3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8

General

Target

3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe
Size

610KB
MD5

56e9cd2bb21f2eb5a64607472cc95d00
SHA1

96f6b7e4bcaa2e1838506b462024f02fe27a207d
SHA256

3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8
SHA512

05592d72d9b982aa339fec945d4e9e65b45c8bfbfada275e4dc5ce6994614aaf5168fc426425a1907c8000500746684875b2f26a230dab89fc9f4597082c381d
SSDEEP

12288:UATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:KT+KjUdQqboyyWoK1NGqzuhj

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
2272	4972	WerFault.exe	93
4284	4120	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.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
4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe
4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4972	winver.exe
4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4972	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	93
PID 4120 wrote to memory of 4972	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	93
PID 4120 wrote to memory of 4972	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	93
PID 4120 wrote to memory of 4972	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	93
PID 4972 wrote to memory of 3484	4972	winver.exe	56
PID 4120 wrote to memory of 3484	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	56
PID 4120 wrote to memory of 2508	4120	3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2508

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3484
- C:\Users\Admin\AppData\Local\Temp\3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe
  "C:\Users\Admin\AppData\Local\Temp\3773036a3c013930e5aa27080ea93b034b0a9e0828f0493ac42a64a929ae42f8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4120
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 300
      4⤵
      Program crash
      PID:2272
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 928
    3⤵
    - Program crash
    PID:4284

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4972 -ip 4972
1⤵
PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4120 -ip 4120
1⤵
PID:3612

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/2508-21-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/3484-7-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3484-12-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3484-6-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4120-4-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/4120-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4120-1-0x00000000045C0000-0x0000000004C18000-memory.dmp

Filesize
6.3MB

Download
memory/4120-13-0x0000000005AD0000-0x00000000064D0000-memory.dmp

Filesize
10.0MB

Download
memory/4120-3-0x00000000045C0000-0x0000000004C18000-memory.dmp

Filesize
6.3MB

Download
memory/4120-16-0x0000000005AD0000-0x00000000064D0000-memory.dmp

Filesize
10.0MB

Download
memory/4120-20-0x00000000045C0000-0x0000000004C18000-memory.dmp

Filesize
6.3MB

Download
memory/4120-2-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download

Analysis

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