77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28/06/2024, 23:11

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General

Target
77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe
Size 225KB
Sample240628-26enesvckf
SHA256 77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc
MD5 937bac3b2a292ae7b19a5cb1944606bb
SHA1 82bfbb5a2ce461b97250f76f56796e50d413a257
SHA512 6816a4b2c39494e4202dbb405a4be2d2b4c6a1c4e5fcf5f32c9e6d28714f2e625f882b3b0b0a99f35222f2b35f01eb5e9de348d66161fe337e76cd98d2f40de8
SSDEEP 6144:nA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:nATuTAnKGwUAW3ycQqgf
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
3900	3316	WerFault.exe	85
3604	3092	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
3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe
3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3316	winver.exe
3532	Explorer.EXE
3532	Explorer.EXE
3532	Explorer.EXE
3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3532	Explorer.EXE
3532	Explorer.EXE
3532	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 3316	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	85
PID 3092 wrote to memory of 3316	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	85
PID 3092 wrote to memory of 3316	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	85
PID 3092 wrote to memory of 3316	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	85
PID 3316 wrote to memory of 3532	3316	winver.exe	57
PID 3092 wrote to memory of 3532	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	57
PID 3092 wrote to memory of 2616	3092	77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3532
- C:\Users\Admin\AppData\Local\Temp\77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe
  "C:\Users\Admin\AppData\Local\Temp\77cd9bcf88daa1cc802686931d3f8c673c5be0a643f582b793ea95f8975df5cc.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3316
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 300
      4⤵
      Program crash
      PID:3900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 812
    3⤵
    - Program crash
    PID:3604

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3316 -ip 3316
1⤵
PID:3520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3092 -ip 3092
1⤵
PID:1844

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/2616-12-0x0000000000E50000-0x0000000000E56000-memory.dmp

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memory/2616-18-0x0000000000E50000-0x0000000000E56000-memory.dmp

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memory/3092-1-0x0000000004750000-0x0000000004DA8000-memory.dmp

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memory/3092-2-0x0000000002520000-0x0000000002521000-memory.dmp

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memory/3092-6-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/3092-9-0x0000000005B60000-0x0000000006560000-memory.dmp

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memory/3092-13-0x0000000005B60000-0x0000000006560000-memory.dmp

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memory/3092-17-0x0000000004750000-0x0000000004DA8000-memory.dmp

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memory/3532-4-0x0000000001000000-0x0000000001006000-memory.dmp

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memory/3532-5-0x0000000001000000-0x0000000001006000-memory.dmp

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memory/3532-10-0x0000000001030000-0x0000000001036000-memory.dmp

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