Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5a5696dc18650b…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 10:15:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 1cebb183eed3437272a78ccc396a624a SHA-1: bd7796571549bd27b1406164cb31df33dea65f98 SHA-256: ce5a5696dc18650bbbeed30bc3b795d8f8152bd680ffe6ef8f8a28a99ec6a610
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting game hacks and free spins for popular games. The heuristic firings confirm these links lead to known malicious redirectors and a lure for game hacks. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at driving traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.tw/app/406889139/coin-master-free-spins--coins-2021-game-hack In PDF document text
    • http://lib.unar.ac.id/repository/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/filter-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/weird-roblox_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/roblox-cheat-engine-health-hack-csgo_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/skin-for-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD7 22796 bytes
SHA-256: 1414cebcc990d7422ade6715212c85ed395fa951b62d68fa07e1e30a6d145e4f
font_01_sfnt_off000062ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 18576 bytes
SHA-256: a126babb65047b6746617d7d7f27a00b485a4a24246b96e57b4b97a03add53e0

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