General

  • Target

    3aa1f98b275f4e2d8febb9e4478c5524.exe

  • Size

    758KB

  • Sample

    210727-57ev81dlk6

  • MD5

    3aa1f98b275f4e2d8febb9e4478c5524

  • SHA1

    112cdacb64629da494eee7cac8b3a7b606e78bfe

  • SHA256

    07efd513a02e8c30296f7b73488d9a74796849787df14af028266cd79c89d51f

  • SHA512

    b7ca79b24281d0b94668ec8812a725f5c084efd9901c353aafd51d76055e708bc66302367c0b4ebb4546b4f314983bb6160a5ba507b4601513d19e8aa6b11130

Malware Config

Extracted

Family

cryptbot

C2

ewaisg12.top

morvay01.top

Attributes
  • payload_url

    http://winezo01.top/download.php?file=lv.exe

Targets

    • Target

      3aa1f98b275f4e2d8febb9e4478c5524.exe

    • Size

      758KB

    • MD5

      3aa1f98b275f4e2d8febb9e4478c5524

    • SHA1

      112cdacb64629da494eee7cac8b3a7b606e78bfe

    • SHA256

      07efd513a02e8c30296f7b73488d9a74796849787df14af028266cd79c89d51f

    • SHA512

      b7ca79b24281d0b94668ec8812a725f5c084efd9901c353aafd51d76055e708bc66302367c0b4ebb4546b4f314983bb6160a5ba507b4601513d19e8aa6b11130

    • CryptBot

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

    • CryptBot Payload

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • 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

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks