85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0

Analysis

max time kernel
145s
max time network
52s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21/06/2024, 23:44

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General

Target
85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe
Size 225KB
Sample240621-3rd9sazepl
SHA256 85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0
MD5 51b56d178a4082cacdcf31d31132f409
SHA1 cc3a153c34b0f84747bb6d0f23a2fda8fa24d145
SHA512 26685a3e639d1e3a7f95b05bcbce48c4d9d97aab09f0d88398e6295706e83c6afe2f6a34d6eec29df7fe860b3b553b56435bda950bbc728ce95e27d42497b796
SSDEEP 6144:VA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:VATuTAnKGwUAW3ycQqgf
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

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
2800	1484	WerFault.exe	85
2116	4432	WerFault.exe	80

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe
4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1484	winver.exe
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE
4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3508	Explorer.EXE
3508	Explorer.EXE
3508	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 1484	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	85
PID 4432 wrote to memory of 1484	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	85
PID 4432 wrote to memory of 1484	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	85
PID 4432 wrote to memory of 1484	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	85
PID 1484 wrote to memory of 3508	1484	winver.exe	56
PID 4432 wrote to memory of 3508	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	56
PID 4432 wrote to memory of 2696	4432	85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2696

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3508
- C:\Users\Admin\AppData\Local\Temp\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe
  "C:\Users\Admin\AppData\Local\Temp\85a0e75ad50613ddd9394f5c45886e211d0cd01ef604a433407c34d5bc5b8be0.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4432
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 300
      4⤵
      Program crash
      PID:2800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 928
    3⤵
    - Program crash
    PID:2116

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1484 -ip 1484
1⤵
PID:2120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4432 -ip 4432
1⤵
PID:3764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2696-12-0x0000000000900000-0x0000000000906000-memory.dmp

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memory/2696-18-0x0000000000900000-0x0000000000906000-memory.dmp

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memory/3508-4-0x0000000000770000-0x0000000000776000-memory.dmp

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memory/3508-5-0x0000000000770000-0x0000000000776000-memory.dmp

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memory/3508-10-0x0000000002610000-0x0000000002616000-memory.dmp

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memory/4432-1-0x0000000004660000-0x0000000004CB8000-memory.dmp

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memory/4432-2-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

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memory/4432-6-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4432-9-0x0000000005B70000-0x0000000006570000-memory.dmp

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memory/4432-13-0x0000000005B70000-0x0000000006570000-memory.dmp

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memory/4432-17-0x0000000004660000-0x0000000004CB8000-memory.dmp

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