d9c6ba096bc85554d5e3adff83edb5c97c179bd28f21bff3c4969786be9daa36

Analysis

max time kernel
121s
max time network
126s
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

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General

Target

koalahook-main/koalahook.py
Size

11KB
MD5

119bcef66ce9ecfdd53d29fe61d7d57a
SHA1

61adb83679b95f8b8093f8e6132d5d725919f4b4
SHA256

83a757a698e7e478d67365af75781af1cea336cdfbea7026fba6183b6e8906ea
SHA512

830045c85e2df03809c140ce78874ced5e1bbc13c9d6d4f4881b3243b7d6480b78148eceb7d9a6e47ec9bb8b614a3f4ec8c59d6421337e21f028d1d7d4f7a0f2
SSDEEP

192:dMiNyNADAnFcaA8AcTg/TYGQIiRw+Z+Y+Y+U1aXeFNDtIrmNtn:dHoAD2maA81Tg/TYGRiRw+IY+G1tFh1F

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_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
2328	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2328	AcroRd32.exe
2328	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 1532	2236	cmd.exe	31
PID 2236 wrote to memory of 1532	2236	cmd.exe	31
PID 2236 wrote to memory of 1532	2236	cmd.exe	31
PID 1532 wrote to memory of 2328	1532	rundll32.exe	32
PID 1532 wrote to memory of 2328	1532	rundll32.exe	32
PID 1532 wrote to memory of 2328	1532	rundll32.exe	32
PID 1532 wrote to memory of 2328	1532	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\koalahook-main\koalahook.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- 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\koalahook.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1532
- - 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\koalahook.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
2602fc33f2f3230b66c2dd324529ff58

SHA1
ebfc294c68db7c2751c0636aa33cf40212acff3f

SHA256
7527edd2f0beb965bb99873b97e8376d1765ca2ead0e9e2f65f0acb63b37b092

SHA512
c6f931372042251a402365ea2bd3d3fa41100b4bae9aeba70b1c1fd176182e18d0b2f34b7868a556c7070bc842ef23020d3dc30a9b13ec5ff9db5fb02b438dd2

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