General

  • Target

    .

  • Size

    147KB

  • Sample

    240519-sdwa2acd8y

  • MD5

    fd4e79cce3ebab70d477a46510be6ae0

  • SHA1

    14a88788ef301ee918a06a4915d7f50a70ed6c9d

  • SHA256

    ed41a9ed133a27f77a8cabe1dafbbdedef7060635b10ad2b5669f13e299ff246

  • SHA512

    601948f2c5f51d615840c2fb258c1b85bb4307c59ab20958436eb9a6c70c5c5f554e85b7bf79ff531a1de892976528195fcf2127e7ed10eb0f660d55cc555e74

  • SSDEEP

    1536:oRkud8TPV9vK4DNvGR4Dbll1qKf+30vD932Os4DOHhqiS:ykPT3V+CllQHKoHhqiS

Malware Config

Targets

    • Target

      .

    • Size

      147KB

    • MD5

      fd4e79cce3ebab70d477a46510be6ae0

    • SHA1

      14a88788ef301ee918a06a4915d7f50a70ed6c9d

    • SHA256

      ed41a9ed133a27f77a8cabe1dafbbdedef7060635b10ad2b5669f13e299ff246

    • SHA512

      601948f2c5f51d615840c2fb258c1b85bb4307c59ab20958436eb9a6c70c5c5f554e85b7bf79ff531a1de892976528195fcf2127e7ed10eb0f660d55cc555e74

    • SSDEEP

      1536:oRkud8TPV9vK4DNvGR4Dbll1qKf+30vD932Os4DOHhqiS:ykPT3V+CllQHKoHhqiS

    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • UPX packed file

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

6
T1112

File and Directory Permissions Modification

1
T1222

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

8
T1012

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Remote Services

1
T1021

Remote Desktop Protocol

1
T1021.001

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks