General

  • Target

    98210e2d9b34c77ecf43909546294cc4.bin

  • Size

    685KB

  • Sample

    230317-jkpx6aha2w

  • MD5

    1f5c304b3444024dc96efebb682300e6

  • SHA1

    4b54106b83913f6d3852c65cdf639e2f775360b7

  • SHA256

    3a585a8cf432715f635ddf4851be290a25719c224c1d3c32ae5ccc926b6a809e

  • SHA512

    138c8b38469254d9ae2a3c2e705cb0f93f77e21ef85326a638a714f82a5b8fc627660d1f3f98777a5a4ec4dd9ab734f85cbdb1cf446fdc4cef09bb2e5210c91f

  • SSDEEP

    12288:C+qEVe7bIuqzfR44Mgo1UcPq0Pw8p/Jwty2ALgq50HF+Cz5WGkKMfj8:C+qEVeAPazgoRq+w8p/J8q50l+CXjMfA

Malware Config

Extracted

Family

cryptbot

C2

http://erniku42.top/gate.php

Attributes
  • payload_url

    http://ovapfa05.top/unfele

Targets

    • Target

      7ccda59528c0151bc9f11b7f25f8291d99bcf541488c009ef14e2a104e6f0c5d.exe

    • Size

      791KB

    • MD5

      98210e2d9b34c77ecf43909546294cc4

    • SHA1

      2882ee363adc9fce181b202459897f0f82987807

    • SHA256

      7ccda59528c0151bc9f11b7f25f8291d99bcf541488c009ef14e2a104e6f0c5d

    • SHA512

      b72772bfbb6c541e9263fd7008447084b4da58c0c4ffe7a4ea50ab029ab74f294388e51267f9d8136c54c099a5d369718e5bba98809acd506068bf512da39d4b

    • SSDEEP

      24576:wosWSM18jjQ34deYJRQw6fVHsxIeMrjXqCC6xMjvFCPH43H:LsWSMy/QIzQwsVHsxIeMqCCEMjyM

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

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