General

  • Target

    81080e6129580f31d41dba59ec69e8bef38736dfcc223d50a3b4aaccf711046f

  • Size

    991KB

  • Sample

    240522-cfzhgagg87

  • MD5

    f0f6f5969c92b6bc9cc7b694e597980b

  • SHA1

    693413456cb6af512950a84a6f0fa056b45e1099

  • SHA256

    81080e6129580f31d41dba59ec69e8bef38736dfcc223d50a3b4aaccf711046f

  • SHA512

    48782629c8c10676e15f0d3696cc2d498c6270204a7385072db0a69a2aaa6fa0b32f38ba93ac177a69494ca5d7e08c89e7c7a81e662bacc8902721a45d62d90f

  • SSDEEP

    24576:bv2BLHSn6q1v8c5YNei+1ZC58vH8sSMv+WFzQa1bek:bxn316Nei+1ZCQ8sj+WF1N

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Targets

    • Target

      81080e6129580f31d41dba59ec69e8bef38736dfcc223d50a3b4aaccf711046f

    • Size

      991KB

    • MD5

      f0f6f5969c92b6bc9cc7b694e597980b

    • SHA1

      693413456cb6af512950a84a6f0fa056b45e1099

    • SHA256

      81080e6129580f31d41dba59ec69e8bef38736dfcc223d50a3b4aaccf711046f

    • SHA512

      48782629c8c10676e15f0d3696cc2d498c6270204a7385072db0a69a2aaa6fa0b32f38ba93ac177a69494ca5d7e08c89e7c7a81e662bacc8902721a45d62d90f

    • SSDEEP

      24576:bv2BLHSn6q1v8c5YNei+1ZC58vH8sSMv+WFzQa1bek:bxn316Nei+1ZCQ8sj+WF1N

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Sality

      Sality is backdoor written in C++, first discovered in 2003.

    • UAC bypass

    • Windows security bypass

    • Detects executables containing possible sandbox analysis VM usernames

    • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality

    • UPX dump on OEP (original entry point)

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Modify Registry

7
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

4
T1562

Disable or Modify Tools

3
T1562.001

Discovery

Query Registry

3
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Replication Through Removable Media

1
T1091

Impact

Service Stop

1
T1489

Tasks