a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1

General

Target

a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe
Size

610KB
MD5

4b101cab4ba2e2f56ac3310470f45250
SHA1

4abb294f9d8b8c7667c0abd549b296bb575b1626
SHA256

a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1
SHA512

c89c7c53bc9abcddf6714fe7577b8210a8a509974e42798f70e238256972a19a02e728cfb7fd186b298e1c0e0e90d786221aaea3dbe49bc2f12f694dd23a0626
SSDEEP

12288:3ATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+E:9T+KjUdQqboyyWoK1NGqzuhh

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
2040	4084	WerFault.exe	105
5060	3652	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	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.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
3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe
3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4084	winver.exe
3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 4084	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	105
PID 3652 wrote to memory of 4084	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	105
PID 3652 wrote to memory of 4084	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	105
PID 3652 wrote to memory of 4084	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	105
PID 4084 wrote to memory of 3516	4084	winver.exe	56
PID 3652 wrote to memory of 3516	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	56
PID 3652 wrote to memory of 2596	3652	a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2596

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe
  "C:\Users\Admin\AppData\Local\Temp\a6efc81f7050ae07074ba5d8e0d36dbac68c0fa9cd660a4aa20d6f91ac9e06c1N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3652
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4084
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 300
      4⤵
      Program crash
      PID:2040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 956
    3⤵
    - Program crash
    PID:5060

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4084 -ip 4084
1⤵
PID:2420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3652 -ip 3652
1⤵
PID:3676

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/2596-22-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2596-16-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3516-7-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3516-14-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3516-8-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3652-4-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/3652-5-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/3652-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3652-1-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/3652-13-0x0000000005AA0000-0x00000000064A0000-memory.dmp

Filesize
10.0MB

Download
memory/3652-3-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/3652-17-0x0000000005AA0000-0x00000000064A0000-memory.dmp

Filesize
10.0MB

Download
memory/3652-21-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/3652-2-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download

Analysis

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