55113d18c872ce9d9ea3d0076cbd54ddf111a40ed61d1bcf63c94ff256ffd6fa

Analysis

max time kernel
118s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 15:21

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
8790ca66f51b006d7326d7bf742f2e50N.exe
Size 225KB
Sample240818-srlnrazdlb
SHA256 55113d18c872ce9d9ea3d0076cbd54ddf111a40ed61d1bcf63c94ff256ffd6fa
MD5 8790ca66f51b006d7326d7bf742f2e50
SHA1 4848142c0019bee264ee6c92de94c66ceace71ec
SHA512 53a02ca057ed74b02049610bf26ec655308c278b0505ba8ba59107b476c8eba567f4c91062e75975263fc74f590a0d78ab6e2c6002a8659ea681e9bf03102026
SSDEEP 6144:FA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:FATuTAnKGwUAW3ycQqgf
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4536	3092	WerFault.exe	107
3752	3720	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 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	8790ca66f51b006d7326d7bf742f2e50N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3720	8790ca66f51b006d7326d7bf742f2e50N.exe
3720	8790ca66f51b006d7326d7bf742f2e50N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3092	winver.exe
3720	8790ca66f51b006d7326d7bf742f2e50N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 3092	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	107
PID 3720 wrote to memory of 3092	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	107
PID 3720 wrote to memory of 3092	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	107
PID 3720 wrote to memory of 3092	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	107
PID 3092 wrote to memory of 3424	3092	winver.exe	55
PID 3720 wrote to memory of 3424	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	55
PID 3720 wrote to memory of 2536	3720	8790ca66f51b006d7326d7bf742f2e50N.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2536

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3424
- C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe
  "C:\Users\Admin\AppData\Local\Temp\8790ca66f51b006d7326d7bf742f2e50N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3092
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 300
      4⤵
      Program crash
      PID:4536
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 932
    3⤵
    - Program crash
    PID:3752

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3092 -ip 3092
1⤵
PID:5020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3720 -ip 3720
1⤵
PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2536-27-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Download

memory/2536-21-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Download

memory/3424-12-0x0000000001F00000-0x0000000001F06000-memory.dmp

Download

memory/3424-19-0x0000000001F60000-0x0000000001F66000-memory.dmp

Download

memory/3424-13-0x0000000001F00000-0x0000000001F06000-memory.dmp

Download

memory/3720-9-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-14-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3720-8-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-1-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Download

memory/3720-10-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-6-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-5-0x00000000044E0000-0x00000000044E1000-memory.dmp

Download

memory/3720-7-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-4-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Download

memory/3720-18-0x00000000057B0000-0x00000000061B0000-memory.dmp

Download

memory/3720-3-0x0000000003D70000-0x0000000003D71000-memory.dmp

Download

memory/3720-22-0x00000000057B0000-0x00000000061B0000-memory.dmp

Download

memory/3720-26-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Download

memory/3720-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Download