General

  • Target

    caf9b9f296433666a30b5bde61fa0278

  • Size

    2.0MB

  • Sample

    240315-knsznacc4y

  • MD5

    caf9b9f296433666a30b5bde61fa0278

  • SHA1

    40c7c64e9d5256f62f07ae471681b24e23afb2aa

  • SHA256

    ef658512590641c6579a006bff9cea0e0a56626e286a1e2b9a150ff0f4afdd2d

  • SHA512

    abc7ff765bde7fc439dc44b33a03638bfc4bc1021b211b76aa8866ef82b1b5e149dee1898995ad48fc522d33ce50e0e59d4d37328cfb5daddc8bd24e285bef4e

  • SSDEEP

    49152:yOek5aUwNp3jOPrcNOGB2t9UzzjWNegefRXaQ9OBHG72r:yoEP3iEye0n3DN

Malware Config

Extracted

Family

cryptbot

C2

verf02.top

Targets

    • Target

      caf9b9f296433666a30b5bde61fa0278

    • Size

      2.0MB

    • MD5

      caf9b9f296433666a30b5bde61fa0278

    • SHA1

      40c7c64e9d5256f62f07ae471681b24e23afb2aa

    • SHA256

      ef658512590641c6579a006bff9cea0e0a56626e286a1e2b9a150ff0f4afdd2d

    • SHA512

      abc7ff765bde7fc439dc44b33a03638bfc4bc1021b211b76aa8866ef82b1b5e149dee1898995ad48fc522d33ce50e0e59d4d37328cfb5daddc8bd24e285bef4e

    • SSDEEP

      49152:yOek5aUwNp3jOPrcNOGB2t9UzzjWNegefRXaQ9OBHG72r:yoEP3iEye0n3DN

    • 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.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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.

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks