221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131

General

Target

221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe
Size

225KB
MD5

492cc36b1729bcecd188318cd24f2589
SHA1

f9c447a0309d4a35bbba2d96d20168b683f35263
SHA256

221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131
SHA512

1461722edc3327cb29a4f2e6bc5f74dde29d452229be472fb11632fbb8ceeb290e0366553373faabfdf54cec2225315a194617eb5343891b8b656fd53018aed5
SSDEEP

6144:AA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:AATuTAnKGwUAW3ycQqgf

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
5040	1296	WerFault.exe	103
4992	4304	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	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.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
4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe
4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1296	winver.exe
4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 1296	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	103
PID 4304 wrote to memory of 1296	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	103
PID 4304 wrote to memory of 1296	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	103
PID 4304 wrote to memory of 1296	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	103
PID 1296 wrote to memory of 3592	1296	winver.exe	56
PID 4304 wrote to memory of 3592	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	56
PID 4304 wrote to memory of 2500	4304	221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe	42

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3592
- C:\Users\Admin\AppData\Local\Temp\221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe
  "C:\Users\Admin\AppData\Local\Temp\221bb28430ad2691c47a0640a979e6e5af34d34ac2da1e1360639647b4af2131.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1296
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 300
      4⤵
      Program crash
      PID:5040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 976
    3⤵
    - Program crash
    PID:4992

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1296 -ip 1296
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4304 -ip 4304
1⤵
PID:844

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/2500-13-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/2500-19-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3592-4-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3592-5-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3592-11-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/4304-1-0x0000000004580000-0x0000000004BD8000-memory.dmp

Filesize
6.3MB

Download
memory/4304-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/4304-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4304-12-0x0000000005A90000-0x0000000006490000-memory.dmp

Filesize
10.0MB

Download
memory/4304-15-0x0000000005A90000-0x0000000006490000-memory.dmp

Filesize
10.0MB

Download
memory/4304-18-0x0000000004580000-0x0000000004BD8000-memory.dmp

Filesize
6.3MB

Download

Analysis

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