Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4767497020151ae…

MALICIOUS

PDF

45.3 KB Created: 2021-06-08 10:24:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ca252825856a030fcdd17f8e0ef51cff SHA-1: 13937fb3512d31429fd02a85a49bb9ffdf53010a SHA-256: f4767497020151ae03c62a33085edbf5ccab21747b8cec605e8d05c2087676e2
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free game hacks' to redirect users to external websites. The document body and heuristics indicate a link farm strategy, where multiple links point to other PDFs hosted on similar domains, all promising game-related cheats. The primary URL and numerous secondary URLs are indicative of a phishing or scam campaign designed to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/how-to-get-20210-robux-on-roblox-2021-for-free-game-hack PDF link annotation
    • http://sv-nahetal.de/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5146 26588 bytes
SHA-256: d0f84e5f8ccb34e245cb7e5057e74e0f3659725ff3aca481494e09498f220f73
font_01_sfnt_off00008ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CEB 18756 bytes
SHA-256: 02660ee52aff60869d9f606c271e25e299b067f73ef27d10c9643b5a4082e659

Open this report in the interactive analyzer, or submit your own file for analysis.