Malicious PDF — malware analysis report

Static analysis result for SHA-256 a959802721e834c7…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 17:01:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: aba10e3a4a6cbe6b9c0061ed27483a4a SHA-1: bd1303558be6620a8180045b0999393d6f45c08f SHA-256: a959802721e834c70d8bef688d9ddce0e610784ad5ea49d31f5c662bdd5f8f66
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a clipboard-command (paste-and-run) lure. 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 0.9980

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/431946152/roblox-gang-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/pubg-uc-details_GM1330123889.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-cr-r-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/tiktok-free-quotes_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-just-for-singing-up_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/run-free-roblox-id_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/get-free-robux-on-roblox-with-coputer_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-hacks-money_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/veil-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/ho-to-gte-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-welcome-to-bloxburg-money-hack-lua_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-exploit-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-coin-hack_GM406889139.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
stream_002_off0000300a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x300A 23272 bytes
SHA-256: 4e97ff14fdf125b60c2af832113582264eb79f13fbc012fb96610ba2538ee531
font_01_sfnt_off000064d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 18484 bytes
SHA-256: 29f392fad5126cc1b661e988d151d83fa60bd2500465ef97b0a10363f3654a7c

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