541c0e0a54824f4f33b72a291e7a17a6da2ec756950caa22a78de44d48acb2b6

Resubmissions

11/02/2024, 19:10

240211-xvlv5scf66 7

11/02/2024, 17:12

240211-vqvalshh8t 7

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/02/2024, 17:12

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General

Target

resources.pak
Size

4.9MB
MD5

ff31c1a39edc8202e052a41fb977a300
SHA1

f220ed82575e346c2fb086c0868c07318d57ef92
SHA256

965dcddcb984a231fb2356d6d7ff4e047c2d8fa527442fa64981ab5d254525c9
SHA512

3b3370dd630fd200969331ae7d9b7e005cfbc3aa41ad128274bdc7797de2eca89998787a90a96baecf25ffc64e2c764cb75051efbac57c679abfd17b47873cce
SSDEEP

98304:y6zh1Kt66I001Yk93pPHCYh1348CYCUrwr1ISgMRQK8nXCpGm5vEybt:/z/Kt669GHjhB48hCUkrGsyCV5vXbt

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	rundll32.exe
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
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_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
2848	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2848	AcroRd32.exe
2848	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 2676	1664	cmd.exe	29
PID 1664 wrote to memory of 2676	1664	cmd.exe	29
PID 1664 wrote to memory of 2676	1664	cmd.exe	29
PID 2676 wrote to memory of 2848	2676	rundll32.exe	30
PID 2676 wrote to memory of 2848	2676	rundll32.exe	30
PID 2676 wrote to memory of 2848	2676	rundll32.exe	30
PID 2676 wrote to memory of 2848	2676	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2676
- - 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\resources.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2848

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
050113d59bf1fbab390b5aeed93ba7db

SHA1
afa0f2a3794f2c0953ef72acfb6712ac647262d3

SHA256
7b9aee425f9fc2ac2c335cb123f01d5b0fea0403b31b2b31f0b01ff7bf952a52

SHA512
af926db5441279684f7acfcf83f3e463afdc7821f4217b5e47e7e1708373c23000f4435bb828cd515dd4a7fff14986b00eda7c695c26736ac8bc5d3792bda483

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