General

  • Target

    Setup.exe

  • Size

    1.2MB

  • Sample

    211205-1mptlschgp

  • MD5

    bc8111b3644df2ecf6dd70f5747f94af

  • SHA1

    fd5206ca026e24f8fba5d2ef10389679d8f0a413

  • SHA256

    dbf6d9026dffdb6cfdd845aa094b5ffad2d8a2950db8fe1f02ccdd41f8318947

  • SHA512

    786e071e2355201ccd9e51d155231af72b7ce4d3c48becb51c04567f8105fd1a5191348fbce551386aac7bf3584351efab783d5ac417cd3a49d283f63dbb31df

Malware Config

Extracted

Family

cryptbot

C2

tisokf71.top

morypv07.top

Attributes
  • payload_url

    http://danevn10.top/download.php?file=avenin.exe

Targets

    • Target

      Setup.exe

    • Size

      1.2MB

    • MD5

      bc8111b3644df2ecf6dd70f5747f94af

    • SHA1

      fd5206ca026e24f8fba5d2ef10389679d8f0a413

    • SHA256

      dbf6d9026dffdb6cfdd845aa094b5ffad2d8a2950db8fe1f02ccdd41f8318947

    • SHA512

      786e071e2355201ccd9e51d155231af72b7ce4d3c48becb51c04567f8105fd1a5191348fbce551386aac7bf3584351efab783d5ac417cd3a49d283f63dbb31df

    • CryptBot

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

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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