dcfe168ca869fc3631de17fe0c36df34a43be0b85a34c06df933ff5b0f5ec21c

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 19:17

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General

Target

BO2 TU18/fr_patch_ui_loc_zm.ff
Size

1KB
MD5

59a75efeafeda6d1e819021871dd3995
SHA1

c8b70eb51bf09da5989b71d5a1ec4b4f8ada5dc1
SHA256

7035cd26a77d4227f7b7a0f149628be42ae53d4aff9a823cd593514982cee255
SHA512

5c8a77c2bcdc4edd3c1452a33ce76ec0ab6e4cd88d6a0d9647e656d528fdc18a6e2a90be49467c2528f9f6ab455dacaddac0eaf508badfae67f40480e2cf3aea

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\ff_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.ff	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.ff\ = "ff_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2440	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2440	AcroRd32.exe
2440	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2844	2484	cmd.exe	29
PID 2484 wrote to memory of 2844	2484	cmd.exe	29
PID 2484 wrote to memory of 2844	2484	cmd.exe	29
PID 2844 wrote to memory of 2440	2844	rundll32.exe	30
PID 2844 wrote to memory of 2440	2844	rundll32.exe	30
PID 2844 wrote to memory of 2440	2844	rundll32.exe	30
PID 2844 wrote to memory of 2440	2844	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\BO2 TU18\fr_patch_ui_loc_zm.ff"
1⤵
- Suspicious use of WriteProcessMemory
PID:2484
- 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\fr_patch_ui_loc_zm.ff
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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\fr_patch_ui_loc_zm.ff"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2440

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
5b91ee6daf4b32a8bd7b41b31584669f

SHA1
8e35af14e3b4d83e12ae4952f37dfbb8bac30f48

SHA256
3c8559e695abf5825f77c448b0f972c1b126df75b1c107bffd0e53705a553666

SHA512
8f2254f71bbfe15601eb716bda9ae866ef09d1e95d1785391479318aa3d1e23fa9867977d813c1c0caa871b730c4099f6235a4f85c303ee4c1cf0b2306ca07e9

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