8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2c

General

Target

8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe
Size

225KB
MD5

08f9f68c2e4eb8420e69733282f99380
SHA1

fcf4d6c4ce6e75c79bff68849d77b881adf11249
SHA256

8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2c
SHA512

49f222afb933d20dbadef2b393cfb831629f3cbed779839e43ded7bd87fee3ad6ca888675970b25fd5b8bbc19a6e0afa0666568155018e4d1107aaeb88ff0f37
SSDEEP

6144:dA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:dATuTAnKGwUAW3ycQqgf

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
4056	4488	WerFault.exe	94
3332	2540	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	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.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
2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe
2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4488	winver.exe
2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 4488	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	94
PID 2540 wrote to memory of 4488	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	94
PID 2540 wrote to memory of 4488	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	94
PID 2540 wrote to memory of 4488	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	94
PID 4488 wrote to memory of 3436	4488	winver.exe	56
PID 2540 wrote to memory of 3436	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	56
PID 2540 wrote to memory of 2560	2540	8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2560

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe
  "C:\Users\Admin\AppData\Local\Temp\8bfc441342c8bf952a16f73fd6840ca0abd47108fe63a9292df3f16b14c1cd2cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4488
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 300
      4⤵
      Program crash
      PID:4056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 888
    3⤵
    - Program crash
    PID:3332

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4488 -ip 4488
1⤵
PID:2928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2540 -ip 2540
1⤵
PID:320

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/2540-1-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/2540-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/2540-3-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/2540-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2540-10-0x0000000005A80000-0x0000000006480000-memory.dmp

Filesize
10.0MB

Download
memory/2540-15-0x0000000005A80000-0x0000000006480000-memory.dmp

Filesize
10.0MB

Download
memory/2540-19-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/2560-14-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2560-20-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3436-5-0x0000000001480000-0x0000000001486000-memory.dmp

Filesize
24KB

Download
memory/3436-6-0x0000000001480000-0x0000000001486000-memory.dmp

Filesize
24KB

Download
memory/3436-11-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download

Analysis

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