Malicious PDF — malware analysis report

Static analysis result for SHA-256 607a442797d5cd5c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 07:10:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b567cc483fe7c887d69ec5d569bf8d25 SHA-1: cdfae12ed4170048cc78ccbc25f8438b821299bf SHA-256: 607a442797d5cd5cec63e79bdeb6bfeb1e717749eddef0f849c5d90c5159cc9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, suggesting a phishing attempt to trick users into visiting a malicious site. While no scripts were explicitly extracted, the nature of the lure and the embedded URL strongly indicate a phishing or redirection attack.

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/good-games-on-roblox-free-game-hack In PDF document text
    • https://library.stikeswnpalu.ac.id/repository/super-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-robux-for-free-and-easy_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-2021-working_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/boku-no-hero-academia-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/cheats-for-roblox-running-simulator-2_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-free-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-heaven-daily-free-spins_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_off00003086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3086 22256 bytes
SHA-256: d28d26aecca4470246dd721cb5352a49840bbaa031aab4e6ea5fdcdf11e86001
font_01_sfnt_off000061f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 19084 bytes
SHA-256: 8e143e23c6ca2ed4b0d5b1370c1645be110467f0978e41cebbe05a672256b4e3

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