3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6c

General

Target

3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe
Size

225KB
MD5

b1be0d2ca5a4715fbc6cb6ee586dec50
SHA1

506182417d6fb72041aeb465ee72293fe4ea44dc
SHA256

3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6c
SHA512

6ac4bba5c27a7aebcf906dc2572f4bf0cf62d5122745b17250081a95010b5907c71c5a1c93e2315b2bdecc090fb97dd1d5f30af052e99c1f74824be9ceff6b65
SSDEEP

6144:5A2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:5ATuTAnKGwUAW3ycQqgf

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
2900	4992	WerFault.exe
3520	3124	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	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.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
3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe
3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4992	winver.exe
3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 4992	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	102
PID 3124 wrote to memory of 4992	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	102
PID 3124 wrote to memory of 4992	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	102
PID 3124 wrote to memory of 4992	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	102
PID 4992 wrote to memory of 3444	4992	winver.exe	56
PID 3124 wrote to memory of 3444	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	56
PID 3124 wrote to memory of 2980	3124	3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2980

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe
  "C:\Users\Admin\AppData\Local\Temp\3fba7257b582f47b76804b5eb01cd2af0679afaa48779c3a790ec254dcd15a6cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3124
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 300
      4⤵
      Program crash
      PID:2900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 884
    3⤵
    - Program crash
    PID:3520

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4992 -ip 4992
1⤵
PID:1092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3124 -ip 3124
1⤵
PID:4684

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/2980-14-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/2980-20-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3124-2-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/3124-1-0x0000000004680000-0x0000000004CD8000-memory.dmp

Filesize
6.3MB

Download
memory/3124-3-0x0000000004680000-0x0000000004CD8000-memory.dmp

Filesize
6.3MB

Download
memory/3124-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3124-11-0x0000000005A90000-0x0000000006490000-memory.dmp

Filesize
10.0MB

Download
memory/3124-15-0x0000000005A90000-0x0000000006490000-memory.dmp

Filesize
10.0MB

Download
memory/3124-19-0x0000000004680000-0x0000000004CD8000-memory.dmp

Filesize
6.3MB

Download
memory/3444-6-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3444-5-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3444-12-0x0000000000900000-0x0000000000906000-memory.dmp

Filesize
24KB

Download

Analysis

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