645e274fec3723d065308f9b16b33392ed7f51fbd5ffc3c00806c2efafb08b65

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 11:34

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General

Target

internal/extensions/CNativeReg.lua
Size

3KB
MD5

6b75b1d3f480dcf226ebacff62d35165
SHA1

b170d5079a507e9f9fd918ba993498cecb5b69b8
SHA256

20298293eaf7060ea4cf99a5b2e790471431166fe618b1032719b01d5d00adc5
SHA512

4a0ebd56072f0415f79b79c1ccad3b1acf334a9e8e07e671b27297a9eb6dda1ae34e7c44dc98029f4e8da8e43fe33fcf560fc098d2267312182576f7461e871d

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-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.lua	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.lua\ = "lua_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lua_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lua_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_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-1-5-21-940600906-3464502421-4240639183-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lua_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lua_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\lua_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2816	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2816	AcroRd32.exe
2816	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 2680	1812	cmd.exe	31
PID 1812 wrote to memory of 2680	1812	cmd.exe	31
PID 1812 wrote to memory of 2680	1812	cmd.exe	31
PID 2680 wrote to memory of 2816	2680	rundll32.exe	32
PID 2680 wrote to memory of 2816	2680	rundll32.exe	32
PID 2680 wrote to memory of 2816	2680	rundll32.exe	32
PID 2680 wrote to memory of 2816	2680	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\internal\extensions\CNativeReg.lua
1⤵
- Suspicious use of WriteProcessMemory
PID:1812
- 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\CNativeReg.lua
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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\CNativeReg.lua"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2816

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
4ca8b6ea3313f80b067ae62f5b7ca5bd

SHA1
93dc57853206fc16f136705aed31f4daed2f1b94

SHA256
32fb05bec17f763107a783b626089b37fb21a1511afec9b9a5b580779bdb9443

SHA512
f99f0b220dc805b4b6d4f42abb2a3cbe1a411025e3f1657ca9420c120beae97a86b28321ec1ef9997f8aebb5b01922e6ac8b1e0aa9d32365b1fdf7a08f2e717d

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