4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4fe

General

Target

4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe
Size

225KB
MD5

c6176034086a92d4f559f09c0a98de20
SHA1

41d6b42dd02f7e950396945d832143d5c628857e
SHA256

4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4fe
SHA512

75a852bffd6d68f1007770daa5cdeb1df75f2528a042b7458d7dd8cf31ec6f84c25956ecd931870d54485a573e15cc468802d08defc69f390f127de950c780e0
SSDEEP

6144:WA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:WATuTAnKGwUAW3ycQqgf

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
3232	2568	WerFault.exe	93
4420	2928	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	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.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
2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe
2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2568	winver.exe
2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2568	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	93
PID 2928 wrote to memory of 2568	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	93
PID 2928 wrote to memory of 2568	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	93
PID 2928 wrote to memory of 2568	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	93
PID 2568 wrote to memory of 3548	2568	winver.exe	56
PID 2928 wrote to memory of 3548	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	56
PID 2928 wrote to memory of 2500	2928	4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3548
- C:\Users\Admin\AppData\Local\Temp\4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe
  "C:\Users\Admin\AppData\Local\Temp\4b258791979a84e3dbe69f113b018dd8a60ef4eeff4f22c86c5ad6f46fc8b4feN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2568
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 300
      4⤵
      Program crash
      PID:3232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 980
    3⤵
    - Program crash
    PID:4420

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2568 -ip 2568
1⤵
PID:1412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2928 -ip 2928
1⤵
PID:1976

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/2500-14-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2500-20-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2928-1-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/2928-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/2928-3-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/2928-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2928-10-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2928-15-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2928-19-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/3548-5-0x0000000002700000-0x0000000002706000-memory.dmp

Filesize
24KB

Download
memory/3548-6-0x0000000002700000-0x0000000002706000-memory.dmp

Filesize
24KB

Download
memory/3548-11-0x0000000002710000-0x0000000002716000-memory.dmp

Filesize
24KB

Download

Analysis

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