a8d5126a1eafba06775bf2eaaf74b52873f15ac8c35a3603517511fcc6e1eaea

Analysis

max time kernel
835s
max time network
844s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 20:06

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General

Target

locales/sk.pak
Size

548KB
MD5

fd001b1b02597bbf16baf3f0baf3c6e4
SHA1

e4c703fc115e02833fe08caab1e62775b5812473
SHA256

f9cd222838721a618c23c8f6493bc9699c795c0063998f1a8d506b4b7a297cdc
SHA512

0ee991da6b8ba1bcc3cc27abc645af43bb93edddbf182496aafeeb401d71ae10716335ee0197f1987c21b3abb441aaac968b9a76e75ae77fcba4cc48847f5b1d
SSDEEP

12288:WH9r+eIYCk8/qsmkMVkLi4iG+kl5CF0LXT9XLPxt9i7:al+eA/qshLisl5fLxltI7

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2560	AcroRd32.exe
2560	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2576	2512	cmd.exe	29
PID 2512 wrote to memory of 2576	2512	cmd.exe	29
PID 2512 wrote to memory of 2576	2512	cmd.exe	29
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	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:2512
- 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:2576
- - 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:2560

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
c2ccca644cb401ddca114119a58b448c

SHA1
4ae420f39b0dd1b8f3ea75dadc640684d90ab87f

SHA256
fdee557878fb4f6628f066fcfcca2887d0bfbd898ae07bb037de20616dfa2fdd

SHA512
577d45d83d143667efac6839d285a639124824923f7cb212ade35bda92e80b56f2a75677f0450d0376e85b256af6892261450d57e380c6b1decdc619d67d6e61

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