Malicious PDF — malware analysis report

Static analysis result for SHA-256 98df090b105430a2…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 05:47:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 35c02e04b156dbcd5247613bd61c3112 SHA-1: a4ab4ebee2ef9be3b5127c555fc0b511eac25e01 SHA-256: 98df090b105430a203cb9853aa05a8f39ba86679497687c10e2cadccc9289a4a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and generators to entice users. It contains an embedded URI that redirects to a malicious website, likely to download a secondary payload or phish for credentials. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a malicious redirector.

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/479516143/how-to-downgrade-minecraft-pe-game-hack PDF link annotation
    • https://lib.bunghatta.ac.id/app/repository/how-to-sell-items-for-robux-for-free_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/clickbait-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/pc-robux-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-make-a-roblox-shirt-for-free_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-shirt-template-png-free-shipping_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/easy-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/elysian-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-1b-on-roblox-and-patebin_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-skywars-infinite-coins-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/attack-on-titan-downfall-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-hack-avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/pastebin-roblox-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-bypass-human-verification-on-free-robux_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_off00003204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3204 22108 bytes
SHA-256: 8ff2b6c9940698c3baf62f0047f9378871b94abdc5b29fd746dbe331e84fd118
font_01_sfnt_off00006317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6317 18656 bytes
SHA-256: f671632c41bdcd8896512b89e0179723263a2bce0274879a7730ace5e1a9329c

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