General

  • Target

    mixshop_20211223-091016

  • Size

    2.7MB

  • Sample

    211223-lfwagsabhq

  • MD5

    8a1baccbc8382a7eca8c99ee981f6776

  • SHA1

    dc54547642e7f514855ca1afd40a58a8377975af

  • SHA256

    eaef807dc7cdfd704cf47b74a667b55004de9171fdb8b949c451274569549d41

  • SHA512

    c1145a999b422d1548b88e4c7fd6fe790034bb7374a1c1803571366b16e01e8d9a3f3274c60e421b783feaabf9726d137889ca49579a5d300f9b2fbb929eb01f

Malware Config

Extracted

Family

cryptbot

C2

␴ҋ脤ӄ

␼

dainfe42.top

morvtu04.top

ᾷ잁

Targets

    • Target

      mixshop_20211223-091016

    • Size

      2.7MB

    • MD5

      8a1baccbc8382a7eca8c99ee981f6776

    • SHA1

      dc54547642e7f514855ca1afd40a58a8377975af

    • SHA256

      eaef807dc7cdfd704cf47b74a667b55004de9171fdb8b949c451274569549d41

    • SHA512

      c1145a999b422d1548b88e4c7fd6fe790034bb7374a1c1803571366b16e01e8d9a3f3274c60e421b783feaabf9726d137889ca49579a5d300f9b2fbb929eb01f

    • 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.

    • Deletes itself

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks