b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576

Analysis

max time kernel
130s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2025 04:06

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General

Target

b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe
Size

225KB
MD5

94f6c51df75c906816b3438f1338f1e7
SHA1

745064227a988cd3559a7a21a5a2616b308e63b7
SHA256

b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576
SHA512

90da0a9c33e151173bbedb84773ec7493e3dd31eeed2d1814607618f4fea4812375dd7ec5d0b0d2b33f165cdcb16365ffe28df0500fbd506668384654eb2538d
SSDEEP

6144:XA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:XATuTAnKGwUAW3ycQqgf

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
4732	1828	WerFault.exe	91
1952	3724	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	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.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	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1828	winver.exe
3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe
3424	Explorer.EXE
3424	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 1828	3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe	91
PID 3724 wrote to memory of 1828	3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe	91
PID 3724 wrote to memory of 1828	3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe	91
PID 3724 wrote to memory of 1828	3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe	91
PID 1828 wrote to memory of 3424	1828	winver.exe	56
PID 3724 wrote to memory of 3424	3724	b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.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:3424
- C:\Users\Admin\AppData\Local\Temp\b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe
  "C:\Users\Admin\AppData\Local\Temp\b664f7caf61ffedb271fd3d8aa2bcdbd19d352d21c56f209f5ae35ed35fb3576.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 300
      4⤵
      Program crash
      PID:4732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 804
    3⤵
    - Program crash
    PID:1952

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1828 -ip 1828
1⤵
PID:1276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3724 -ip 3724
1⤵
PID:1204

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/3424-6-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/3424-7-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/3424-12-0x0000000002800000-0x0000000002806000-memory.dmp

Filesize
24KB

Download
memory/3724-1-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/3724-2-0x0000000003E10000-0x0000000003E11000-memory.dmp

Filesize
4KB

Download
memory/3724-3-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/3724-4-0x0000000003E10000-0x0000000003E11000-memory.dmp

Filesize
4KB

Download
memory/3724-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3724-15-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download