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Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/06/2022, 01:36 UTC

General

  • Target

    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe

  • Size

    556KB

  • MD5

    9f7a5855b985ec4e17c6483456050e0d

  • SHA1

    af606f0c570da6a45345599eebd2db68f31cf79d

  • SHA256

    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28

  • SHA512

    22d95d9dbcd176bb6e941899616ddefd840c7f04f9eebf3ee1c5b43d88a9374e9b3a2be8021c45ba9b47a7c412836ed1162a3ed25f4dc8e31990d5dd8a2eb61a

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar log file 1 IoCs

    Detects a log file produced by Vidar.

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, 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.

  • Looks up external IP address via web service 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    "C:\Users\Admin\AppData\Local\Temp\41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1408

Network

  • flag-us
    DNS
    kolobkoproms.ug
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    Remote address:
    8.8.8.8:53
    Request
    kolobkoproms.ug
    IN A
    Response
  • flag-us
    DNS
    ip-api.com
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    Remote address:
    8.8.8.8:53
    Request
    ip-api.com
    IN A
    Response
    ip-api.com
    IN A
    208.95.112.1
  • flag-us
    POST
    http://ip-api.com/line/
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    Remote address:
    208.95.112.1:80
    Request
    POST /line/ HTTP/1.1
    Accept: text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1
    Accept-Language: ru-RU,ru;q=0.9,en;q=0.8
    Accept-Charset: iso-8859-1, utf-8, utf-16, *;q=0.1
    Accept-Encoding: deflate, gzip, x-gzip, identity, *;q=0
    Content-Type: multipart/form-data; boundary=1BEF0A57BE110FD467A
    Content-Length: 25
    Host: ip-api.com
    Connection: Keep-Alive
    Cache-Control: no-cache
    Response
    HTTP/1.1 200 OK
    Date: Sat, 25 Jun 2022 01:37:22 GMT
    Content-Type: text/plain; charset=utf-8
    Content-Length: 161
    Access-Control-Allow-Origin: *
    X-Ttl: 60
    X-Rl: 44
  • 208.95.112.1:80
    http://ip-api.com/line/
    http
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    807 B
    876 B
    7
    5

    HTTP Request

    POST http://ip-api.com/line/

    HTTP Response

    200
  • 8.8.8.8:53
    kolobkoproms.ug
    dns
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    61 B
    125 B
    1
    1

    DNS Request

    kolobkoproms.ug

  • 8.8.8.8:53
    ip-api.com
    dns
    41839e491ad6d2fef519c25fd4476cfc9749f49831dc6f53a8274e39e1f43e28.exe
    56 B
    72 B
    1
    1

    DNS Request

    ip-api.com

    DNS Response

    208.95.112.1

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1408-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB

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