645e274fec3723d065308f9b16b33392ed7f51fbd5ffc3c00806c2efafb08b65

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 11:34

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General

Target

internal/extensions/CScriptThread.lua
Size

2KB
MD5

140fa886857b0ae6e7caf21019d55bd7
SHA1

8b0fd588739dd2c8321f59f2c125a7478e304357
SHA256

d9721aab78d7afa65ed289ae619ab06c6ca86f1bd1e30bd6f16bccbc5369518d
SHA512

0b88422b08c0f62adad6fc1ec955358ad18e71fd13095a9641ac0037d827af124fb4a64c9e9515d8b6a72f1dabc924d5b52b5c52fac06c06d1c68f2b42c17667

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-1-5-21-3450744190-3404161390-554719085-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.lua	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\.lua\ = "lua_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000_CLASSES\lua_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2756	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2756	AcroRd32.exe
2756	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2736	2144	cmd.exe	29
PID 2144 wrote to memory of 2736	2144	cmd.exe	29
PID 2144 wrote to memory of 2736	2144	cmd.exe	29
PID 2736 wrote to memory of 2756	2736	rundll32.exe	30
PID 2736 wrote to memory of 2756	2736	rundll32.exe	30
PID 2736 wrote to memory of 2756	2736	rundll32.exe	30
PID 2736 wrote to memory of 2756	2736	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\internal\extensions\CScriptThread.lua
1⤵
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\internal\extensions\CScriptThread.lua
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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\internal\extensions\CScriptThread.lua"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2756

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

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Downloads

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

Filesize
3KB

MD5
30c1ceed24677dc95513b9f06f051d50

SHA1
737643c45156bf9a5a8a1d61c1520e0369f1b875

SHA256
d8ba007c527b8cd749e3b532de06ff09b0df2800c7491234aebe709de43d3c47

SHA512
368c4f58be794965db38793d20cdd50d5a49a8e3320938e2ed1f383d1604846b952ce4cff3e929d76d63c028dd15437d4505dc3a0b240aa375e3419f982c9bca

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