3f70da063d48c6a6921fee36436a7ca0078c499746c43c575d17476c7aeb19e3

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
19/05/2024, 19:52

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General

Target

locales/et.pak
Size

428KB
MD5

5b169234895d929930140b4869a0b81a
SHA1

f58ba50d1e19ce191a0f8117f3e70f7f3dcb7362
SHA256

c465da80b14981bdbc687b7c37bf70d2bd4b8e03293c04ae5410f84c91ef980e
SHA512

c4297e272b5c04a0ee0956b873d5246591bee98c3b340e72202f3448381c691096a5bc540fdbcf61fb40d6a69270afa7198c1f0ccf3b2e84cabc906e23eb022c
SSDEEP

6144:Co6kjhAvuvJ1O7RCqDW+jDk+xdt0T5cqvT/F1AiGGZv5/je43S3apLU0xPQQbm:CoTjhouS9DVDNOX9v5/jpC

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\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2580	AcroRd32.exe
2580	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2800	1992	cmd.exe	29
PID 1992 wrote to memory of 2800	1992	cmd.exe	29
PID 1992 wrote to memory of 2800	1992	cmd.exe	29
PID 2800 wrote to memory of 2580	2800	rundll32.exe	30
PID 2800 wrote to memory of 2580	2800	rundll32.exe	30
PID 2800 wrote to memory of 2580	2800	rundll32.exe	30
PID 2800 wrote to memory of 2580	2800	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\et.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\et.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2800
- - 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\et.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2580

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
cf082b69395296c119dbceb9653b84b8

SHA1
07e458c34e7b3f20d1e4a4e8dcf98dd24fe48261

SHA256
6a920d402cff7c53deb5da53303e54ae7ad14c9c0417f72dcebf2d52caf4e3b8

SHA512
28f023c5da86a2fefcb3baf19baa02c426b2a618f344a472ab3c2eefaa6de1eb78b7cf63879b2a5a47f81e271dcdb2cc419c07cc05897ff8437ce6da4a8921e1

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