decbeada040f605e83f0b4df16aba94ced8762200a35d3e78ef7aedee49b37ad

Analysis

max time kernel
121s
max time network
132s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 22:01

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General

Target

locales/ca.pak
Size

384KB
MD5

2f8d050c228583559cda181291b76e5a
SHA1

b047f1cfb30b1162b1dd79f7e424a83fd807eec7
SHA256

e1d6b5fd0bc411f2895eaaa1409916f5ffe39a5c6bd1bafe8af7ce33da5be17d
SHA512

e4f150cd9942ef5105e72376835da6edc31ef91783e41cd2fc04600c04f342bbc96e08e23c8af1c0c1e563bb8a7d3840a2289767525c30d08c2f23d0e837801f
SSDEEP

12288:HQrijIs3cejEYBCqol3nbhj+YbHQluSwWwXcMjdLbpuQRBtryBiGIle3nei30CtX:HPm+thFMNSGhrKU5qzEK

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-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000_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
3012	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3012	AcroRd32.exe
3012	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2860	2784	cmd.exe	29
PID 2784 wrote to memory of 2860	2784	cmd.exe	29
PID 2784 wrote to memory of 2860	2784	cmd.exe	29
PID 2860 wrote to memory of 3012	2860	rundll32.exe	30
PID 2860 wrote to memory of 3012	2860	rundll32.exe	30
PID 2860 wrote to memory of 3012	2860	rundll32.exe	30
PID 2860 wrote to memory of 3012	2860	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2860
- - 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\ca.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3012

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
9c0ef5d563bf97153d6fd7ed6a6366d6

SHA1
1e1f85543bf8c891e58970ffa0aebb0d18ed09f0

SHA256
7e6774bcd0727db98559100a008c2d8cd574aab121d4ec71669702c47766c9bc

SHA512
94072dbad06cebd333195faf1dfc99b98ec0a675fe3edbf798c5266777d252f5ea8d82f8ab9c2ce2679398a39dd9b69eaca67db78064b48054ed5a20c0f1e650

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