General

  • Target

    3adaf2bfb411db2b56601739580b8577a11089beffa33df2edbc9369c2e4faa7

  • Size

    8.4MB

  • Sample

    220212-kgvvnsbgbr

  • MD5

    01916ff0453c0730f2a6f4a822840722

  • SHA1

    1616f0667616e90847d0585923ba1af1773371ab

  • SHA256

    3adaf2bfb411db2b56601739580b8577a11089beffa33df2edbc9369c2e4faa7

  • SHA512

    b296150c4cecff1324db41a61ab18b3944a27972abf1f752720efe62f803f56f2d1a4917b96f560e28238dcfc472300749e090a45575a40772af98303226c8a4

Malware Config

Extracted

Family

cryptbot

C2

tisysc64.top

morvak06.top

Targets

    • Target

      3adaf2bfb411db2b56601739580b8577a11089beffa33df2edbc9369c2e4faa7

    • Size

      8.4MB

    • MD5

      01916ff0453c0730f2a6f4a822840722

    • SHA1

      1616f0667616e90847d0585923ba1af1773371ab

    • SHA256

      3adaf2bfb411db2b56601739580b8577a11089beffa33df2edbc9369c2e4faa7

    • SHA512

      b296150c4cecff1324db41a61ab18b3944a27972abf1f752720efe62f803f56f2d1a4917b96f560e28238dcfc472300749e090a45575a40772af98303226c8a4

    • CryptBot

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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • 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

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

2
T1005

Tasks