General

  • Target

    91a8df2a703c7a45dd810b8ac711b3f1_JaffaCakes118

  • Size

    2.0MB

  • Sample

    240603-nwhqfaee93

  • MD5

    91a8df2a703c7a45dd810b8ac711b3f1

  • SHA1

    584704b833ff492ee99ed1cb9a13365a0993a539

  • SHA256

    12dd0096f6d94a29abc4f8da7203dfef2b3f8ce5a0fb4c959fe53caa3b26d4a3

  • SHA512

    d0d20c6896d602801d6cd5e6f779c43db6d5c620a90a87c208f2aa5a5e0b1e119235ba6c919a16069251828fb91af9dcaac7002e1bff80fca70c4cf28ee8762e

  • SSDEEP

    49152:2/t+m+UUUUUUJUUUUUUQ9XpiNfwG0chfhp838YbgBs0qm56TZylx+ZJMV:W+mJUUUUUJUUUUUUZVHhp83xEu6x+/

Malware Config

Extracted

Family

cryptbot

C2

nkoopw01.top

moraass06.top

Targets

    • Target

      91a8df2a703c7a45dd810b8ac711b3f1_JaffaCakes118

    • Size

      2.0MB

    • MD5

      91a8df2a703c7a45dd810b8ac711b3f1

    • SHA1

      584704b833ff492ee99ed1cb9a13365a0993a539

    • SHA256

      12dd0096f6d94a29abc4f8da7203dfef2b3f8ce5a0fb4c959fe53caa3b26d4a3

    • SHA512

      d0d20c6896d602801d6cd5e6f779c43db6d5c620a90a87c208f2aa5a5e0b1e119235ba6c919a16069251828fb91af9dcaac7002e1bff80fca70c4cf28ee8762e

    • SSDEEP

      49152:2/t+m+UUUUUUJUUUUUUQ9XpiNfwG0chfhp838YbgBs0qm56TZylx+ZJMV:W+mJUUUUUJUUUUUUZVHhp83xEu6x+/

    • CryptBot

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

    • CryptBot payload

    • 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.

    • 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