255bc7019a5188c5b07268b7bf4948d45df2a02e8d0b06de8b976de019ed7e6e

Analysis

max time kernel
121s
max time network
141s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
06/07/2024, 15:35

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General

Target

locales/am.pak
Size

599KB
MD5

c6ef9c40b48a069b70ed3335b52a9a9c
SHA1

d4a5fb05c4b493ecbb6fc80689b955c30c5cbbb4
SHA256

73a1034be12abda7401eb601819657cd7addf011bfd9ce39f115a442bccba995
SHA512

33c18b698040cd77162eb05658eca82a08994455865b70d1c08819dfac68f6db6b27d7e818260caa25310ff71cf128239a52c948fde098e75d1a319f478a9854
SSDEEP

12288:Jf6uKsr8xSTwVF/gsSP5R9F5AVqruvyP2x30jH8+I:Xr8xLVF4sSP5R9F5AVqWyPS

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-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2068	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2068	AcroRd32.exe
2068	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2884	2520	cmd.exe	31
PID 2520 wrote to memory of 2884	2520	cmd.exe	31
PID 2520 wrote to memory of 2884	2520	cmd.exe	31
PID 2884 wrote to memory of 2068	2884	rundll32.exe	32
PID 2884 wrote to memory of 2068	2884	rundll32.exe	32
PID 2884 wrote to memory of 2068	2884	rundll32.exe	32
PID 2884 wrote to memory of 2068	2884	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\am.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2884
- - 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\am.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2068

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
9fdf77021c445d9548adc85883a4d236

SHA1
2634cb6f16237c2b50f8d18d93bdc670f140a5c2

SHA256
e1e367688d0604dc17efe4cf9b4c1721fd22733c635173fc9d2fcbb13b4cf39c

SHA512
cced078c6a05e989165dd96ee8f10ad7abb796f45e9079201593fab2119f1c08317b6d18e5214d9f719c8f9691f92b74ab6129f06b861790100446a9c8803146

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