f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1559s
max time network
1562s
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/sk.pak
Size

142KB
MD5

ba66aed3e696befd6c603087d87facf7
SHA1

dab2c2a8e3f0b0a2ee061d9910c09b5d54424e25
SHA256

7e0626ca0ca3d510d828f20ea8f7e63bd56db7a37300138b2a2d8e2c22eb9637
SHA512

23e24d29d0c8e64531fbdce558293244465e4239f5fe1618d038968fba6692bfeeee36b434f3d71252a9c767948db11a83b939edff0b82e5794a65501ed38022
SSDEEP

3072:WKo5tEskzpiyHHuaQRmAJ/4ckM+zBHCYeUrGw5Pa:WKos1ppHuaQRwGh

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-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2860	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2860	AcroRd32.exe
2860	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2816	2236	cmd.exe	29
PID 2236 wrote to memory of 2816	2236	cmd.exe	29
PID 2236 wrote to memory of 2816	2236	cmd.exe	29
PID 2816 wrote to memory of 2860	2816	rundll32.exe	30
PID 2816 wrote to memory of 2860	2816	rundll32.exe	30
PID 2816 wrote to memory of 2860	2816	rundll32.exe	30
PID 2816 wrote to memory of 2860	2816	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\sk.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\sk.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2816
- - 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\sk.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2860

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
26924f8ed79ad206955d95455d3def2e

SHA1
15a4c41095f0f87488d19d0bd58b2aaf9cc7f995

SHA256
ce18793edbe31d9bf7f450e2f10697b1f5fbe24fdb9cd22efa6df09ac1c261f6

SHA512
460c7a2c85c54e8d574cc225792c3d4fd75945f7859a135263af9841fdc55bf3bc104a3c42f36ceb0331c3065bdf220c48efd440fe0e9bb3da8a85394cc113a3

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