3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596

Analysis

max time kernel
146s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 20:35

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General

Target

3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe
Size

237KB
MD5

c199e1851968808a149e098ace174501
SHA1

57d4d0de93f48c592c14de4053bc0010738efa3c
SHA256

3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596
SHA512

2f8c52f1727c85c060a6d62b0ef0e491b03cdada0e03f77e55bb31441ed490ae51ed7628fb3b3c86be1c02d5d754e6b3a3288a363778ec7587d47d76571fd7a7
SSDEEP

6144:/A2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:/ATuTAnKGwUAWVycQqgj

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
1284	3372	WerFault.exe	101
3620	2608	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	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.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\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3564	Explorer.EXE
Token: SeCreatePagefilePrivilege	3564	Explorer.EXE
Token: SeShutdownPrivilege	3564	Explorer.EXE
Token: SeCreatePagefilePrivilege	3564	Explorer.EXE
Token: SeShutdownPrivilege	3564	Explorer.EXE
Token: SeCreatePagefilePrivilege	3564	Explorer.EXE
Token: SeShutdownPrivilege	3564	Explorer.EXE
Token: SeCreatePagefilePrivilege	3564	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3372	winver.exe
2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3564	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 3372	2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe	101
PID 2608 wrote to memory of 3372	2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe	101
PID 2608 wrote to memory of 3372	2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe	101
PID 2608 wrote to memory of 3372	2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe	101
PID 3372 wrote to memory of 3564	3372	winver.exe	56
PID 2608 wrote to memory of 3564	2608	3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3564
- C:\Users\Admin\AppData\Local\Temp\3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe
  "C:\Users\Admin\AppData\Local\Temp\3a870259aec21492a2940ea877280f90564bad8520a167693ec0b3ad33e24596.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3372
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 300
      4⤵
      Program crash
      PID:1284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 872
    3⤵
    - Program crash
    PID:3620

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:2620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3372 -ip 3372
1⤵
PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2608 -ip 2608
1⤵
PID:3224

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/2608-1-0x0000000004750000-0x0000000004DA8000-memory.dmp

Filesize
6.3MB

Download
memory/2608-2-0x0000000003E80000-0x0000000003E81000-memory.dmp

Filesize
4KB

Download
memory/2608-6-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2608-13-0x0000000004750000-0x0000000004DA8000-memory.dmp

Filesize
6.3MB

Download
memory/3564-4-0x0000000001290000-0x0000000001296000-memory.dmp

Filesize
24KB

Download
memory/3564-5-0x0000000001290000-0x0000000001296000-memory.dmp

Filesize
24KB

Download
memory/3564-10-0x0000000001370000-0x0000000001376000-memory.dmp

Filesize
24KB

Download