802f9b6593f3a015518845b1bdc5f1c1e3cf22f8a627d771b961e5f120cfc47b

General

Target

83f037c0fde3ddf84c309102f5344500N.exe
Size

225KB
MD5

83f037c0fde3ddf84c309102f5344500
SHA1

7e72832180ba6d0539ac31f4471c12c9ee5d40bd
SHA256

802f9b6593f3a015518845b1bdc5f1c1e3cf22f8a627d771b961e5f120cfc47b
SHA512

19c3309ac802606cdf3c3f2644a88deb8aa8814f0e3f46299f9eb767a083abfdeb193c16028b97a3957d0fcf35958918f35e6f2bf38468eda559b44c5f4c53e3
SSDEEP

6144:LA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:LATuTAnKGwUAW3ycQqgf

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
5080	1688	WerFault.exe	97
2024	4744	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	83f037c0fde3ddf84c309102f5344500N.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
4744	83f037c0fde3ddf84c309102f5344500N.exe
4744	83f037c0fde3ddf84c309102f5344500N.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
1688	winver.exe
4744	83f037c0fde3ddf84c309102f5344500N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 1688	4744	83f037c0fde3ddf84c309102f5344500N.exe	97
PID 4744 wrote to memory of 1688	4744	83f037c0fde3ddf84c309102f5344500N.exe	97
PID 4744 wrote to memory of 1688	4744	83f037c0fde3ddf84c309102f5344500N.exe	97
PID 4744 wrote to memory of 1688	4744	83f037c0fde3ddf84c309102f5344500N.exe	97
PID 1688 wrote to memory of 3464	1688	winver.exe	55
PID 4744 wrote to memory of 3464	4744	83f037c0fde3ddf84c309102f5344500N.exe	55
PID 4744 wrote to memory of 2584	4744	83f037c0fde3ddf84c309102f5344500N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2584

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3464
- C:\Users\Admin\AppData\Local\Temp\83f037c0fde3ddf84c309102f5344500N.exe
  "C:\Users\Admin\AppData\Local\Temp\83f037c0fde3ddf84c309102f5344500N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 300
      4⤵
      Program crash
      PID:5080
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 984
    3⤵
    - Program crash
    PID:2024

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1688 -ip 1688
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4744 -ip 4744
1⤵
PID:2404

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/2584-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2584-23-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3464-14-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/3464-8-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3464-9-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4744-4-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/4744-5-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/4744-6-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/4744-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4744-1-0x0000000004690000-0x0000000004CE8000-memory.dmp

Filesize
6.3MB

Download
memory/4744-13-0x0000000005AA0000-0x00000000064A0000-memory.dmp

Filesize
10.0MB

Download
memory/4744-3-0x0000000004690000-0x0000000004CE8000-memory.dmp

Filesize
6.3MB

Download
memory/4744-18-0x0000000005AA0000-0x00000000064A0000-memory.dmp

Filesize
10.0MB

Download
memory/4744-22-0x0000000004690000-0x0000000004CE8000-memory.dmp

Filesize
6.3MB

Download
memory/4744-2-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download

Analysis

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