18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764

General

Target

18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe
Size

225KB
MD5

e6d89673f46211c529e7aa80a703194a
SHA1

457aeab6c65934a78f93bcdf80758c3fe883cb08
SHA256

18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764
SHA512

4190b1d8e6e321584f2389af685446fb6a30edaacb889530f10305b23b0814a71fa47487bcb49a3e319066bf55af837fc9a8a6bc794d5db4dae62c7ac66c98c4
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
516	3236	WerFault.exe	93
2764	2640	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	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.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
2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe
2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3236	winver.exe
2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 3236	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	93
PID 2640 wrote to memory of 3236	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	93
PID 2640 wrote to memory of 3236	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	93
PID 2640 wrote to memory of 3236	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	93
PID 3236 wrote to memory of 3504	3236	winver.exe	56
PID 2640 wrote to memory of 3504	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	56
PID 2640 wrote to memory of 2652	2640	18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3504
- C:\Users\Admin\AppData\Local\Temp\18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe
  "C:\Users\Admin\AppData\Local\Temp\18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3236
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 300
      4⤵
      Program crash
      PID:516
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 952
    3⤵
    - Program crash
    PID:2764

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3236 -ip 3236
1⤵
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2640 -ip 2640
1⤵
PID:2440

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/2640-22-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/2640-2-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2640-3-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/2640-4-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2640-5-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2640-6-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2640-1-0x00000000045D0000-0x0000000004C28000-memory.dmp

Filesize
6.3MB

Download
memory/2640-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2640-19-0x0000000005AE0000-0x00000000064E0000-memory.dmp

Filesize
10.0MB

Download
memory/2640-13-0x0000000005AE0000-0x00000000064E0000-memory.dmp

Filesize
10.0MB

Download
memory/2652-23-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/2652-17-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/3504-8-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download
memory/3504-14-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download
memory/3504-9-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download

Analysis

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