General

  • Target

    Activate it.exe

  • Size

    667KB

  • Sample

    211220-lg7d5sabc5

  • MD5

    c4a3cd58ec321eabe51e1c482b92441f

  • SHA1

    181a601f18cb5069ce9192b66d97b82765488b30

  • SHA256

    37fbe23d6ccaf64603921fd9e7f99d205b3ede0d98ff6c3c4355da905ec3ceb5

  • SHA512

    1b1bfdd164d9c8ed7a54d7a65de4e17ebfb26c8f872d0f7136f9e5dba54ca2591c28b9e14bfa8bad5316d133e73f8d24f44cdcb7c75f299ecf28d92137461340

Malware Config

Extracted

Family

cryptbot

C2

daifgz13.top

morjey01.top

Attributes
  • payload_url

    http://liotuo01.top/download.php?file=librid.exe

Targets

    • Target

      Activate it.exe

    • Size

      667KB

    • MD5

      c4a3cd58ec321eabe51e1c482b92441f

    • SHA1

      181a601f18cb5069ce9192b66d97b82765488b30

    • SHA256

      37fbe23d6ccaf64603921fd9e7f99d205b3ede0d98ff6c3c4355da905ec3ceb5

    • SHA512

      1b1bfdd164d9c8ed7a54d7a65de4e17ebfb26c8f872d0f7136f9e5dba54ca2591c28b9e14bfa8bad5316d133e73f8d24f44cdcb7c75f299ecf28d92137461340

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Deletes itself

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks