Malicious PDF — malware analysis report

Static analysis result for SHA-256 0acac658e9814229…

MALICIOUS

PDF

50.5 KB Created: 2021-05-13 00:14:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 93f64d64fbbd2ace9f9a0612e8187f24 SHA-1: 62d247693c3b16c038f9f2f00e54ef5e9c3ec0e7 SHA-256: 0acac658e981422961c1f466d3a73ce51811b595baceadb145ab6326f093d4b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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 https://netcdn.xyz/app/406889139/unlimited-free-spins-coin-master-game-hack PDF link annotation
    • http://techmobil.pl/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-minecraft-server-hosting-24-7_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d35.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D35 25444 bytes
SHA-256: ec79bde0025adeb280e5090dadfdbb16d81157d472d6807b461a34e8f0a44718
font_01_sfnt_off00008724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8724 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off000094c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C5 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009eb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB5 19660 bytes
SHA-256: cf3767286d441edcc77d71f99ce1193a7726be2ebf29aa7ecdf9f1e30627ae3a

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