e77f9b875a25dcbfbb45c2f2eaf3d1b488fdb2f5cba434f8d5ce7737b3579435

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12/06/2024, 23:18

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General

Target

locales/bg.pak
Size

828KB
MD5

a69f6075863d47b564a2feb655a2946f
SHA1

062232499ff73d39724c05c0df121ecd252b8a31
SHA256

a5eb7038ed956bad7704a722f05691474ff709dffbad92b8e31dbb869ad58334
SHA512

930ce3938aa02a8bcc609a64bd86b7e6164d63baad157a980fd079859a6bee5db87bd1f7a74a71108f8368bc9c6154bf14a2dba1abf269f572bc262614bcf1db
SSDEEP

24576:T3ChsqKaElYMdAs1axUjHh373Zj93aAK5kVDgQwRunpKd2ao57JqueRSnQFwN/6B:TChsqKaElYtUjHh373Z53a1kVDgQw1dn

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_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\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	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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1712	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1712	AcroRd32.exe
1712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2656	2300	cmd.exe	29
PID 2300 wrote to memory of 2656	2300	cmd.exe	29
PID 2300 wrote to memory of 2656	2300	cmd.exe	29
PID 2656 wrote to memory of 1712	2656	rundll32.exe	30
PID 2656 wrote to memory of 1712	2656	rundll32.exe	30
PID 2656 wrote to memory of 1712	2656	rundll32.exe	30
PID 2656 wrote to memory of 1712	2656	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:2300
- 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:2656
- - 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:1712

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
d9f8c7a90bd9113301b50adb3a193b68

SHA1
74474c8e7cc991689b9fdc8c743cca2f012764d6

SHA256
dc948c766c53ae8746b2c6efd7293a25c5410886b14cd50f73b5ef4a02360465

SHA512
7eefae49b1b08862d8037af42435e971ec8b0570bd0de1228e8edf049b8789117689814fce1902d5943abaf496f4ea2a6ecf92c1e0da1cf3fcaa6d79158a7fae

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