e10e4e255af0ba3293aed0222096b70d627a0a8217f1d3d76c2d6813e3074144

Analysis

max time kernel
118s
max time network
126s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 21:04

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General

Target

locales/ca.pak
Size

400KB
MD5

4cd6b3a91669ddcfcc9eef9b679ab65c
SHA1

43c41cb00067de68d24f72e0f5c77d3b50b71f83
SHA256

56efff228ee3e112357d6121b2256a2c3acd718769c89413de82c9d4305459c6
SHA512

699be9962d8aae241abd1d1f35cd8468ffbd6157bcd6bdf2c599d902768351b247baad6145b9826d87271fd4a19744eb11bf7065db7fefb01d66d2f1f39015a9
SSDEEP

12288:bgoRVrijIs3cejEYBCqS4o3nbhjJSwHQliEwfwVEMXdLbpuQ16BtryBiGIle3nei:b3GQUwJAMNTCypxB5WMml

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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2616	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2616	AcroRd32.exe
2616	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2596	2244	cmd.exe	29
PID 2244 wrote to memory of 2596	2244	cmd.exe	29
PID 2244 wrote to memory of 2596	2244	cmd.exe	29
PID 2596 wrote to memory of 2616	2596	rundll32.exe	30
PID 2596 wrote to memory of 2616	2596	rundll32.exe	30
PID 2596 wrote to memory of 2616	2596	rundll32.exe	30
PID 2596 wrote to memory of 2616	2596	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:2244
- 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:2596
- - 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:2616

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
a8907b927d7aa9cd0b4782f966bf97b5

SHA1
71af04f99d3928e7e35fa997321fa1104b873898

SHA256
9bb76147d17a9fef8a1b1a7f647dfb94cdc56f6ff5d3a8536a5738f67ae072eb

SHA512
4107537ca452850eb14054c93c03e275619d748138e2ed81c54968629d616e95e0c264f07f1156453ebe01ed658ec12e5c9bd4caf1747f0c719448459d69520e

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