dcfe168ca869fc3631de17fe0c36df34a43be0b85a34c06df933ff5b0f5ec21c

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 19:17

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General

Target

BO2 TU18/en_patch_ui_loc_zm.ff
Size

1KB
MD5

51ea28c201e166fa38e3ac26870171a8
SHA1

60a126b739d689a74f77c51d9673152208009637
SHA256

dafd6e1edffdce323f39ea4c8ec22299d6d6fb919645faf15373cce5b482b0d5
SHA512

f4514bad567dd7f979599539b4f54051d02c0f8922bb523e8a976fd9eabfbff4931fd260d8aa9b976c55577714cb30369d800896f0b9464c81b8b44831931789

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.ff	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.ff\ = "ff_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\ff_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
2436	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2436	AcroRd32.exe
2436	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2524	2092	cmd.exe	29
PID 2092 wrote to memory of 2524	2092	cmd.exe	29
PID 2092 wrote to memory of 2524	2092	cmd.exe	29
PID 2524 wrote to memory of 2436	2524	rundll32.exe	30
PID 2524 wrote to memory of 2436	2524	rundll32.exe	30
PID 2524 wrote to memory of 2436	2524	rundll32.exe	30
PID 2524 wrote to memory of 2436	2524	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\BO2 TU18\en_patch_ui_loc_zm.ff"
1⤵
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BO2 TU18\en_patch_ui_loc_zm.ff
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2524
- - 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\BO2 TU18\en_patch_ui_loc_zm.ff"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2436

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
2efe8ebce21cd56ebf86bc2750758b6b

SHA1
b153092f739a3281db55e6a4c73c8b07f5060697

SHA256
18c56711665678a082051881c364ad4b1e352cc098a287b783421eb36cf83da6

SHA512
89a23af0195be49d99d52390f687530147ee82eb6df6755427ed90974a2565b2ac2537a01594630aad6aa91f48ae32190ea0cc19e697611b8f857ce570698ed2

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