Malicious PDF — malware analysis report

Static analysis result for SHA-256 759eca231e331058…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 19:50:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 56f488a0575ade2748c9462a1b22e75f SHA-1: 1111ebe574e1344b0469de1b78ce6c452cc266dd SHA-256: 759eca231e33105816d78ea55942559dca16a64fbdf8b026aed3e53043211ca4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to websites that offer game hacks and cheats, indicating a lure for users to download potentially malicious content. The heuristic firings confirm the presence of malicious redirector links and a general ML classification of maliciousness. While no scripts were explicitly extracted, the document body and embedded URLs suggest a common phishing or malware distribution 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.tw/app/479516143/minecraft-bedrock-hacks-game-hack In PDF document text
    • http://katalog.gemalibrary.net/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/i-killed-a-man-meme-hacke-d-a-roblox-server_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/hacks-for-the-ledegendary-sword-rpg-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/game-guardian-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/farmtown-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/roblox-in-cheat-ingine-work-in-pizza-place_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/pokemon-go-free-hack-apk_GM1094591345.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/robuxlove-net-free-robux_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_off000034a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A7 21732 bytes
SHA-256: 457a575832250fe8c2292ed030b01858338c3191b707a484f50fb014a74a58bf
font_01_sfnt_off00006425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6425 18560 bytes
SHA-256: bf91848bbe4a5734be67a8baa70ac7478c65c6d6f338040dd833668453e1921b

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