dcfe168ca869fc3631de17fe0c36df34a43be0b85a34c06df933ff5b0f5ec21c

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 19:17

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General

Target

BO2 TU18/frontend_patch.ff
Size

123KB
MD5

0c98ca7fe1d8210b2d6982600421c254
SHA1

f7013885673dfe9e7fdabd681f7140b7341ff9b3
SHA256

1ce09ea7a40b0d1607deef79f6ef9379945459b21da805d3f2b3474a4df1169b
SHA512

d8dad0d5c7278c9440b7443af72bef96e1c43bb84cfeda8e2d00b1793155e308a47a1e7d22d6a857a3a3f5e397874c2533b78e0c8dc09a9c51604121e10aeb63
SSDEEP

3072:hFrdDLRx7AHUeaiq/gi1lTo0tx00TGoKU1Ov68qj5/:jFbXiq/gIocx006oKSR8q

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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\ff_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.ff	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\ff_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\ff_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.ff\ = "ff_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\ff_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\ff_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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
2708	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2708	AcroRd32.exe
2708	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2420	2748	cmd.exe	29
PID 2748 wrote to memory of 2420	2748	cmd.exe	29
PID 2748 wrote to memory of 2420	2748	cmd.exe	29
PID 2420 wrote to memory of 2708	2420	rundll32.exe	30
PID 2420 wrote to memory of 2708	2420	rundll32.exe	30
PID 2420 wrote to memory of 2708	2420	rundll32.exe	30
PID 2420 wrote to memory of 2708	2420	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\BO2 TU18\frontend_patch.ff"
1⤵
- Suspicious use of WriteProcessMemory
PID:2748
- 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\frontend_patch.ff
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2420
- - 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\frontend_patch.ff"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2708

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
d519de1416b38631da063dafd8fbe025

SHA1
c257f98e97f5dd7fd719536b0ba32c20a914f2b6

SHA256
f9caf7d7215f4dcdf50af8f65c0cda368168ececffde052e6e825fd620caabb0

SHA512
df2f8aa5d8a33b647eca4c53e46445b8e1e8136fb6448fa47d0659f36fbecc6869135aec9fa60942fbde37cbad16826ec0578a8e1dd348e30fa2bca172ea3dd9

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