b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197

General

Target

b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe
Size

610KB
MD5

48808120b645af685efdee77a1cbb1e0
SHA1

7ed9c42bd5f764e7188fdc0da2e857d7c6e1a835
SHA256

b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197
SHA512

97e4ba5879d440465803f87093369430626403a637fdc94483dccc0ae1fc0ae7741d65d017578039e30697f02fc34e0b53a58789465219eb015999a45a131638
SSDEEP

12288:BATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:jT+KjUdQqboyyWoK1NGqzuhb

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
4696	3104	WerFault.exe	93
932	1740	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	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.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
1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe
1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3584	Explorer.EXE
Token: SeCreatePagefilePrivilege	3584	Explorer.EXE
Token: SeShutdownPrivilege	3584	Explorer.EXE
Token: SeCreatePagefilePrivilege	3584	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3104	winver.exe
1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 3104	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	93
PID 1740 wrote to memory of 3104	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	93
PID 1740 wrote to memory of 3104	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	93
PID 1740 wrote to memory of 3104	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	93
PID 3104 wrote to memory of 3584	3104	winver.exe	56
PID 1740 wrote to memory of 3584	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	56
PID 1740 wrote to memory of 2580	1740	b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2580

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3584
- C:\Users\Admin\AppData\Local\Temp\b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe
  "C:\Users\Admin\AppData\Local\Temp\b22aa990d67a4d0f1c3d8d6a71d5e1994b9361ccfc74111dd7c87d590dba6197N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3104
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3104 -s 300
      4⤵
      Program crash
      PID:4696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 856
    3⤵
    - Program crash
    PID:932

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3104 -ip 3104
1⤵
PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1740 -ip 1740
1⤵
PID:4452

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

Loading Replay Monitor...

Downloads

memory/1740-1-0x0000000004790000-0x0000000004DE8000-memory.dmp

Filesize
6.3MB

Download
memory/1740-2-0x0000000003ED0000-0x0000000003ED1000-memory.dmp

Filesize
4KB

Download
memory/1740-3-0x0000000004790000-0x0000000004DE8000-memory.dmp

Filesize
6.3MB

Download
memory/1740-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1740-10-0x0000000005BA0000-0x00000000065A0000-memory.dmp

Filesize
10.0MB

Download
memory/1740-15-0x0000000005BA0000-0x00000000065A0000-memory.dmp

Filesize
10.0MB

Download
memory/1740-19-0x0000000004790000-0x0000000004DE8000-memory.dmp

Filesize
6.3MB

Download
memory/2580-14-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/2580-20-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/3584-5-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3584-6-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3584-11-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing