458547d88d079913200efe316cd61ddb14a7780d4c9b753da3e0526f92dcd754

General

Target
google.exe
Size 853KB
Sample261020-mcbmcaba75
SHA256 458547d88d079913200efe316cd61ddb14a7780d4c9b753da3e0526f92dcd754
MD5 cf27f681e6309f1c823e44c5470b31af
SHA1 8beeedd54966e26bf6e56a54f07103c201a69d1a
SHA512 72e954c3a0708553a96f60ef8fd948fa7bd641480e2ad04ae64147cbba25bee12121aec6d91365cd39b10b1c5b3e0f4e35a30ede222100cad853ac6058e3269d
SSDEEP 12288:yPb56K1bGCLa2s0hBl+riTowA9KStNeY3RIe5Qf5uhl3ZNXc3:obxe2syBOiTopZe0RIe8GPNXC
TLSH
T11805E7247B94AE01E5401A3E92BE1608D73264F22713AB47370BF7654D45AFEED2C3DA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\System32\\userinit.exe,C:\\Windows\\XD.exe"	google.exe

Executes dropped EXE 1 IoCs

pid	Process
4632	XD.exe

Looks up external IP address via web service 1 TTPs 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

discovery

Internet Connection Discovery

T1016.001

flow	ioc
1	api.ipify.org
2	api.ipify.org
3	api.ipify.org

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\XD.exe	google.exe

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2352	cmd.exe
3860	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	google.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	google.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	XD.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	XD.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2432	schtasks.exe
740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3712	google.exe
3712	google.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3712	google.exe
Token: SeDebugPrivilege	4632	XD.exe
Token: SeIncBasePriorityPrivilege	4632	XD.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 2704	3712	google.exe	83
PID 3712 wrote to memory of 2352	3712	google.exe	85
PID 3712 wrote to memory of 3860	3712	google.exe	86
PID 2352 wrote to memory of 2432	2352	cmd.exe	89
PID 3860 wrote to memory of 740	3860	cmd.exe	90

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\google.exe
"C:\Users\Admin\AppData\Local\Temp\google.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Windows\SYSTEM32\CMD.exe
  "CMD" netsh advfirewall firewall add rule name="3l`ISG|?S`k)SV" dir=in action=allow program="C:\Windows\XD.exe" enable=yes & exit
  2⤵
  PID:2704
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "svchost.exe" /tr "C:\Windows\XD.exe" /RL HIGHEST & exit
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 1 /tn "svchost.exe" /tr "C:\Windows\XD.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2432
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "svchost.exe" /tr "C:\Windows\XD.exe" /RL HIGHEST & exit
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:3860
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 30 /tn "svchost.exe" /tr "C:\Windows\XD.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:740

C:\Windows\XD.exe
C:\Windows\XD.exe
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
PID:4632

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Network Configuration Discovery

2

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

XD.exe

Path C:\Windows\XD.exe
Size 853KB
SHA256 458547d88d079913200efe316cd61ddb14a7780d4c9b753da3e0526f92dcd754
MD5 cf27f681e6309f1c823e44c5470b31af
SHA1 8beeedd54966e26bf6e56a54f07103c201a69d1a
SHA512 72e954c3a0708553a96f60ef8fd948fa7bd641480e2ad04ae64147cbba25bee12121aec6d91365cd39b10b1c5b3e0f4e35a30ede222100cad853ac6058e3269d
SSDEEP 12288:yPb56K1bGCLa2s0hBl+riTowA9KStNeY3RIe5Qf5uhl3ZNXc3:obxe2syBOiTopZe0RIe8GPNXC
TLSH
T11805E7247B94AE01E5401A3E92BE1608D73264F22713AB47370BF7654D45AFEED2C3DA
MD5 SHA1 SHA512 SSDEEP TLSH

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads