Overview
overview
8Static
static
8Builder.bat
windows7-x64
1Builder.bat
windows10-2004-x64
1Components...OBF.py
windows7-x64
3Components...OBF.py
windows10-2004-x64
3Components/loader.py
windows7-x64
3Components/loader.py
windows10-2004-x64
3Components...ess.py
windows7-x64
3Components...ess.py
windows10-2004-x64
3Components/process.py
windows7-x64
3Components/process.py
windows10-2004-x64
3Components/rar.exe
windows7-x64
3Components/rar.exe
windows10-2004-x64
3Components/run.bat
windows7-x64
1Components/run.bat
windows10-2004-x64
1Components...ief.py
windows7-x64
3Components...ief.py
windows10-2004-x64
3Components/stub.py
windows7-x64
3Components/stub.py
windows10-2004-x64
3Components/upx.exe
windows7-x64
7Components/upx.exe
windows10-2004-x64
7Extras/unb...tes.py
windows7-x64
3Extras/unb...tes.py
windows10-2004-x64
3env/Script...xa.dll
windows7-x64
1env/Script...xa.dll
windows10-2004-x64
1env/Script...lt.exe
windows7-x64
1env/Script...lt.exe
windows10-2004-x64
1env/Script...64.exe
windows7-x64
1env/Script...64.exe
windows10-2004-x64
1env/Script...En.exe
windows7-x64
1env/Script...En.exe
windows10-2004-x64
1env/Script...64.exe
windows7-x64
1env/Script...64.exe
windows10-2004-x64
1Analysis
-
max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
07-06-2024 00:57
Behavioral task
behavioral1
Sample
Builder.bat
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
Builder.bat
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
Components/BlankOBF.py
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
Components/BlankOBF.py
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
Components/loader.py
Resource
win7-20240508-en
Behavioral task
behavioral6
Sample
Components/loader.py
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
Components/postprocess.py
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
Components/postprocess.py
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
Components/process.py
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
Components/process.py
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
Components/rar.exe
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
Components/rar.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral13
Sample
Components/run.bat
Resource
win7-20240508-en
Behavioral task
behavioral14
Sample
Components/run.bat
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
Components/sigthief.py
Resource
win7-20240221-en
Behavioral task
behavioral16
Sample
Components/sigthief.py
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
Components/stub.py
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
Components/stub.py
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
Components/upx.exe
Resource
win7-20240508-en
Behavioral task
behavioral20
Sample
Components/upx.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
Extras/unblock_sites.py
Resource
win7-20240220-en
Behavioral task
behavioral22
Sample
Extras/unblock_sites.py
Resource
win10v2004-20240426-en
Behavioral task
behavioral23
Sample
env/Scripts/dist/7zxa.dll
Resource
win7-20231129-en
Behavioral task
behavioral24
Sample
env/Scripts/dist/7zxa.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral25
Sample
env/Scripts/dist/Default.exe
Resource
win7-20240221-en
Behavioral task
behavioral26
Sample
env/Scripts/dist/Default.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral27
Sample
env/Scripts/dist/Default64.exe
Resource
win7-20240508-en
Behavioral task
behavioral28
Sample
env/Scripts/dist/Default64.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral29
Sample
env/Scripts/dist/DefaultEn.exe
Resource
win7-20240508-en
Behavioral task
behavioral30
Sample
env/Scripts/dist/DefaultEn.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral31
Sample
env/Scripts/dist/DefaultEn64.exe
Resource
win7-20240221-en
Behavioral task
behavioral32
Sample
env/Scripts/dist/DefaultEn64.exe
Resource
win10v2004-20240226-en
General
-
Target
Components/BlankOBF.py
-
Size
5KB
-
MD5
7a8c07085db6d780537154ba26a42a5e
-
SHA1
0bb6856624884bf154be7cc8df52d3214dea7d9f
-
SHA256
ca8445cd8593ff89d2a406e43fa114f612fe10835d80cb43b4341c390f8b5eb0
-
SHA512
16d91226b929128c447ee04c00e9eede44e6a5daf9691a9d45ff645da053748594734268ae45a4521f0329bf8116ed16c149a9edfaf74d923e64ffec5271c706
-
SSDEEP
96:Gr54cd62hK9FFZ48PuCQYBX5oQL6oUMOQcL:GP6Us4B8JoQLBsQcL
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 Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.py\ = "py_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_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\.py rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2684 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2684 AcroRd32.exe 2684 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1260 wrote to memory of 2640 1260 cmd.exe 29 PID 1260 wrote to memory of 2640 1260 cmd.exe 29 PID 1260 wrote to memory of 2640 1260 cmd.exe 29 PID 2640 wrote to memory of 2684 2640 rundll32.exe 30 PID 2640 wrote to memory of 2684 2640 rundll32.exe 30 PID 2640 wrote to memory of 2684 2640 rundll32.exe 30 PID 2640 wrote to memory of 2684 2640 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Components\BlankOBF.py1⤵
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Components\BlankOBF.py2⤵
- 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\Components\BlankOBF.py"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2684
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD5a70e609335ba374cde87837a1960b782
SHA1aaa48a8421bf0eec20a29e4a059cc4618d0a185a
SHA2562657f6d078aa15ad079739521b2750a35babeaca97f9ea3e0dd0f9e2183cb5a7
SHA51209ddb53d8d86e2a444274902a93c9ca153152f71efbb9c44ddd76ada719aff3c63b393a175b820e075ddf23aed60362cace26615eb13c325d99c052e50b094b2