General

  • Target

    d066ad4ead3311db15867482abe1925b.exe

  • Size

    656KB

  • Sample

    210715-jxbafj4kxn

  • MD5

    d066ad4ead3311db15867482abe1925b

  • SHA1

    c06c8c4aeed35c7d8a523bb9d489fbceca324dbc

  • SHA256

    af8df57ba3941ed8fa89543e4e98f2da5dfe7a0efaaa72aaca4c54ea9f5ccc58

  • SHA512

    c7f8cd55b69ada93dfd63f23e73636dc503e38545d9c7ee41563009c8879ce8e38f24b7de330e4891e745f0697c754d3d60befa3b23a1bc3d3cb3d2060101710

Malware Config

Extracted

Family

cryptbot

C2

wymbhy32.top

moriue03.top

Attributes
  • payload_url

    http://hofxuo04.top/download.php?file=lv.exe

Targets

    • Target

      d066ad4ead3311db15867482abe1925b.exe

    • Size

      656KB

    • MD5

      d066ad4ead3311db15867482abe1925b

    • SHA1

      c06c8c4aeed35c7d8a523bb9d489fbceca324dbc

    • SHA256

      af8df57ba3941ed8fa89543e4e98f2da5dfe7a0efaaa72aaca4c54ea9f5ccc58

    • SHA512

      c7f8cd55b69ada93dfd63f23e73636dc503e38545d9c7ee41563009c8879ce8e38f24b7de330e4891e745f0697c754d3d60befa3b23a1bc3d3cb3d2060101710

    • CryptBot

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

    • CryptBot Payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks