Malicious PDF — malware analysis report

Static analysis result for SHA-256 865de42a58015958…

MALICIOUS

PDF

24.8 KB Created: 2021-06-29 19:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 121ec72d097b21ac8698c8dc24b5583c SHA-1: cd9d8b15e37602d1039da982dc5ac25c01b0c503 SHA-256: 865de42a58015958b0a2c24ae20cc7ae01e1084b2733e83e2452cff00496f304
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector infrastructure. The primary lure appears to be related to 'free Robux' or game hacks, a common social engineering tactic. The document's structure and embedded URLs suggest it is designed to redirect users to potentially malicious websites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 3

  • 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.
  • 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.co/app/431946152/games-that-give-you-free-robux-2021-game-hack In PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-into-the-big-brother-house-roblox_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-games-that-get-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/cheat-robux-2021-pc_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-make-a-robux-hack-code_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-no-download-no-survey-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-audio-hacker-in-the-server_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/regal-world-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-codes_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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3614 21620 bytes
SHA-256: c398efd79b1cad9f07dd459d6597395236af04a41b11dbc6b7b3b8f4cf399bbb

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