fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 16:15

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General

Target

Setup/locales/fil.pak
Size

379KB
MD5

f989a7215cac1e3fb4759e5fba9aef67
SHA1

5ecf35f160e1f8242b3bca163673e24cf6d77403
SHA256

448bc8eae353c188ffaa4c2466956598ad807f0f0aae7f12e1bc59584e1aac2d
SHA512

b872beb5b1c2702f4eae616f633318b4575f573c06a3f1f0f1e1ab83585a52caf2f3c788c0c3a0d499c381fb7f06a3ea355b8686ded2ed1e392662f2746db01f
SSDEEP

6144:Po2wvMrF/y/DQkaRqQHunLxenGkZ3+mo59gmPHkAxw78:ykeCBHudqo5KmF

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_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-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2804	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2804	AcroRd32.exe
2804	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2756	2224	cmd.exe	29
PID 2224 wrote to memory of 2756	2224	cmd.exe	29
PID 2224 wrote to memory of 2756	2224	cmd.exe	29
PID 2756 wrote to memory of 2804	2756	rundll32.exe	30
PID 2756 wrote to memory of 2804	2756	rundll32.exe	30
PID 2756 wrote to memory of 2804	2756	rundll32.exe	30
PID 2756 wrote to memory of 2804	2756	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\fil.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\locales\fil.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2756
- - 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\Setup\locales\fil.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2804

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
53e7cd76dc17325974fbb543c16326e3

SHA1
61627f3f121f85f88331a76196986ad0e01fec58

SHA256
c9626f27a9af19ce44e71cc11ed9ab6eaf5d2b8586246e32b50177eb3e2cedf0

SHA512
5c9079279aadd030e5a4bf53b40487366b44edcd576ed162eabd24d78dc2127e4cb2a44f3e1f93d1490fca8f5156f6f04abe83b87127f869386e1a122a7ef18c

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