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
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-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/pr-build.yml
-
Size
871B
-
MD5
e4c38a00e3a83dfbba9488f9436d0007
-
SHA1
51a1970cb09d81f3c47df63c47913dafa57cc186
-
SHA256
62072d3a20521180cec4ab19d5d0dd7066d8e9fbb33622e30bd9c79bff5166b3
-
SHA512
519767a14e55fba3334aa5b866a21631207a1e5e8076a060629dc322d60ac6d729a125f04a5cef6fe9c3eece27ecc1a8b9100da5e2910b6c6db1c5209d00a620
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-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\yml_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_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-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\yml_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.yml rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.yml\ = "yml_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\yml_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\yml_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\yml_auto_file\shell\Read\command rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2176 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2176 AcroRd32.exe 2176 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2248 wrote to memory of 2744 2248 cmd.exe 29 PID 2248 wrote to memory of 2744 2248 cmd.exe 29 PID 2248 wrote to memory of 2744 2248 cmd.exe 29 PID 2744 wrote to memory of 2176 2744 rundll32.exe 30 PID 2744 wrote to memory of 2176 2744 rundll32.exe 30 PID 2744 wrote to memory of 2176 2744 rundll32.exe 30 PID 2744 wrote to memory of 2176 2744 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\biosdrain-master\.github\workflows\pr-build.yml1⤵
- Suspicious use of WriteProcessMemory
PID:2248 -
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\pr-build.yml2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2744 -
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\pr-build.yml"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2176
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD5d96b5bb64054c7e541fdd67878d76849
SHA14955f09eb5b4f151cc25233493948da587445029
SHA2560bec2ad68e4914d6b0a5363798f482723cc7b9684e94bd89d9e3bddec5a5459e
SHA5120a4a9d604804407c2480da35f3c94d9809fe13fd7036f4523d256e12925765e2718fafcde33c6545538f00470597f1c3bdd6d3f2f24b86cae5a1f90a7d8b336d