Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc12697617839dd…

MALICIOUS

PDF

34.2 KB Created: 2021-07-01 17:22:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 77ab730cf4ff9e2879f81728401a1a42 SHA-1: 6743c7adc377da194fdd651ac006c0a16fd771cc SHA-256: 7cc12697617839dd8f4e0cd905c586f06e6ea3b40b481f4caba78527279018ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, specifically advertising game hacks and free in-game items. The ML classifier also flagged this PDF as malicious with high confidence. The document body and heuristics indicate a lure to download or click on links related to game exploits, which is a common social engineering tactic.

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.co/app/431946152/how-to-hack-in-roblox-ninja-legends-game-hack In PDF document text
    • http://library.umuslim.ac.id//repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-free-items-instagram_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-you-get-free-robux-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/earn-points-earn-free-robux-by-completing-simple-tasks_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-100-working-no-verification_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/can-using-free-models-on-roblox-get-you-baanned_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-without-credit-card_GM431946152.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_off00002f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F50 21908 bytes
SHA-256: 2e12fb5f31937936c18a1c639d451c7ff53bcb0edcc579d341b5c6ebc8b65440
font_01_sfnt_off00005fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB7 19304 bytes
SHA-256: 2eea1050d06e7058cff254ca4495f07e6493bfb5aeab2d917e99601f9d3c07fa

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