bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163

Analysis

max time kernel
147s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 04:35

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General

Target
bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe
Size 225KB
Sample240817-e7xjasxelh
SHA256 bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163
MD5 398a28048932bfc45ea4d4e3dbfd28e4
SHA1 a29b685a3a648130bf342288fa36d3fee7beaaf2
SHA512 af5ab2051f03f6d9530601399f6a08b79d4443875c1f72536a9f44297b26c0310742973fb47dfb6600abcf14cfff8e6ea0aec7e0de25de3e380d6e901e236cc1
SSDEEP 6144:oA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:oATuTAnKGwUAW3ycQqgf
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
4504	2104	WerFault.exe	102
5012	4588	WerFault.exe	85

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	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.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
4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe
4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2104	winver.exe
4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 2104	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	102
PID 4588 wrote to memory of 2104	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	102
PID 4588 wrote to memory of 2104	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	102
PID 4588 wrote to memory of 2104	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	102
PID 2104 wrote to memory of 3464	2104	winver.exe	56
PID 4588 wrote to memory of 3464	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	56
PID 4588 wrote to memory of 2644	4588	bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2644

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3464
- C:\Users\Admin\AppData\Local\Temp\bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe
  "C:\Users\Admin\AppData\Local\Temp\bf46b4a6872225710d5fd4cfcc0fd3061a4bc9c45396cb03994aa08417453163.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 300
      4⤵
      Program crash
      PID:4504
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 888
    3⤵
    - Program crash
    PID:5012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2104 -ip 2104
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4588 -ip 4588
1⤵
PID:2480

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/2644-14-0x0000000000EF0000-0x0000000000EF6000-memory.dmp

Download

memory/2644-20-0x0000000000EF0000-0x0000000000EF6000-memory.dmp

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memory/3464-5-0x0000000001170000-0x0000000001176000-memory.dmp

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memory/3464-6-0x0000000001170000-0x0000000001176000-memory.dmp

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memory/3464-11-0x00000000031B0000-0x00000000031B6000-memory.dmp

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memory/4588-1-0x0000000004520000-0x0000000004B78000-memory.dmp

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memory/4588-2-0x0000000003D10000-0x0000000003D11000-memory.dmp

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memory/4588-3-0x0000000004520000-0x0000000004B78000-memory.dmp

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memory/4588-7-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4588-10-0x0000000005730000-0x0000000006130000-memory.dmp

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memory/4588-19-0x0000000004520000-0x0000000004B78000-memory.dmp

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memory/4588-15-0x0000000005730000-0x0000000006130000-memory.dmp

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