bf30248b7299bd424c3e9f7b12e7532b2fc7d93e6e0d11738d417627292f2266

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2024, 07:55

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General

Target

bf30248b7299bd424c3e9f7b12e7532b2fc7d93e6e0d11738d417627292f2266.dll
Size

236KB
MD5

541eb85d88ba1882b17c9c72b9abcb8d
SHA1

456edd084a7e2bc78551a99ddb361c688df6f75a
SHA256

bf30248b7299bd424c3e9f7b12e7532b2fc7d93e6e0d11738d417627292f2266
SHA512

6c3ddb761e626fadc11e51d8633fe46112d84c5294407c530c2bef9d9cd962930fe4a48d948e212b78f5b16801ab70e6c0f701a4ec69d39017109e013ae7a540
SSDEEP

3072:nV9vwxa6JMOZwtRru93FPiddT2kKxcK3gp0n8po/3hw22tgoT3d:nV9vEa6B1wxDKxDgKDvvroT3

Score

8^/10

discovery

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	1128	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Mu.ini	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1208	1128	WerFault.exe	83

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 AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	rundll32.exe
Token: SeDebugPrivilege	1128	rundll32.exe
Token: SeDebugPrivilege	1128	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 1128	448	rundll32.exe	83
PID 448 wrote to memory of 1128	448	rundll32.exe	83
PID 448 wrote to memory of 1128	448	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf30248b7299bd424c3e9f7b12e7532b2fc7d93e6e0d11738d417627292f2266.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf30248b7299bd424c3e9f7b12e7532b2fc7d93e6e0d11738d417627292f2266.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1128
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 968
    3⤵
    - Program crash
    PID:1208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1128 -ip 1128
1⤵
PID:2364

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

Replay Monitor

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Downloads

memory/1128-11-0x0000000075B35000-0x0000000075B36000-memory.dmp

Filesize
4KB

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