b29dd1f2edab8ee4951c4316bc1f65f63bd903c7ab4b58d5be1e4b63ce376447

Analysis

max time kernel
118s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/08/2024, 19:06

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General

Target

18b5fbe1d93d00244293b438b279eb80N.exe
Size

225KB
MD5

18b5fbe1d93d00244293b438b279eb80
SHA1

87fbfd26bc799a314c26e550ce43281bccb37c00
SHA256

b29dd1f2edab8ee4951c4316bc1f65f63bd903c7ab4b58d5be1e4b63ce376447
SHA512

245c7fe80fac3412d92f1a32d7804ef91874e9316cea6851a54133fe71fb0907a90d02d8405c7cdf1b3cbe3bc121d0271e8047a7aa0d181a60ec5b7360555454
SSDEEP

6144:VA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:VATuTAnKGwUAW3ycQqgf

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
4772	1640	WerFault.exe	100
4008	2192	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	18b5fbe1d93d00244293b438b279eb80N.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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 16 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1640	winver.exe
2192	18b5fbe1d93d00244293b438b279eb80N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3380	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 1640	2192	18b5fbe1d93d00244293b438b279eb80N.exe	100
PID 2192 wrote to memory of 1640	2192	18b5fbe1d93d00244293b438b279eb80N.exe	100
PID 2192 wrote to memory of 1640	2192	18b5fbe1d93d00244293b438b279eb80N.exe	100
PID 2192 wrote to memory of 1640	2192	18b5fbe1d93d00244293b438b279eb80N.exe	100
PID 1640 wrote to memory of 3380	1640	winver.exe	55
PID 2192 wrote to memory of 3380	2192	18b5fbe1d93d00244293b438b279eb80N.exe	55

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3380
- C:\Users\Admin\AppData\Local\Temp\18b5fbe1d93d00244293b438b279eb80N.exe
  "C:\Users\Admin\AppData\Local\Temp\18b5fbe1d93d00244293b438b279eb80N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 300
      4⤵
      Program crash
      PID:4772
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2192 -s 760
    3⤵
    - Program crash
    PID:4008

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1640 -ip 1640
1⤵
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2192 -ip 2192
1⤵
PID:696

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

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Downloads

memory/2192-1-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/2192-2-0x0000000003E60000-0x0000000003E61000-memory.dmp

Filesize
4KB

Download
memory/2192-3-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/2192-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-14-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/3380-5-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3380-6-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3380-11-0x0000000001340000-0x0000000001346000-memory.dmp

Filesize
24KB

Download