General

  • Target

    file.exe

  • Size

    525KB

  • Sample

    230421-swbz4sac5w

  • MD5

    f12995bb7df7dff1e9e017fbcfd982eb

  • SHA1

    ee2f50603ab07f5f2f2a10aaaed88a69c696ce32

  • SHA256

    640e544c960828067a6cedb824bd601e94ff11c3aa09d8077ba6c93972467b19

  • SHA512

    4fa2516c84638a43e1ce0d1b16b44a599cdc45aac73e06ab1578a1b12bb8c285a386d8430feaef058f95deaf01abd3611a69d8140b3b2fc84d21ea0c2b1a5182

  • SSDEEP

    6144:fqNjNoqNh3pdmR5wLciCkFFQx2EAjOBbbZ5xFdt7lbCb2OXkhU+ghYw1IOq:fqNjNYRAFFJhO5xCb2OXk6t14

Malware Config

Extracted

Family

cryptbot

C2

http://fygqwg52.top/gate.php

Attributes
  • payload_url

    http://qatfil07.top/huckle.dat

Extracted

Family

cryptbot

C2

http://fygqwg52.top/gate.php

Targets

    • Target

      file.exe

    • Size

      525KB

    • MD5

      f12995bb7df7dff1e9e017fbcfd982eb

    • SHA1

      ee2f50603ab07f5f2f2a10aaaed88a69c696ce32

    • SHA256

      640e544c960828067a6cedb824bd601e94ff11c3aa09d8077ba6c93972467b19

    • SHA512

      4fa2516c84638a43e1ce0d1b16b44a599cdc45aac73e06ab1578a1b12bb8c285a386d8430feaef058f95deaf01abd3611a69d8140b3b2fc84d21ea0c2b1a5182

    • SSDEEP

      6144:fqNjNoqNh3pdmR5wLciCkFFQx2EAjOBbbZ5xFdt7lbCb2OXkhU+ghYw1IOq:fqNjNYRAFFJhO5xCb2OXk6t14

    • CryptBot

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

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

    • Blocklisted process makes network request

    • 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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks