56bacfb737076b0b10f9896ac124c2e8f83cb855f7b31ef5a95338b7529b3126

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/07/2024, 04:56

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General

Target

locales/bg.pak
Size

596KB
MD5

d9291d2f1e816471f691f37c5a4635a0
SHA1

201f26fff690b95f559d57866d7db519364ac27e
SHA256

4a7d229dbd7ca53bac0438d5705a8ecad9e33213f6752e58624da1b9e9cd571b
SHA512

074b46011bed5750dd49ec5e021b02850d11b235730c27bc2d0910a69f2f1d03c79dbe692b5dc34b7be28ab071b8af6c639151ebb10364f04b8acf4615c54270
SSDEEP

12288:w+DfVlY9dAs1aKUDpgaVVwsP86vmF0Z3SKN3YCcbIynMxJfu64K2zruSZpkVqU55:w+D9lY9dAs1aKUFAs0EZ3SKG/vMvu6p9

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-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_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 2240 wrote to memory of 2832	2240	cmd.exe	29
PID 2240 wrote to memory of 2832	2240	cmd.exe	29
PID 2240 wrote to memory of 2832	2240	cmd.exe	29
PID 2832 wrote to memory of 2708	2832	rundll32.exe	30
PID 2832 wrote to memory of 2708	2832	rundll32.exe	30
PID 2832 wrote to memory of 2708	2832	rundll32.exe	30
PID 2832 wrote to memory of 2708	2832	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2832
- - 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\locales\bg.pak"
    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
7f930d1914f60a59d291731ace26d268

SHA1
64e80e5c314e547fbbd90dcf1eac07f35d0db011

SHA256
3bc538fc23a2a8104cc346f61969b7c0c1e5cd344d45f4703e0d3106dac8fd33

SHA512
dbb28c888d7904d0c1df4ac86cbdb7908b1bfafa4238d84719504ee7abd2f4a651473e3412645b77bd58368a75e4f8484fa7ff9a725a6731f4f94149ed9d247b

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