General

  • Target

    e493d514a5154df3ce530a3dee1d8d07.exe

  • Size

    648KB

  • Sample

    210712-b4g536k7ka

  • MD5

    e493d514a5154df3ce530a3dee1d8d07

  • SHA1

    fba1795a04b5d6e932213b85f68239e0bd086c1f

  • SHA256

    1913b57379e19d7d05f7a55160343d7d081fe01c668b0652097311a0e9f57940

  • SHA512

    117f429620d1f2fb268fa9deb0cdcc441e2781ae676121ba28030435e989127fe90a76fd725b4ac99ea5ae2b0fa8769eb93993340a973b6e94b587f93dbeab83

Malware Config

Extracted

Family

cryptbot

C2

aledna72.top

Attributes
  • payload_url

    http://otivzt10.top/download.php?file=lv.exe

Targets

    • Target

      e493d514a5154df3ce530a3dee1d8d07.exe

    • Size

      648KB

    • MD5

      e493d514a5154df3ce530a3dee1d8d07

    • SHA1

      fba1795a04b5d6e932213b85f68239e0bd086c1f

    • SHA256

      1913b57379e19d7d05f7a55160343d7d081fe01c668b0652097311a0e9f57940

    • SHA512

      117f429620d1f2fb268fa9deb0cdcc441e2781ae676121ba28030435e989127fe90a76fd725b4ac99ea5ae2b0fa8769eb93993340a973b6e94b587f93dbeab83

    • 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