2d75bc310ccdfb81b7367a87d93b4539c1051512c294415ab8cd0e1b8c68792b

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 03:01

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General

Target

locales/zh-TW.pak
Size

442KB
MD5

337bba163068f2dd7ff107ea929c8473
SHA1

536ec5756f229696dd6f875180778afcee1966fb
SHA256

58753d4313ed7f548df16a9cd9aa1f0e30cebee675a76b8359ed23fc95825574
SHA512

000b98249d7b0e4c7e463bafdf827e3dc5afac447750320d6344c984f4ad41cab5795861920525f03dcaeea5aa3615684101b08bbc103d3ba01065676c8bd64f
SSDEEP

6144:1nqUsbcI8cPArmJflGs2/uUasg5b5SjkzBMOZQyZV7zeyTA:JqBb/LPA0Sasg5b5Sjkzpr/7+

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_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
2132	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2132	AcroRd32.exe
2132	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2688	2352	cmd.exe	31
PID 2352 wrote to memory of 2688	2352	cmd.exe	31
PID 2352 wrote to memory of 2688	2352	cmd.exe	31
PID 2688 wrote to memory of 2132	2688	rundll32.exe	32
PID 2688 wrote to memory of 2132	2688	rundll32.exe	32
PID 2688 wrote to memory of 2132	2688	rundll32.exe	32
PID 2688 wrote to memory of 2132	2688	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\zh-TW.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\zh-TW.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2688
- - 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\zh-TW.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
9e7be858a785580a156b943f6b7e9ca1

SHA1
b865b7df0bb6d6b4320c9637ea1ebf57a4b658ca

SHA256
e39456e95b6ff82afaa3f8aef4941166f301fabaaa9f396e652020321dea5049

SHA512
7fc82588303b14bdb44cbadc7ea235823349c35eb6c2beb2b9e212cae5c5910902a22a88f05bf71fcc0b1a9f78f7f6be204b74a359285029a938b7d280775868

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