b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 12:08

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General

Target

b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe
Size

225KB
MD5

6af204179941f0a75df5ae781dcb38c0
SHA1

bc98e42e976e7932099b4990cac3a7704c30ebf0
SHA256

b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8
SHA512

daac25297f847cff3a0b0e6640e917d29c3851edc440fb21cd37fb2f658f50baf2fc05e40990d38faec3eebd2ac9558d00d45d11a677e8bac4e04586dd856c35
SSDEEP

6144:JA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:JATuTAnKGwUAW3ycQqgf

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
4792	264	WerFault.exe	93
1960	4236	WerFault.exe	82

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	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
264	winver.exe
3440	Explorer.EXE
3440	Explorer.EXE
4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3440	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 264	4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	93
PID 4236 wrote to memory of 264	4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	93
PID 4236 wrote to memory of 264	4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	93
PID 4236 wrote to memory of 264	4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	93
PID 264 wrote to memory of 3440	264	winver.exe	56
PID 4236 wrote to memory of 3440	4236	b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3440
- C:\Users\Admin\AppData\Local\Temp\b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe
  "C:\Users\Admin\AppData\Local\Temp\b7710c71399431e0c40aa866ead352ea08e84a831d0bba3840189103c57ff6d8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4236
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:264
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 264 -s 300
      4⤵
      Program crash
      PID:4792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 960
    3⤵
    - Program crash
    PID:1960

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 264 -ip 264
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4236 -ip 4236
1⤵
PID:4332

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/3440-8-0x0000000000F80000-0x0000000000F86000-memory.dmp

Filesize
24KB

Download
memory/3440-9-0x0000000000F80000-0x0000000000F86000-memory.dmp

Filesize
24KB

Download
memory/3440-14-0x0000000003180000-0x0000000003186000-memory.dmp

Filesize
24KB

Download
memory/4236-1-0x00000000045B0000-0x0000000004C08000-memory.dmp

Filesize
6.3MB

Download
memory/4236-2-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4236-3-0x00000000045B0000-0x0000000004C08000-memory.dmp

Filesize
6.3MB

Download
memory/4236-4-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4236-5-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4236-6-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4236-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4236-17-0x00000000045B0000-0x0000000004C08000-memory.dmp

Filesize
6.3MB

Download