General

  • Target

    396ad8d37a4ed7751a9f142a0c23818c.exe

  • Size

    3MB

  • Sample

    230402-sa124sab9z

  • MD5

    396ad8d37a4ed7751a9f142a0c23818c

  • SHA1

    91e007c643bda9553e57de1c3c4aa87e15d244ea

  • SHA256

    9d7b0ff63257985d614d7503b396b8d9ce6c2fcb5bcecbcbfcfbad9560da9ffe

  • SHA512

    09e87973ccc09af79c554a38d8e87656a39c6209ce68d36636fc28e120709ebefeab8e4368d165d89d77d71d6f23e2b8af9702e3bd2ae42fa6f85475cf4d2462

  • SSDEEP

    49152:yKY2GhhspR5RKJsBwQcE7Eg+O1SS6xEsSQcb0kIFs9ke:yKY2Ghh0AqrNRRG8

Malware Config

Extracted

Family

cryptbot

C2

http://ivyves72.top/gate.php

Attributes
  • payload_url

    http://womuyt10.top/thraep.dat

Targets

    • Target

      396ad8d37a4ed7751a9f142a0c23818c.exe

    • Size

      3MB

    • MD5

      396ad8d37a4ed7751a9f142a0c23818c

    • SHA1

      91e007c643bda9553e57de1c3c4aa87e15d244ea

    • SHA256

      9d7b0ff63257985d614d7503b396b8d9ce6c2fcb5bcecbcbfcfbad9560da9ffe

    • SHA512

      09e87973ccc09af79c554a38d8e87656a39c6209ce68d36636fc28e120709ebefeab8e4368d165d89d77d71d6f23e2b8af9702e3bd2ae42fa6f85475cf4d2462

    • SSDEEP

      49152:yKY2GhhspR5RKJsBwQcE7Eg+O1SS6xEsSQcb0kIFs9ke:yKY2Ghh0AqrNRRG8

    • CryptBot

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

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

    • Checks BIOS information in registry

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

    • Deletes itself

    • Executes dropped EXE

    • 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

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks