General

  • Target

    Documento--SII--33875.bin

  • Size

    833KB

  • Sample

    210310-blja9hjpae

  • MD5

    2ced2c14eece71c72c5e45e8a607bb4c

  • SHA1

    13a700a297a7e5697d69bb743c3b256ac10a14e2

  • SHA256

    4efd9a3fa2d25d6706213feb3299dd0f73777aad01217b9e3df046064fdbbb7e

  • SHA512

    199cb38d7f20f64b30d2cb2ba56dab6c0d3b2685d85a990c085060752071b9620d131c5c25bba9b3140c9816ae3515d6b7dbf794d3dd71db15bb8d3f4eb04f06

Malware Config

Targets

    • Target

      Documento--SII--33875.bin

    • Size

      833KB

    • MD5

      2ced2c14eece71c72c5e45e8a607bb4c

    • SHA1

      13a700a297a7e5697d69bb743c3b256ac10a14e2

    • SHA256

      4efd9a3fa2d25d6706213feb3299dd0f73777aad01217b9e3df046064fdbbb7e

    • SHA512

      199cb38d7f20f64b30d2cb2ba56dab6c0d3b2685d85a990c085060752071b9620d131c5c25bba9b3140c9816ae3515d6b7dbf794d3dd71db15bb8d3f4eb04f06

    • BetaBot

      Beta Bot is a Trojan that infects computers and disables Antivirus.

    • Modifies firewall policy service

    • Executes dropped EXE

    • Sets file execution options in registry

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

6
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

5
T1082

Collection

Data from Local System

1
T1005

Tasks