Overview
overview
3Static
static
1biosdrain-master.zip
windows7-x64
1biosdrain-master.zip
windows10-2004-x64
1biosdrain-...format
windows7-x64
3biosdrain-...format
windows10-2004-x64
3biosdrain-...se.yml
windows7-x64
3biosdrain-...se.yml
windows10-2004-x64
3biosdrain-...ld.yml
windows7-x64
3biosdrain-...ld.yml
windows10-2004-x64
3biosdrain-...ignore
windows7-x64
3biosdrain-...ignore
windows10-2004-x64
3biosdrain-...NSE.md
windows7-x64
3biosdrain-...NSE.md
windows10-2004-x64
3biosdrain-...kefile
windows7-x64
1biosdrain-...kefile
windows10-2004-x64
1biosdrain-...Init.c
windows7-x64
3biosdrain-...Init.c
windows10-2004-x64
3biosdrain-...Init.h
windows7-x64
3biosdrain-...Init.h
windows10-2004-x64
3biosdrain-...DME.md
windows7-x64
3biosdrain-...DME.md
windows10-2004-x64
3biosdrain-...rain.c
windows7-x64
3biosdrain-...rain.c
windows10-2004-x64
3biosdrain-...nfig.h
windows7-x64
3biosdrain-...nfig.h
windows10-2004-x64
3biosdrain-...dump.c
windows7-x64
3biosdrain-...dump.c
windows10-2004-x64
3biosdrain-...dump.h
windows7-x64
3biosdrain-...dump.h
windows10-2004-x64
3biosdrain-...ignore
windows7-x64
3biosdrain-...ignore
windows10-2004-x64
3biosdrain-...name.c
windows7-x64
3biosdrain-...name.c
windows10-2004-x64
3Analysis
-
max time kernel
121s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
13-06-2024 13:15
Static task
static1
Behavioral task
behavioral1
Sample
biosdrain-master.zip
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
biosdrain-master.zip
Resource
win10v2004-20240611-en
Behavioral task
behavioral3
Sample
biosdrain-master/.clang-format
Resource
win7-20240611-en
Behavioral task
behavioral4
Sample
biosdrain-master/.clang-format
Resource
win10v2004-20240611-en
Behavioral task
behavioral5
Sample
biosdrain-master/.github/workflows/master-release.yml
Resource
win7-20240611-en
Behavioral task
behavioral6
Sample
biosdrain-master/.github/workflows/master-release.yml
Resource
win10v2004-20240611-en
Behavioral task
behavioral7
Sample
biosdrain-master/.github/workflows/pr-build.yml
Resource
win7-20240419-en
Behavioral task
behavioral8
Sample
biosdrain-master/.github/workflows/pr-build.yml
Resource
win10v2004-20240611-en
Behavioral task
behavioral9
Sample
biosdrain-master/.gitignore
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
biosdrain-master/.gitignore
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
biosdrain-master/LICENSE.md
Resource
win7-20240611-en
Behavioral task
behavioral12
Sample
biosdrain-master/LICENSE.md
Resource
win10v2004-20240611-en
Behavioral task
behavioral13
Sample
biosdrain-master/Makefile
Resource
win7-20240508-en
Behavioral task
behavioral14
Sample
biosdrain-master/Makefile
Resource
win10v2004-20240611-en
Behavioral task
behavioral15
Sample
biosdrain-master/OSDInit.c
Resource
win7-20240220-en
Behavioral task
behavioral16
Sample
biosdrain-master/OSDInit.c
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
biosdrain-master/OSDInit.h
Resource
win7-20240611-en
Behavioral task
behavioral18
Sample
biosdrain-master/OSDInit.h
Resource
win10v2004-20240611-en
Behavioral task
behavioral19
Sample
biosdrain-master/README.md
Resource
win7-20240611-en
Behavioral task
behavioral20
Sample
biosdrain-master/README.md
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
biosdrain-master/biosdrain.c
Resource
win7-20240221-en
Behavioral task
behavioral22
Sample
biosdrain-master/biosdrain.c
Resource
win10v2004-20240508-en
Behavioral task
behavioral23
Sample
biosdrain-master/config.h
Resource
win7-20240419-en
Behavioral task
behavioral24
Sample
biosdrain-master/config.h
Resource
win10v2004-20240611-en
Behavioral task
behavioral25
Sample
biosdrain-master/dump.c
Resource
win7-20240508-en
Behavioral task
behavioral26
Sample
biosdrain-master/dump.c
Resource
win10v2004-20240508-en
Behavioral task
behavioral27
Sample
biosdrain-master/dump.h
Resource
win7-20240611-en
Behavioral task
behavioral28
Sample
biosdrain-master/dump.h
Resource
win10v2004-20240611-en
Behavioral task
behavioral29
Sample
biosdrain-master/irx/.gitignore
Resource
win7-20240611-en
Behavioral task
behavioral30
Sample
biosdrain-master/irx/.gitignore
Resource
win10v2004-20240508-en
Behavioral task
behavioral31
Sample
biosdrain-master/modelname.c
Resource
win7-20240611-en
Behavioral task
behavioral32
Sample
biosdrain-master/modelname.c
Resource
win10v2004-20240226-en
General
-
Target
biosdrain-master/.github/workflows/master-release.yml
-
Size
1KB
-
MD5
5d9759aee8081eafdd291bb7f0740bc8
-
SHA1
3c108b2f2fd87fdd214e92c59507cc0298791526
-
SHA256
70604aea0271efa31801a63aeeda50578bd294138db7b63adb39336c526f3972
-
SHA512
b634565fed162b97dbd0b18127b0a2ec3935179d7db594738bd87fe1fe6d754b4242d1c302acdeba3e473c20be259e796b157d399f969571992a0dbf42aa2a31
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.yml rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.yml\ = "yml_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\yml_auto_file\ rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2752 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2752 AcroRd32.exe 2752 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2328 2196 cmd.exe 29 PID 2196 wrote to memory of 2328 2196 cmd.exe 29 PID 2196 wrote to memory of 2328 2196 cmd.exe 29 PID 2328 wrote to memory of 2752 2328 rundll32.exe 30 PID 2328 wrote to memory of 2752 2328 rundll32.exe 30 PID 2328 wrote to memory of 2752 2328 rundll32.exe 30 PID 2328 wrote to memory of 2752 2328 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\biosdrain-master\.github\workflows\master-release.yml1⤵
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\biosdrain-master\.github\workflows\master-release.yml2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2328 -
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\biosdrain-master\.github\workflows\master-release.yml"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2752
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD50814d2a0f9687164507d565d63b0242d
SHA1a0625594cb078b5732904cb8bf2d8d8a68bc376c
SHA256b4c77de47373352304081e17417e12e48ad33b93d3b5105b593a92ac4ee81184
SHA512ce2083c6dc33c89c8817610d19dbb3af8ceca37544e5a3d2df3630cadea7c6c3d5ea894c079dabeff11d0c3a60ca76044f5f22dc5d7ee1ac380771d86cbc83f4