31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad

General

Target

31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
Size

225KB
MD5

49d77b0e16d4889c9869d18a4694d2e0
SHA1

71a1b7b0a8fa51924d468a2af7df02e0fa315705
SHA256

31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad
SHA512

7e74e532d316cd21539dfa57cd31c894c612a4f43d36cef6cfb7eb2f1f0104cf0c3e3b6cdbeae8582920f04a013104119bfbc32bb52641aecce1971dcef3b495
SSDEEP

6144:dA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:dATuTAnKGwUAW3ycQqg3

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
2096	3792	WerFault.exe	102
688	1636	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	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.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
1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3792	winver.exe
1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 3792	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	102
PID 1636 wrote to memory of 3792	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	102
PID 1636 wrote to memory of 3792	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	102
PID 1636 wrote to memory of 3792	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	102
PID 3792 wrote to memory of 3568	3792	winver.exe	56
PID 1636 wrote to memory of 3568	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	56
PID 1636 wrote to memory of 2468	1636	31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2468

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3568
- C:\Users\Admin\AppData\Local\Temp\31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe
  "C:\Users\Admin\AppData\Local\Temp\31d3f9e072bc52beb3b7c5f936c7e4de25660c6d3433e7812667ca4ca9393fad.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3792
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3792 -s 300
      4⤵
      Program crash
      PID:2096
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1636 -s 976
    3⤵
    - Program crash
    PID:688

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3792 -ip 3792
1⤵
PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1636 -ip 1636
1⤵
PID:32

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/1636-13-0x0000000005AF0000-0x00000000064F0000-memory.dmp

Filesize
10.0MB

Download
memory/1636-21-0x00000000046E0000-0x0000000004D38000-memory.dmp

Filesize
6.3MB

Download
memory/1636-3-0x00000000046E0000-0x0000000004D38000-memory.dmp

Filesize
6.3MB

Download
memory/1636-4-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/1636-5-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/1636-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1636-17-0x0000000005AF0000-0x00000000064F0000-memory.dmp

Filesize
10.0MB

Download
memory/1636-1-0x00000000046E0000-0x0000000004D38000-memory.dmp

Filesize
6.3MB

Download
memory/1636-2-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/2468-16-0x0000000000D40000-0x0000000000D46000-memory.dmp

Filesize
24KB

Download
memory/2468-22-0x0000000000D40000-0x0000000000D46000-memory.dmp

Filesize
24KB

Download
memory/3568-8-0x00000000029F0000-0x00000000029F6000-memory.dmp

Filesize
24KB

Download
memory/3568-14-0x0000000002A00000-0x0000000002A06000-memory.dmp

Filesize
24KB

Download
memory/3568-7-0x00000000029F0000-0x00000000029F6000-memory.dmp

Filesize
24KB

Download

Analysis

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