General

  • Target

    078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

  • Size

    703KB

  • Sample

    221124-astfwaad81

  • MD5

    cac2bd81251cee7a5e5d5e06210bc9ec

  • SHA1

    7ce442841a27ae9f3500909bbea70895bd3d456b

  • SHA256

    078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

  • SHA512

    465c29ddafa10c7a86d615ec8130a50d0e39ea41721e5bfee49d4674c931659520622c21613d6680932276314ac50c676fcd5d28905388cd48a90f6a6aeb811a

  • SSDEEP

    1536:cd04boUzdIBsZUpUQSe1sjL/91IqmM4nouy8:cdJboUpEsueFssP11I5Mwout

Malware Config

Targets

    • Target

      078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

    • Size

      703KB

    • MD5

      cac2bd81251cee7a5e5d5e06210bc9ec

    • SHA1

      7ce442841a27ae9f3500909bbea70895bd3d456b

    • SHA256

      078bf6fad81012be297caf2e1dc968b46013d59a530e02d4f1045b40f6a5d8de

    • SHA512

      465c29ddafa10c7a86d615ec8130a50d0e39ea41721e5bfee49d4674c931659520622c21613d6680932276314ac50c676fcd5d28905388cd48a90f6a6aeb811a

    • SSDEEP

      1536:cd04boUzdIBsZUpUQSe1sjL/91IqmM4nouy8:cdJboUpEsueFssP11I5Mwout

    • Modifies firewall policy service

    • Modifies security service

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • UAC bypass

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Sets file execution options in registry

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

12
T1112

Hidden Files and Directories

2
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Tasks