Malicious PDF — malware analysis report

Static analysis result for SHA-256 2564443f72ac4210…

MALICIOUS

PDF

36.5 KB Created: 2021-06-28 23:52:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5fa1eae471277707698f565042d5fc3d SHA-1: c5d89cfb344486e16e9c820cb0d7e4b04a27d2b3 SHA-256: 2564443f72ac4210a0855da80325d2cd5628b9704bb3c4205e472d28e2246775
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to 'free game hacks' and 'free currency', strongly suggesting a phishing or malware distribution attempt. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the presence of numerous suspicious URLs indicate the document's primary purpose is to redirect users to malicious sites. No scripts were extracted, but the document structure and embedded links are sufficient to infer a malicious intent.

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.co/app/431946152/free-things-february-2021-roblox-game-hack PDF link annotation
    • http://repository.ummy.ac.id/repository/roblox-jailbreak-unlimited-free-money-hack_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/how-to-hack-peoples-account-on-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/mc-update_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/denis-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/robux-gratuit-sans-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/free-roblox-dislike-bots_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/robux-hack-link-in-desc_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-exploit-hack_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/how-to-hack-roblox-go-through-walls-with-shift-lock_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-free-candy-van-hack_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/roblox-online-free-no-download_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_off000034cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34CD 22876 bytes
SHA-256: 8f5def36f5b50516ffe233153538cad7941ca949be235dd3c157af669457b1f1
font_01_sfnt_off00006816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 19656 bytes
SHA-256: 516de84b60e667ff92d40af0eb75e8fedd019f0a32acc1a3beb16965974ec803

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