f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1561s
max time network
1575s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 00:54

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General

Target
locales/sv.pak
Size 125KB
Sample240203-a89sssdbd6
SHA256 efb573a199353ac899928e896771c867d0d5047a90abe8efd03cc53a275a08d9
MD5 5910a1db798d96122e25e109fabd46ea
SHA1 3af5207b731bb32b8b267693e658cf4f42b05050
SHA512 b2b06e69c5f38923770cf3f71e632090282bb85c434e49b091742de49082e910e9146b2b1bf019e73f178795f4e736a4fd9764629ab7dc3dd2903985da2dae78
SSDEEP 3072:l7bG9He9z89KPmp1vWZtgKqrAuxHcShbWe2wAJ/0b1+rwk8x:tGVf9vpPbf
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_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-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2868	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2868	AcroRd32.exe
2868	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2532	2804	cmd.exe	29
PID 2804 wrote to memory of 2532	2804	cmd.exe	29
PID 2804 wrote to memory of 2532	2804	cmd.exe	29
PID 2532 wrote to memory of 2868	2532	rundll32.exe	30
PID 2532 wrote to memory of 2868	2532	rundll32.exe	30
PID 2532 wrote to memory of 2868	2532	rundll32.exe	30
PID 2532 wrote to memory of 2868	2532	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\sv.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\sv.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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\sv.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2868

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 710f519cfd376b459a40c1492217da447e9eb96b760dfab5bd11989b353edc56
MD5 f03842593546de2c01ab3bd4995a90b9
SHA1 724f20c82c798f09702296a4e5385f303b46402a
SHA512 bc96412c8267b63da6668f337a22ecae18d281a07c1f62cedef4d76e77cd99045d92ffa5ac342a341fdf8eb8010ba04731066a68cb6158f5765401c2d28de97f
MD5 SHA1 SHA512

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