eb4a7d75e1661dc1d9e158317a788eaf1c280da115c0c78662d0cba514b1e59b

Analysis

max time kernel
176s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-02-2023 21:09

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General

Target

Setup/Locales/hr.pak
Size

316KB
MD5

cc69a93d29843651c525f43d08b42b28
SHA1

94d7c7c95e9390996144623e19a45deadf918104
SHA256

bd17debf1cf886d655bfd749ccd5880f3596faa3d40ee50573b651942d60ace2
SHA512

d98cacbdeff1c11903bc1b4e1d98ce294136fb1421af62ffc0e229f8c4edd401e69f489610157c3d2dc2e4d3789ddba189136821fc54eb15f31bb36cd10aeb13
SSDEEP

3072:Q7tzXt2fbDjCtSi+OSBH0uP5xnCV9ZnTC0tl56ttJdeVOGOZYuiEs4W3m3q1+l3P:Q5kuB95pB5XHC

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_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-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1632	AcroRd32.exe
1632	AcroRd32.exe
1632	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 964	1560	cmd.exe	29
PID 1560 wrote to memory of 964	1560	cmd.exe	29
PID 1560 wrote to memory of 964	1560	cmd.exe	29
PID 964 wrote to memory of 1632	964	rundll32.exe	30
PID 964 wrote to memory of 1632	964	rundll32.exe	30
PID 964 wrote to memory of 1632	964	rundll32.exe	30
PID 964 wrote to memory of 1632	964	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\Locales\hr.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\Locales\hr.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:964
- - 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\Setup\Locales\hr.pak"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1632

Network

MITRE ATT&CK Enterprise v6

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

memory/964-76-0x0000000000000000-mapping.dmp

Download
memory/1560-54-0x000007FEFC2C1000-0x000007FEFC2C3000-memory.dmp

Filesize
8KB

Download
memory/1632-81-0x0000000000000000-mapping.dmp

Download
memory/1632-82-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download