81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860b

General

Target

81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe
Size

225KB
MD5

91d67de4abd9d9294f22ba11b4101880
SHA1

ddd451c5aede3ad212698d1b8f9dd9527ccfa3b1
SHA256

81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860b
SHA512

81b5c51c13681ec71340548a17a5081895ae76552548b1b3cbe7f4c348b9d6eb9e3b9395420c8d9c7902d4b3ec4fc6457b8ba2545911f3b38f8ce926e804723f
SSDEEP

6144:JA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:JATuTAnKGwUAW3ycQqgf

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
4020	712	WerFault.exe	92
3588	416	WerFault.exe	80

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	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.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
416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe
416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
712	winver.exe
416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 416 wrote to memory of 712	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	92
PID 416 wrote to memory of 712	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	92
PID 416 wrote to memory of 712	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	92
PID 416 wrote to memory of 712	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	92
PID 712 wrote to memory of 3436	712	winver.exe	54
PID 416 wrote to memory of 3436	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	54
PID 416 wrote to memory of 2996	416	81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2996

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe
  "C:\Users\Admin\AppData\Local\Temp\81982b0b79f6de1105bf1383cdc5ab800dde52934d03df6eab4934124064860bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:416
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:712
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 712 -s 300
      4⤵
      Program crash
      PID:4020
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 416 -s 888
    3⤵
    - Program crash
    PID:3588

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 712 -ip 712
1⤵
PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 416 -ip 416
1⤵
PID:4276

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/416-12-0x0000000005AC0000-0x00000000064C0000-memory.dmp

Filesize
10.0MB

Download
memory/416-17-0x0000000005AC0000-0x00000000064C0000-memory.dmp

Filesize
10.0MB

Download
memory/416-3-0x00000000046B0000-0x0000000004D08000-memory.dmp

Filesize
6.3MB

Download
memory/416-4-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/416-5-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/416-2-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/416-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/416-1-0x00000000046B0000-0x0000000004D08000-memory.dmp

Filesize
6.3MB

Download
memory/416-21-0x00000000046B0000-0x0000000004D08000-memory.dmp

Filesize
6.3MB

Download
memory/2996-22-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/2996-16-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/3436-8-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3436-13-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/3436-7-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download

Analysis

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