Overview
overview
3Static
static
1koalahook-main.zip
windows7-x64
1koalahook-main.zip
windows10-2004-x64
1koalahook-...ignore
windows7-x64
3koalahook-...ignore
windows10-2004-x64
3koalahook-...DME.md
windows7-x64
3koalahook-...DME.md
windows10-2004-x64
3koalahook-...ook.py
windows7-x64
3koalahook-...ook.py
windows10-2004-x64
3koalahook-...ts.txt
windows7-x64
1koalahook-...ts.txt
windows10-2004-x64
1koalahook-...un.bat
windows7-x64
1koalahook-...un.bat
windows10-2004-x64
1koalahook-...NSE.md
windows7-x64
3koalahook-...NSE.md
windows10-2004-x64
3koalahook-...RMS.md
windows7-x64
3koalahook-...RMS.md
windows10-2004-x64
3koalahook-...in.png
windows7-x64
3koalahook-...in.png
windows10-2004-x64
3koalahook-...ge.png
windows7-x64
3koalahook-...ge.png
windows10-2004-x64
3koalahook-...in.png
windows7-x64
3koalahook-...in.png
windows10-2004-x64
3Analysis
-
max time kernel
117s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
19-04-2024 22:30
Static task
static1
Behavioral task
behavioral1
Sample
koalahook-main.zip
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
koalahook-main.zip
Resource
win10v2004-20240412-en
Behavioral task
behavioral3
Sample
koalahook-main/.gitignore
Resource
win7-20240215-en
Behavioral task
behavioral4
Sample
koalahook-main/.gitignore
Resource
win10v2004-20240412-en
Behavioral task
behavioral5
Sample
koalahook-main/README.md
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
koalahook-main/README.md
Resource
win10v2004-20240412-en
Behavioral task
behavioral7
Sample
koalahook-main/koalahook.py
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
koalahook-main/koalahook.py
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
koalahook-main/requirements.txt
Resource
win7-20240220-en
Behavioral task
behavioral10
Sample
koalahook-main/requirements.txt
Resource
win10v2004-20240412-en
Behavioral task
behavioral11
Sample
koalahook-main/run.bat
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
koalahook-main/run.bat
Resource
win10v2004-20240412-en
Behavioral task
behavioral13
Sample
koalahook-main/src/license/LICENSE.md
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
koalahook-main/src/license/LICENSE.md
Resource
win10v2004-20240412-en
Behavioral task
behavioral15
Sample
koalahook-main/src/license/TERMS.md
Resource
win7-20240221-en
Behavioral task
behavioral16
Sample
koalahook-main/src/license/TERMS.md
Resource
win10v2004-20240412-en
Behavioral task
behavioral17
Sample
koalahook-main/src/preview/beforelogin.png
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
koalahook-main/src/preview/beforelogin.png
Resource
win10v2004-20240412-en
Behavioral task
behavioral19
Sample
koalahook-main/src/preview/image.png
Resource
win7-20231129-en
Behavioral task
behavioral20
Sample
koalahook-main/src/preview/image.png
Resource
win10v2004-20240412-en
Behavioral task
behavioral21
Sample
koalahook-main/src/preview/postlogin.png
Resource
win7-20240221-en
Behavioral task
behavioral22
Sample
koalahook-main/src/preview/postlogin.png
Resource
win10v2004-20240226-en
General
-
Target
koalahook-main/src/license/LICENSE.md
-
Size
34KB
-
MD5
02d4ea62d9fb26520eee03e3923515ce
-
SHA1
231aa27eb8d3ed016f074aa5afd302d2abf27db3
-
SHA256
6f1e622c82a380075843bb084a7ec3b1f1d12a4a02526d75e78b0924a860aa75
-
SHA512
3ce6b90b06934563b990b40cd1a56a08abdefc3e5546e32d20403164610a940d170b85851a05a270f173ca96823a0895bb61a0436645545cff032637d221ee59
-
SSDEEP
384:ZMRJzlQ0Lf8KnYz3ZlqXstCTyVqtGJEuzFrb3CNHroNjOK1gxuCfZDbQ9:ZSndSz3ZlqXOWoInuzx3Y8N3W9BD09
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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.md\ = "md_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.md rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2504 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2504 AcroRd32.exe 2504 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2024 wrote to memory of 2036 2024 cmd.exe 29 PID 2024 wrote to memory of 2036 2024 cmd.exe 29 PID 2024 wrote to memory of 2036 2024 cmd.exe 29 PID 2036 wrote to memory of 2504 2036 rundll32.exe 30 PID 2036 wrote to memory of 2504 2036 rundll32.exe 30 PID 2036 wrote to memory of 2504 2036 rundll32.exe 30 PID 2036 wrote to memory of 2504 2036 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\koalahook-main\src\license\LICENSE.md1⤵
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\koalahook-main\src\license\LICENSE.md2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2036 -
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\koalahook-main\src\license\LICENSE.md"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2504
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD52947a098ac63b4f636eb9eb78146aa8b
SHA1995c6587fd29bf56899d9b1daf2f2c17835e8154
SHA256e5759e104a99691b133913ae34f9abf06756453ef0d42b468591ad64d9e05019
SHA512e5e219e6c6f0a25de4d3f7c2c167437affd732509401b659b36e129f2f652e46015b00e30bc29acd222d6a40c49c3be4db9ea438261a336d3410b08d7644fc29