3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1b

General

Target

3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe
Size

225KB
MD5

85b1e4826981d4085532ed1f2579d2c0
SHA1

46d3e3969cf866a7a338a698143d2c4db0626f07
SHA256

3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1b
SHA512

ecdd397fc3fb3edb0eb6af0424b610acfca525ef45027a27fd88a63ec433d6f21585b1fa9af4a9a30db95c0e953f65e9f49b85761e9e78708b37e399a93ea88d
SSDEEP

6144:wA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:wATuTAnKGwUAW3ycQqgf

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
3108	4936	WerFault.exe	103
3368	540	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	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe
540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4936	winver.exe
540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4936	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	103
PID 540 wrote to memory of 4936	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	103
PID 540 wrote to memory of 4936	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	103
PID 540 wrote to memory of 4936	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	103
PID 4936 wrote to memory of 3360	4936	winver.exe	55
PID 540 wrote to memory of 3360	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	55
PID 540 wrote to memory of 384	540	3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:384

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3360
- C:\Users\Admin\AppData\Local\Temp\3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe
  "C:\Users\Admin\AppData\Local\Temp\3812c78639561f390c5830a0c3626d17456969e1a2998bdd4931617ca566aa1bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:540
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4936
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 300
      4⤵
      Program crash
      PID:3108
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 888
    3⤵
    - Program crash
    PID:3368

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4936 -ip 4936
1⤵
PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 540 -ip 540
1⤵
PID:748

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

Loading Replay Monitor...

Downloads

memory/384-23-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/384-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/540-18-0x0000000005AB0000-0x00000000064B0000-memory.dmp

Filesize
10.0MB

Download
memory/540-2-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/540-3-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Filesize
6.3MB

Download
memory/540-4-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/540-5-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/540-6-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/540-1-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Filesize
6.3MB

Download
memory/540-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/540-22-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Filesize
6.3MB

Download
memory/540-14-0x0000000005AB0000-0x00000000064B0000-memory.dmp

Filesize
10.0MB

Download
memory/3360-8-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3360-15-0x0000000001010000-0x0000000001016000-memory.dmp

Filesize
24KB

Download
memory/3360-9-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing