81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-10-2024 23:47

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General

Target

81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe
Size

225KB
MD5

672476a7572d2a182577c1a0a6299792
SHA1

b6c2b6b5318a6304c10eed43367b3e66c4f9f9b5
SHA256

81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4
SHA512

23cafa4ed5f7d22a67b7cd6a5154587d5f989bdbc8ce5d2cb6ed52acf550987a98aa670dc68d75758fc3c292b55facfdcaed118ab6f59e0d277f000160276b9f
SSDEEP

6144:cA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:cATuTAnKGwUAW3ycQqgf

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
4300	2108	WerFault.exe	94
4264	1960	WerFault.exe	81

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	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.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 use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2108	winver.exe
1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3496	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2108	1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe	94
PID 1960 wrote to memory of 2108	1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe	94
PID 1960 wrote to memory of 2108	1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe	94
PID 1960 wrote to memory of 2108	1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe	94
PID 2108 wrote to memory of 3496	2108	winver.exe	56
PID 1960 wrote to memory of 3496	1960	81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3496
- C:\Users\Admin\AppData\Local\Temp\81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe
  "C:\Users\Admin\AppData\Local\Temp\81a2d90a951092cf90c64ca01b58971293fcdce8d8d4af4e39f58581220644f4.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2108
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 300
      4⤵
      Program crash
      PID:4300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 756
    3⤵
    - Program crash
    PID:4264

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 2108 -ip 2108
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1960 -ip 1960
1⤵
PID:4484

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

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Downloads

memory/1960-1-0x0000000004660000-0x0000000004CB8000-memory.dmp

Filesize
6.3MB

Download
memory/1960-2-0x0000000003EB0000-0x0000000003EB1000-memory.dmp

Filesize
4KB

Download
memory/1960-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1960-13-0x0000000004660000-0x0000000004CB8000-memory.dmp

Filesize
6.3MB

Download
memory/3496-4-0x0000000003570000-0x0000000003576000-memory.dmp

Filesize
24KB

Download
memory/3496-5-0x0000000003570000-0x0000000003576000-memory.dmp

Filesize
24KB

Download
memory/3496-10-0x0000000003580000-0x0000000003586000-memory.dmp

Filesize
24KB

Download