Overview
overview
10Static
static
10SilverBull...til.py
windows7-x64
3SilverBull...til.py
windows10-2004-x64
3SilverBull...ion.py
windows7-x64
3SilverBull...ion.py
windows10-2004-x64
3SilverBull...ate.py
windows7-x64
3SilverBull...ate.py
windows10-2004-x64
3SilverBull...est.py
windows7-x64
3SilverBull...est.py
windows10-2004-x64
3SilverBull...ing.py
windows7-x64
3SilverBull...ing.py
windows10-2004-x64
3SilverBull...t__.py
windows7-x64
3SilverBull...t__.py
windows10-2004-x64
3SilverBull...rds.py
windows7-x64
3SilverBull...rds.py
windows10-2004-x64
3SilverBull...ser.py
windows7-x64
3SilverBull...ser.py
windows10-2004-x64
3SilverBull...ddr.py
windows7-x64
3SilverBull...ddr.py
windows10-2004-x64
3SilverBull...ase.py
windows7-x64
3SilverBull...ase.py
windows10-2004-x64
3SilverBull...ime.py
windows7-x64
3SilverBull...ime.py
windows10-2004-x64
3SilverBull...set.py
windows7-x64
3SilverBull...set.py
windows10-2004-x64
3SilverBull...ger.py
windows7-x64
3SilverBull...ger.py
windows10-2004-x64
3SilverBull...ers.py
windows7-x64
3SilverBull...ers.py
windows10-2004-x64
3SilverBull...ors.py
windows7-x64
3SilverBull...ors.py
windows10-2004-x64
3SilverBull...ser.py
windows7-x64
3SilverBull...ser.py
windows10-2004-x64
3Analysis
-
max time kernel
117s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-10-2024 11:36
Behavioral task
behavioral1
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/util.py
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/util.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/version.py
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/version.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/versionpredicate.py
Resource
win7-20240729-en
Behavioral task
behavioral6
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/distutils/versionpredicate.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/doctest.py
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/doctest.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/dummy_threading.py
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/dummy_threading.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/__init__.py
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/__init__.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_encoded_words.py
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_encoded_words.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_header_value_parser.py
Resource
win7-20240903-en
Behavioral task
behavioral16
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_header_value_parser.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_parseaddr.py
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_parseaddr.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_policybase.py
Resource
win7-20240903-en
Behavioral task
behavioral20
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/_policybase.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/base64mime.py
Resource
win7-20240729-en
Behavioral task
behavioral22
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/base64mime.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/charset.py
Resource
win7-20240903-en
Behavioral task
behavioral24
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/charset.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/contentmanager.py
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/contentmanager.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/encoders.py
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/encoders.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/errors.py
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/errors.py
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/feedparser.py
Resource
win7-20240903-en
Behavioral task
behavioral32
Sample
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/feedparser.py
Resource
win10v2004-20240802-en
General
-
Target
SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/doctest.py
-
Size
104KB
-
MD5
f9cf4c1e521bae3919a1c48b91c63e56
-
SHA1
e29f805043cd126ff46615bea73a8961b7b98b88
-
SHA256
b552a5bc0a6262d2ad4edb5b7022f5cad15de9a35f144978184260d2ee447a62
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SHA512
6266dd639efff83b4f899f413bf796626b82e77b5e33edee4afc3186e845ba0ba787259ad5d079fff4c1f4ed1a584f8288d12c7cd5f211cf718a1b89087d4866
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SSDEEP
3072:k31db9Wi0veFhoWYsioJT0a+/Fj9sjQeO9xnVUaH8e+t0T+2m:odb9Wi0veFh7YsioJT0a+/Fj9sjQeO9M
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2992 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2992 AcroRd32.exe 2992 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2528 wrote to memory of 2800 2528 cmd.exe 31 PID 2528 wrote to memory of 2800 2528 cmd.exe 31 PID 2528 wrote to memory of 2800 2528 cmd.exe 31 PID 2800 wrote to memory of 2992 2800 rundll32.exe 33 PID 2800 wrote to memory of 2992 2800 rundll32.exe 33 PID 2800 wrote to memory of 2992 2800 rundll32.exe 33 PID 2800 wrote to memory of 2992 2800 rundll32.exe 33
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\doctest.py"1⤵
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\doctest.py2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2800 -
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\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\doctest.py"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2992
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD591d4245ce701ee0d44234d76eddc84b0
SHA15df40bbb40e52f7c8435c3e6f95f64fd0b780172
SHA256c1bc996f2f41107ba36d13d107abfd7fe7df8430ac88ee7cc4ff716c72fc934d
SHA5128729fa368ea3af131026eff251caa5b7ba61cc4c8377a87468166d903af14659545f026ce7f675f0c5021bfaa668b1f56b0c8ab0739b521d548422a852806936