General

  • Target

    AppFile.exe

  • Size

    727.6MB

  • Sample

    221127-kld3qada67

  • MD5

    e8eafc4826f22001b09f5cee3e46e54e

  • SHA1

    e66b4001dc5fc5183a78253a649619b815a9c873

  • SHA256

    56f3dcaa23c6f1f9fb9178fcf382168773b832236dc2955e24964e0acc6f0884

  • SHA512

    e08cf4e23eb3953ceb473f1175602d6ac3d7ab4677f44d971d0bedc7ca0c837acff523f9b78fe28b50d60ba3a9f39410fe4ac348410ddbd3b30d3d826ce02c3d

  • SSDEEP

    196608:mTdgDIK/MAVDXme7TshVez4GwrwTT19lGO5A/+:fP/JcWeruJ3

Malware Config

Extracted

Family

cryptbot

C2

http://kudxoq75.top/gate.php

Attributes
  • payload_url

    http://tamlar10.top/allude.dat

Targets

    • Target

      AppFile.exe

    • Size

      727.6MB

    • MD5

      e8eafc4826f22001b09f5cee3e46e54e

    • SHA1

      e66b4001dc5fc5183a78253a649619b815a9c873

    • SHA256

      56f3dcaa23c6f1f9fb9178fcf382168773b832236dc2955e24964e0acc6f0884

    • SHA512

      e08cf4e23eb3953ceb473f1175602d6ac3d7ab4677f44d971d0bedc7ca0c837acff523f9b78fe28b50d60ba3a9f39410fe4ac348410ddbd3b30d3d826ce02c3d

    • SSDEEP

      196608:mTdgDIK/MAVDXme7TshVez4GwrwTT19lGO5A/+:fP/JcWeruJ3

    • CryptBot

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

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

    • Executes dropped EXE

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • 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

    • Maps connected drives based on registry

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks