General

  • Target

    file.exe

  • Size

    4.6MB

  • Sample

    230822-b34v2aba5x

  • MD5

    998dc2c3d2f2c0f6d847c506fed46f8e

  • SHA1

    1474a98d04b18f769fa47ef2db80781d16a40cd5

  • SHA256

    1e662d2a9bc77dc09ff39c21dbd8f11968da7c1dea6f4bbcfc5216c0d8f8c8fd

  • SHA512

    9c0a5528e51c00eb10b405726f4627781e8943a5d1094282d4afa153f58b4833fd25f79d2d1f64592342c4ca9c8bba5d8116d1b2da3b4fde6db425c44b3b49af

  • SSDEEP

    98304:RHvpSqD9OLIdhBhdlBA5iqokpuqqmzZum0S463h:RxSzkdhBhS5vMHgx0pG

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Botnet

pub5

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Version

2022

C2

http://taibi.at/tmp/

http://01stroy.ru/tmp/

http://mal-net.com/tmp/

http://gromograd.ru/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Targets

    • Target

      file.exe

    • Size

      4.6MB

    • MD5

      998dc2c3d2f2c0f6d847c506fed46f8e

    • SHA1

      1474a98d04b18f769fa47ef2db80781d16a40cd5

    • SHA256

      1e662d2a9bc77dc09ff39c21dbd8f11968da7c1dea6f4bbcfc5216c0d8f8c8fd

    • SHA512

      9c0a5528e51c00eb10b405726f4627781e8943a5d1094282d4afa153f58b4833fd25f79d2d1f64592342c4ca9c8bba5d8116d1b2da3b4fde6db425c44b3b49af

    • SSDEEP

      98304:RHvpSqD9OLIdhBhdlBA5iqokpuqqmzZum0S463h:RxSzkdhBhS5vMHgx0pG

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • Adds Run key to start application

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks