4ee463200a2e23f5f8cd27820da94a17de71dfbcdd4793524262d6ab2099b44c

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 15:29

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General

Target

k84i936.dll
Size

13KB
MD5

7c0a51de29d404c903e2768e6d083ba6
SHA1

af1177ab91ca26ca84c096df4dc1f36363f21520
SHA256

f6c7ccbb1f2c879b7788e284301360e65d983ee000b1d69efbc9cdb60820b734
SHA512

3091c385603723769adb29f484548b8c7da3610bb588fc37359043c897fc9d1e69740a117b4be6f0c95e278c2b72ade6efc81e86523f33e82d297ceb7d1c08a9
SSDEEP

192:rONg35CxbUH3EvQgBsTmnVG3YDxxOFbCyBFngtEV:aeCS3cXYOOMKGt

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\name = "C:\\Users\\Admin\\AppData\\Roaming\\folder\\file.exe"	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2708	368	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 behavior: EnumeratesProcesses 8 IoCs

pid	Process
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe
368	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 368	4624	rundll32.exe	83
PID 4624 wrote to memory of 368	4624	rundll32.exe	83
PID 4624 wrote to memory of 368	4624	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\k84i936.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\k84i936.dll,#1
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:368
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 740
    3⤵
    - Program crash
    PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 368 -ip 368
1⤵
PID:3184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/368-0-0x0000000074AA0000-0x0000000074AA8000-memory.dmp

Filesize
32KB

Download
memory/368-2-0x0000000074AA0000-0x0000000074AA8000-memory.dmp

Filesize
32KB

Download