5c7d774313e58e4e3b93d7860126e9df834ead52e03c696a42c398d6ddd6a039

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 20:00

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General

Target

$TEMP/R2RFBFKG.dll
Size

91KB
MD5

62695f6fa2a85fc9993f57dfcbdc2749
SHA1

07a9b478df63fba4cf3002974b4cf56b404d0914
SHA256

1ab33027c4965b027298651781a1c780c272818da189e2c3a8101ac578069260
SHA512

69dd0de913629853400106811bffdebd8ec2037c93c9f9820d3f140e84576912de3ab57434086e20cf8698185015c27fa307e06047e2219dcf38a927a36f3c95
SSDEEP

1536:NWTHBAtr5cPLOWpTo5iw4AInivibbb+S4A39:0ThAtr5cPLOiaBRIig3

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2976	2380	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 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 2380 wrote to memory of 2976	2380	rundll32.exe	31
PID 2380 wrote to memory of 2976	2380	rundll32.exe	31
PID 2380 wrote to memory of 2976	2380	rundll32.exe	31
PID 2380 wrote to memory of 2976	2380	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RFBFKG.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RFBFKG.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 224
    3⤵
    - Program crash
    PID:2976

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

Windows 7 deprecation

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