71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031c

General

Target

71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
Size

225KB
MD5

8d3482d61be5ff0deb680d598fbc4c30
SHA1

089d64a5650caf6ffae0d564a77888b2c512c83e
SHA256

71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031c
SHA512

7f0a6f5b518075caa472f36979b678b9f6ee153c5bbb29b13fbf846a20e46483d4b149d15a4390e15a7f71d025373a020652e9b6c9e06c62c8e18962d1ec87da
SSDEEP

6144:MA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:MATuTAnKGwUAW3ycQqgf

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
3996	744	WerFault.exe	93
3464	1556	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	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.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
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
744	winver.exe
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 744 wrote to memory of 3388	744	winver.exe	56
PID 1556 wrote to memory of 3388	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	56
PID 1556 wrote to memory of 2808	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2808

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
  "C:\Users\Admin\AppData\Local\Temp\71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:744
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 300
      4⤵
      Program crash
      PID:3996
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 932
    3⤵
    - Program crash
    PID:3464

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 744 -ip 744
1⤵
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1556 -ip 1556
1⤵
PID:800

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/1556-1-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/1556-2-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/1556-3-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/1556-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1556-10-0x0000000005AE0000-0x00000000064E0000-memory.dmp

Filesize
10.0MB

Download
memory/1556-19-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/1556-15-0x0000000005AE0000-0x00000000064E0000-memory.dmp

Filesize
10.0MB

Download
memory/2808-14-0x00000000008B0000-0x00000000008B6000-memory.dmp

Filesize
24KB

Download
memory/2808-20-0x00000000008B0000-0x00000000008B6000-memory.dmp

Filesize
24KB

Download
memory/3388-6-0x0000000000A50000-0x0000000000A56000-memory.dmp

Filesize
24KB

Download
memory/3388-5-0x0000000000A50000-0x0000000000A56000-memory.dmp

Filesize
24KB

Download
memory/3388-11-0x0000000000A90000-0x0000000000A96000-memory.dmp

Filesize
24KB

Download

Analysis

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