b54b18fdc4c34f33a425c7b5326728aa3257cb9c32f214a8554acd87145c3738

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 03:22

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General

Target
84552b06c46d512530bded834520c130N.exe
Size 225KB
Sample240907-dw7pfssdnr
SHA256 b54b18fdc4c34f33a425c7b5326728aa3257cb9c32f214a8554acd87145c3738
MD5 84552b06c46d512530bded834520c130
SHA1 8826ba797020abdd17f23aea3fcbad36ef3c4ee5
SHA512 1d87a7c359a4ab5d1302234a0aa9d787efe9e5c42b916985fcca6bfff3bb80913931afa26fdbbe7820e43b179857ab98fc0a6af694353a3c3d76b5501b579f47
SSDEEP 6144:ZA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:ZATuTAnKGwUAW3ycQqgf
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
3740	1440	WerFault.exe	98
3452	116	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	84552b06c46d512530bded834520c130N.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
116	84552b06c46d512530bded834520c130N.exe
116	84552b06c46d512530bded834520c130N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1440	winver.exe
116	84552b06c46d512530bded834520c130N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3476	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 1440	116	84552b06c46d512530bded834520c130N.exe	98
PID 116 wrote to memory of 1440	116	84552b06c46d512530bded834520c130N.exe	98
PID 116 wrote to memory of 1440	116	84552b06c46d512530bded834520c130N.exe	98
PID 116 wrote to memory of 1440	116	84552b06c46d512530bded834520c130N.exe	98
PID 1440 wrote to memory of 3476	1440	winver.exe	56
PID 116 wrote to memory of 3476	116	84552b06c46d512530bded834520c130N.exe	56
PID 116 wrote to memory of 2608	116	84552b06c46d512530bded834520c130N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2608

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3476
- C:\Users\Admin\AppData\Local\Temp\84552b06c46d512530bded834520c130N.exe
  "C:\Users\Admin\AppData\Local\Temp\84552b06c46d512530bded834520c130N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:116
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1440
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 300
      4⤵
      Program crash
      PID:3740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 928
    3⤵
    - Program crash
    PID:3452

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 1440 -ip 1440
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 116 -ip 116
1⤵
PID:220

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/116-1-0x00000000045E0000-0x0000000004C38000-memory.dmp

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memory/116-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

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memory/116-3-0x00000000045E0000-0x0000000004C38000-memory.dmp

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memory/116-7-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/116-10-0x0000000005AF0000-0x00000000064F0000-memory.dmp

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memory/116-15-0x0000000005AF0000-0x00000000064F0000-memory.dmp

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memory/116-19-0x00000000045E0000-0x0000000004C38000-memory.dmp

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memory/2608-14-0x0000000000F10000-0x0000000000F16000-memory.dmp

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memory/2608-20-0x0000000000F10000-0x0000000000F16000-memory.dmp

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memory/3476-5-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

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memory/3476-6-0x0000000002AE0000-0x0000000002AE6000-memory.dmp

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memory/3476-11-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

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