0d60bc587b5e80c03345dff692b6de492dee7bd946f2522086a00992e9561757

Analysis

max time kernel
102s
max time network
22s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09-07-2024 08:18

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General

Target

locales/bn.pak
Size

456KB
MD5

f4018fb82d1baeed446f6da78836c2db
SHA1

4c86394f38f791c98f5c673f245e71a5da6b13c0
SHA256

47d52469f70d3b2dfcd2833dc76780c7c9fe493ff2a1e3b962a22f1ef6739d73
SHA512

ab3e6f0db18ab2760d0d673c4e39ff9d173b6df134188a7e528942b027176d79582215d5f75c3da63e1555c6832b05d7a9e901668d34c6b05bce8552696018e2
SSDEEP

1536:Poo79qRKoeuKZYg51scNNe7PUxpDD2oAoe/XV0mU0usQInWe/uxFhUKkjNh/H9Z2:ZJqUoeZpNNe7PUxpD8AoKkve5mTrHmJP

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\Read	rundll32.exe
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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\pak_auto_file\	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\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
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2832	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2832	AcroRd32.exe
2832	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 2156	1280	cmd.exe	30
PID 1280 wrote to memory of 2156	1280	cmd.exe	30
PID 1280 wrote to memory of 2156	1280	cmd.exe	30
PID 2156 wrote to memory of 2832	2156	rundll32.exe	31
PID 2156 wrote to memory of 2832	2156	rundll32.exe	31
PID 2156 wrote to memory of 2832	2156	rundll32.exe	31
PID 2156 wrote to memory of 2832	2156	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2156
- - 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\bn.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2832

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
a11f39fc412a10a27d7002e7fa4d0ded

SHA1
23ce9b1f1826675e535091187ff5249ca24fb07c

SHA256
1949f136d0527ecfddfaf7d3b4a9930e64e4f39dc4edece45298ec03d1fb53f8

SHA512
94871f66b4fce56a04a826080bf64c043dbde68ad7b2309d10cde71863f979ba133cd061f713feba35014042c4303cddd81b6c9ed6c328176319c5bdac0274ea

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