541c0e0a54824f4f33b72a291e7a17a6da2ec756950caa22a78de44d48acb2b6

Resubmissions

11/02/2024, 19:10

240211-xvlv5scf66 7

11/02/2024, 17:12

240211-vqvalshh8t 7

Analysis

max time kernel
120s
max time network
131s
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

locales/en-GB.pak
Size

113KB
MD5

75127302ac25474709f4d4d9d003d1fa
SHA1

dc3e4ff6240c6fa27d0ba2cf4e75efd05c4bd4ef
SHA256

c4874d32ae74029a6d9b244aa939200ba56acbf80e142f70a4b4fbdb61a36bac
SHA512

5ef0369b633f6bc4d75b660d772ec2ba69310ffd2068a734d9e2a8cf3a75c61e198dcdbc9ad32eeecf7aaa66d0eff03e1bfe3aa22e5ae438cad3002897ff2c0a
SSDEEP

3072:EMog06wRTmjQK6ruzBNgBAJX9bZij3ggl+1w:rKR9r+oh

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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_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
2764	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2576	2808	cmd.exe	29
PID 2808 wrote to memory of 2576	2808	cmd.exe	29
PID 2808 wrote to memory of 2576	2808	cmd.exe	29
PID 2576 wrote to memory of 2764	2576	rundll32.exe	30
PID 2576 wrote to memory of 2764	2576	rundll32.exe	30
PID 2576 wrote to memory of 2764	2576	rundll32.exe	30
PID 2576 wrote to memory of 2764	2576	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\en-GB.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\en-GB.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\en-GB.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2764

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
175fad364f67f9817995f2ffca4d2208

SHA1
78e0c6b9aa01469b683f5196fda5bb6b18e0e2be

SHA256
9f79eb9557ef15df457138e6ac4cc4543a5b7d2ea662c25642599559cf542eed

SHA512
cfc45580b81ac43337ee8af2239f4b16eaf60178d040dd0a7841f48f109c92c3637f63de2ea365480532260ee62d684bdd890389c477318889b174c0da07a2ee

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