General

  • Target

    9ECC56C60274314E5D1C62F5F51FEE28.exe

  • Size

    3.3MB

  • Sample

    210515-c743r25bra

  • MD5

    9ecc56c60274314e5d1c62f5f51fee28

  • SHA1

    3911b8fd0bb8cf4c5346ebe5b9785d0a833e004c

  • SHA256

    2c32dcb54c310daf509527d74de8ab4cb7b45425fa543a5df22afd1e9bd00fd5

  • SHA512

    6bd7d06eb752acd6e173848ddeb30447b49286aa7ecdfa810b1cacc1e71385ed8fab8cc11b22511fe5d6a398af6d5eb224cf8da0f47a63c51bea18478cc688ca

Malware Config

Extracted

Family

redline

Botnet

source1

C2

199.195.251.96:43073

Extracted

Family

smokeloader

Version

2020

C2

http://khaleelahmed.com/upload/

http://twvickiassociation.com/upload/

http://www20833.com/upload/

http://cocinasintonterias.com/upload/

http://masaofukunaga.com/upload/

http://gnckids.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      9ECC56C60274314E5D1C62F5F51FEE28.exe

    • Size

      3.3MB

    • MD5

      9ecc56c60274314e5d1c62f5f51fee28

    • SHA1

      3911b8fd0bb8cf4c5346ebe5b9785d0a833e004c

    • SHA256

      2c32dcb54c310daf509527d74de8ab4cb7b45425fa543a5df22afd1e9bd00fd5

    • SHA512

      6bd7d06eb752acd6e173848ddeb30447b49286aa7ecdfa810b1cacc1e71385ed8fab8cc11b22511fe5d6a398af6d5eb224cf8da0f47a63c51bea18478cc688ca

    • PlugX

      PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    • 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.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Executes dropped EXE

    • UPX packed file

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

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks