Malicious PDF — malware analysis report

Static analysis result for SHA-256 6121c02c3986a24e…

MALICIOUS

PDF

34.7 KB Created: 2021-07-08 15:54:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 33b9587d3afb64a78891c9a06bf88add SHA-1: ab5fcd96038db2bb6813e9fb48b471859f2a0c64 SHA-256: 6121c02c3986a24e8f327f183583b03acf0922a645ded879b5cffadaa49f987d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and cheats, directing users to a malicious URL. The primary heuristic indicates a game hack redirect lure, and the document body contains the malicious URL. No scripts were extracted from this sample, but the embedded URLs suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/how-to-hack-coin-master-pc-game-hack PDF link annotation
    • https://tnupacktour.com.tw/image/data/files/roblox-games-that-have-free-radio_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-bugatti-roblox_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/super-easy-free-robux_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-pc-game-free-download_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-2021-cheat-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/hack-a-game_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-hack-roblox-owner_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/robloxjailbreakfreehacks_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/master-coin-free_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/rbxboost-earn-free-roblox-robux-by-completing-surveys_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.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_off000031bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BD 22812 bytes
SHA-256: a783fb70195d604401b49427e5c5ea63941cb4630ec0ba78e84440bb64f20e03
font_01_sfnt_off000064e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E9 18320 bytes
SHA-256: 7b38b525648f52fd16d6e0e97132289892bc4925aa7b4ec9b918ecc376b61b1e

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