bc74276304b95e57d74a219e1cddf35f8fd8abec6500f4b087e769f43e37bd2a

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
04-07-2024 11:37

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General

Target

locales/ca.pak
Size

416KB
MD5

01acd6f7a4ea85d8e63099ce1262fbad
SHA1

f654870d442938385b99444c2cacd4d6b60d2a0d
SHA256

b48d1bad676f2e718cbe548302127e0b3567913a2835522d6dd90279a6d2a56a
SHA512

2bd13eca1a85c219e24a9deb5b767faa5dc7e6b3005d4eb772e3794233ed49cb94c4492538d18acc98658c01d941e35c6f213c18ac5480da151c7545eedeb4ab
SSDEEP

12288:+S19cdrijIs3cSlFEYLCJBB43nbhjJSwmrwiwWzMw1dLbpuQ16BtryBBwIle3neq:t39V4GRsMNux1hnW5CptA

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\	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	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
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2624	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2624	AcroRd32.exe
2624	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2652	1992	cmd.exe	29
PID 1992 wrote to memory of 2652	1992	cmd.exe	29
PID 1992 wrote to memory of 2652	1992	cmd.exe	29
PID 2652 wrote to memory of 2624	2652	rundll32.exe	30
PID 2652 wrote to memory of 2624	2652	rundll32.exe	30
PID 2652 wrote to memory of 2624	2652	rundll32.exe	30
PID 2652 wrote to memory of 2624	2652	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.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\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2652
- - 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\ca.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2624

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
50624102d3b59b83478f71809466e66b

SHA1
39b343353c081004a8e55f50b97b6efe60a3f1f2

SHA256
dc5b4d41e800d77fd846a4c260a4fc5d7c19d1afd5f776c0974bfdda7ba50df2

SHA512
054e06174b655988dd82b0c24e65d595f246dabab9fcbd379d67d42ddda8f8aa9e826b735100298a3409c481304c0c5a1a591c0d7380c7b9a58ef7122210d3db

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