Malicious PDF — malware analysis report

Static analysis result for SHA-256 022a85817342eacd…

MALICIOUS

PDF

42.1 KB Created: 2021-05-15 10:06:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ed8eff86534bacbb9d1abfd265f6958b SHA-1: 6541d142164f007652604488f83de305f331da5e SHA-256: 022a85817342eacd3421a3b93f84ad6c9ccc1c39878ce1dbde412ca00413f92e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that appear to be part of a scam, offering free in-game currency for popular games like Roblox and Coin Master. The heuristic firings indicate these links lead to malicious redirectors and lure users with game hacks. While no scripts were explicitly extracted, the nature of the links and the lure suggest a phishing or scamming attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-robux-earn-game-hack In PDF document text
    • https://shimony.net/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004761.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4761 25752 bytes
SHA-256: 36eb31e1f27e19285bf80d202ae580bbe77317cec137434742b810699e86350d
font_01_sfnt_off0000821f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821F 18244 bytes
SHA-256: b6014a1bf70a80b5b7176295bd11553985cf3fccea183fb301f46a2e8db4226f