General

  • Target

    483b1fb169036064fe3e97a40419b570.exe

  • Size

    345KB

  • Sample

    210624-cdmer2tbc6

  • MD5

    483b1fb169036064fe3e97a40419b570

  • SHA1

    4592b7c56654ce29b1facb5461ba20529a825fb8

  • SHA256

    ae70b2dbfa535cfa3e910e8635fb2069c41c3bd0da9e66b066374774f5deac4b

  • SHA512

    082f357964efd08e96efa4ffe743a908187f7321cc2aa29d90bd36236f90f1365f25430deccd9ba1e7204141f1f7ee4123a9359a50ce0054e8995ae5d0b58180

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://ppcspb.com/upload/

http://mebbing.com/upload/

http://twcamel.com/upload/

http://howdycash.com/upload/

http://lahuertasonora.com/upload/

http://kpotiques.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

sew

C2

185.215.113.64:8765

Targets

    • Target

      483b1fb169036064fe3e97a40419b570.exe

    • Size

      345KB

    • MD5

      483b1fb169036064fe3e97a40419b570

    • SHA1

      4592b7c56654ce29b1facb5461ba20529a825fb8

    • SHA256

      ae70b2dbfa535cfa3e910e8635fb2069c41c3bd0da9e66b066374774f5deac4b

    • SHA512

      082f357964efd08e96efa4ffe743a908187f7321cc2aa29d90bd36236f90f1365f25430deccd9ba1e7204141f1f7ee4123a9359a50ce0054e8995ae5d0b58180

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Tasks