Analysis

  • max time kernel
    166s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    08-11-2021 10:07

General

  • Target

    096fc162ed138cc3d9ee62631325c0d7d2957d6a1b7eec705da59004b83fd6c8.exe

  • Size

    4MB

  • MD5

    a6ba5fc790a5f555b8b6f28e7837253c

  • SHA1

    ea77f8f24c106948eb398d682826afde02c7270d

  • SHA256

    096fc162ed138cc3d9ee62631325c0d7d2957d6a1b7eec705da59004b83fd6c8

  • SHA512

    5f77a237fdeffaaefac2decb9f08fdba7d909709c3796ef3142922559a5e8c25c9c0856088c9ce9f2025dcd91aa25b48f891ae9cb1d1a28275a2ad43f48f8fa2

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://directorycart.com/upload/

http://tierzahnarzt.at/upload/

http://streetofcards.com/upload/

http://ycdfzd.com/upload/

http://successcoachceo.com/upload/

http://uhvu.cn/upload/

http://japanarticle.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

media23

C2

91.121.67.60:23325

Signatures

  • Modifies Windows Defender Real-time Protection settings ⋅ 3 TTPs
  • Process spawned unexpected child process ⋅ 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • RedLine

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

  • RedLine Payload ⋅ 5 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess ⋅ 1 IoCs
  • suricata: ET MALWARE ClipBanker Variant Activity (POST)

    suricata: ET MALWARE ClipBanker Variant Activity (POST)

  • suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

    suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

  • ASPack v2.12-2.42 ⋅ 6 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE ⋅ 12 IoCs
  • Checks computer location settings ⋅ 2 TTPs 1 IoCs

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

  • Loads dropped DLL ⋅ 52 IoCs
  • Reads user/profile data of web browsers ⋅ 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting ⋅ 2 TTPs
  • Checks installed software on the system ⋅ 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension ⋅ 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 ⋅ 1 TTPs
  • Looks up external IP address via web service ⋅ 3 IoCs

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

  • Drops file in System32 directory ⋅ 9 IoCs
  • Suspicious use of SetThreadContext ⋅ 2 IoCs
  • Enumerates physical storage devices ⋅ 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash ⋅ 1 IoCs
  • Checks SCSI registry key(s) ⋅ 3 TTPs 3 IoCs

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

  • Checks processor information in registry ⋅ 2 TTPs 2 IoCs

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

  • Kills process with taskkill ⋅ 2 IoCs
  • Modifies Internet Explorer settings ⋅ 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS ⋅ 64 IoCs
  • Modifies registry class ⋅ 16 IoCs