Overview

overview

10

Static

static

3

02cb5c5e7e...07.exe

windows7-x64

10

02cb5c5e7e...07.exe

windows10-2004-x64

9

Sharing

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General

  • Target
    02cb5c5e7e3c2ab21849927122d00aff871db962752410a303728394fd39f607
  • Size 2.2MB
  • Sample240515-ws2cdach5z
  • SHA256 02cb5c5e7e3c2ab21849927122d00aff871db962752410a303728394fd39f607
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
zloaderbotnetevasionpersistencetrojan

Malware Config

Targets

    • Target
      02cb5c5e7e3c2ab21849927122d00aff871db962752410a303728394fd39f607
    • Size 2.2MB
    • SHA256 02cb5c5e7e3c2ab21849927122d00aff871db962752410a303728394fd39f607
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    zloaderbotnetevasionpersistencetrojan

    • Zloader, Terdot, DELoader, ZeusSphinx

      Zloader is a malware strain that was initially discovered back in August 2015.

      trojanbotnetzloader

    • UPX dump on OEP (original entry point)

    • Adds policy Run key to start application

      persistence

    • Disables RegEdit via registry modification

      evasion

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Modifies WinLogon

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

4
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Tasks