Malicious PDF — malware analysis report

Static analysis result for SHA-256 9128c16fd9333e15…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 21:49:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d3d690f33599abea60a2f9b968e2eab4 SHA-1: d5baf54f5c15a8be36969a25dc707745929a7bbd SHA-256: 9128c16fd9333e15e1416b520b395c6d36a385e64fbe883d62301c2375e129ec
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 0.9980

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/835599320/tiktok-free-prints-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-blue-tshirt-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/be-a-parkour-ninja-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/hack-roblox-para-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/earn-free-robux-zone_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-an-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-ipod-touch_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/resourcly-ml-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/download-tool-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-jailbreak-hacker-transparent_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-some-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-mod-apk-latest-version-free-download_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
font_00_sfnt_off000032b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B0 22556 bytes
SHA-256: 1bb90a204549af1458c6352cdf782a76b959208ca32bbca43e8d5addf34ada41
font_01_sfnt_off000064d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D0 18128 bytes
SHA-256: 3f730c2198cb8c55c50db0f83a5859b107d29177f33331f16e544262df419b39

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