66a05692cf2ff6b0abcd97a5d4b37b61700a21fb93eee4338d87b4ebe79e32b0

Analysis

max time kernel
94s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 08:32

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General

Target

SFhelper.dll
Size

90KB
MD5

05fc8bccccdabed0243488f3d7a30a75
SHA1

dfafc4da35a1182e7e1f5d4f32e6d600482b8a13
SHA256

ff553449b2d4b769a25b8b6c639d8b5d962ddce24b4601a1bff41b8fc7697376
SHA512

e326ef5f312c9a3c2ff7e09fc276e4b14aebfe17563ae44e47f7184b8c0dc9ac89f78d56e785b099e897945871a7dcd04747c0cd457128bca539baeca388f968
SSDEEP

1536:21Y63GYd+/TMY5IznqfilmW8otkKCt7Ab3VLXONAQ5M89CLqudzfiGkGmDkrwJVb:2t2Yd+/1ilH8ALlLX6AWDTudrXrUuWr

Score

5^/10

discovery

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4736 set thread context of 4060	4736	rundll32.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3640	4060	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 WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 4736	3116	rundll32.exe	82
PID 3116 wrote to memory of 4736	3116	rundll32.exe	82
PID 3116 wrote to memory of 4736	3116	rundll32.exe	82
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83
PID 4736 wrote to memory of 4060	4736	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SFhelper.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\SFhelper.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4736
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\SFhelper.dll,#1
    3⤵
    PID:4060
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 12
      4⤵
      Program crash
      PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4060 -ip 4060
1⤵
PID:2432

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/4060-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4736-1-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download