 wrote to memory of 2784 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2784 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2784 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2784 2916 rundll32.exe AcroRd32.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\bwstats.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:2156 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\bwstats.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2916 -
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\bwstats.pyc"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2784
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5dd10574ff3e2e881643968c978aa511f
SHA1e1541ab3b36d7ccc817ad3341e86a40f1007ad54
SHA256cd306e17b23b4dc1f5d76855a7f892ffee9df356438cd1aa54be712b3559ddab
SHA512f1b8492746343382d0b8cdb2c3af70566d660f19382b9e40bca01b6998eee58d0874f7e727860413cfacfa6937d93b2a95a3dc57362a55f16f18b1341d8daf9b