fd8f2b5eaeb354d4b2d73acf8f79b93ef77a353f132f8f0fa1ff094e39c4db64

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:28

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General

Target

$_1_/dfxrealr.dll
Size

973KB
MD5

179d708b86cd0950c0d853fba6f7a9c2
SHA1

e6ed4e8fa4c5b07184135dbaf81a9c526e34af37
SHA256

a1aa586d95be28a3a9bee32cae73cce0cd00209b64f7a8dff45084e955a32ab1
SHA512

b0d19b66697868691efd8534f610bbc58a9c6b74f30d03eb9b90207b981368d502843cdeae2f5a0cb640324fe535ba1d3574f3b0a0e56cdec296526a67400b02
SSDEEP

12288:0fud1NAY44Y9td+Oeu+l9Fog4zyPhoHEdh0g0cSonaF5aUA1jQiCYTbzrwgR3tyN:0if3wgRM/0ZiR/pPsvRT4lmMRaNq

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2792	WerFault.exe	30

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	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2712 wrote to memory of 2792	2712	rundll32.exe	30
PID 2792 wrote to memory of 2800	2792	rundll32.exe	31
PID 2792 wrote to memory of 2800	2792	rundll32.exe	31
PID 2792 wrote to memory of 2800	2792	rundll32.exe	31
PID 2792 wrote to memory of 2800	2792	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$_1_\dfxrealr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$_1_\dfxrealr.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 264
    3⤵
    - Program crash
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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