Analysis

  • max time kernel
    158s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    10-11-2021 14:50

General

  • Target

    cbf31d825ac364f97420cb6523bca7bbcab24292e93fc9e946e64cb446291ad2.exe

  • Size

    5MB

  • MD5

    5802bc4fd763cd759b7875e94f9f2eaf

  • SHA1

    91eaa6e6f9b5c52a2b91806bfbf513ed336e3f6a

  • SHA256

    cbf31d825ac364f97420cb6523bca7bbcab24292e93fc9e946e64cb446291ad2

  • SHA512

    91f9c64c61456c91e74cad1c8a5f9aca54e44f00612085721c1b2ad8e9305679f3ed562939b0505843c06b619ab8f4818f3a537e33c122a02569cf080d13181a

Malware Config

Extracted

Family

socelars

C2

http://www.iyiqian.com/

http://www.hbgents.top/

http://www.rsnzhy.com/

http://www.efxety.top/

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

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 ⋅ 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Socelars

    Socelars is an infostealer targeting browser cookies and credit card credentials.

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

    suricata: ET MALWARE ClipBanker Variant Activity (POST)

  • suricata: ET MALWARE GCleaner Downloader Activity M5

    suricata: ET MALWARE GCleaner Downloader Activity M5

  • 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

  • Downloads MZ/PE file
  • Executes dropped EXE ⋅ 31 IoCs
  • Checks computer location settings ⋅ 2 TTPs 2 IoCs

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

  • Loads dropped DLL ⋅ 64 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.

  • Legitimate hosting services abused for malware hosting/C2 ⋅ 1 TTPs
  • Looks up external IP address via web service ⋅ 10 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Drops file in System32 directory ⋅ 9 IoCs
  • Suspicious use of SetThreadContext ⋅ 4 IoCs
  • autoit_exe ⋅ 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Enumerates physical storage devices ⋅ 1 TTPs

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

  • Program crash ⋅ 3 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 ⋅ 4 IoCs
  • Modifies Internet Explorer settings ⋅ 1 TTPs 35 IoCs
  • Modifies data under HKEY_USERS ⋅ 64 IoCs
  • Modifies registry class ⋅ 16 IoCs