fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1ef

General

Target

fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe
Size

225KB
MD5

0325ee601e299bba4e71cac94bc8fdf0
SHA1

1fe74e5337d55b9f681d82a4560e162a96c82b4b
SHA256

fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1ef
SHA512

0001c808b982f01473a6011ac1fbb0fe74c76d7dcafb88a8dba303be78baae8ed7b5c72232d3e4131ab956ae4c9d1f90bb4fd96584846a61f28952d8b95e566f
SSDEEP

6144:9A2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:9ATuTAnKGwUAW3ycQqgf

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
1196	3164	WerFault.exe	93
1572	2384	WerFault.exe	81

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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.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
2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe
2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3164	winver.exe
2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 3164	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	93
PID 2384 wrote to memory of 3164	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	93
PID 2384 wrote to memory of 3164	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	93
PID 2384 wrote to memory of 3164	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	93
PID 3164 wrote to memory of 3464	3164	winver.exe	54
PID 2384 wrote to memory of 3464	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	54
PID 2384 wrote to memory of 2248	2384	fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2248

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3464
- C:\Users\Admin\AppData\Local\Temp\fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe
  "C:\Users\Admin\AppData\Local\Temp\fcf17af7763dda7d1c6c1ac93984191c15247b4d68fd1ca8bcebaa1f15a7b1efN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3164
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 300
      4⤵
      Program crash
      PID:1196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 884
    3⤵
    - Program crash
    PID:1572

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3164 -ip 3164
1⤵
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2384 -ip 2384
1⤵
PID:1868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2248-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2248-24-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2384-5-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2384-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2384-1-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/2384-6-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2384-7-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2384-2-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2384-23-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/2384-4-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2384-20-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2384-14-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2384-3-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/3464-15-0x0000000001520000-0x0000000001526000-memory.dmp

Filesize
24KB

Download
memory/3464-10-0x0000000001510000-0x0000000001516000-memory.dmp

Filesize
24KB

Download
memory/3464-9-0x0000000001510000-0x0000000001516000-memory.dmp

Filesize
24KB

Download

Analysis

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