Malicious PDF — malware analysis report

Static analysis result for SHA-256 08172dd0c1c1cf54…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 02:19:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b03daa0bf299b67c409865117efe8d11 SHA-1: 32902416f8ed07f825f6c411acc4bb87ac5d1d18 SHA-256: 08172dd0c1c1cf54f9f1411c948af8693b36660288b2441b4f445c6163189772
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The primary redirector URL is http://netcdn.tw/app/479516143/how-do-you-hack-minecraft-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further exploitation.

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/479516143/how-do-you-hack-minecraft-game-hack In PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-free-champion-shirt_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-2021-actually-working_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-make-a-roblox-thumbnail-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/one-hit-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-candy-roblox-id_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-no-errores_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hack-pack-roblox-level-7_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/youtube-how-to-get-free-gear-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-into-getting-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-hack-2021-june_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-dinosautr-simulator-hacks_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-item-hacks_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-roblox-mad-city-gui_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/get-free-robux-items-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/kengit-films-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/get-robux-free-legal_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-hack-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-obux_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_off00002f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F20 21924 bytes
SHA-256: 6b0b4ac3d44a99027026fc8fd9892568f743d4dbe4cbfaa3c111d2ff30a08ac6
font_01_sfnt_off00005f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F13 18804 bytes
SHA-256: 12a5592d1a5b4d5f1871214198de719998814125497f597bc50e969619909f04

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