Malicious PDF — malware analysis report

Static analysis result for SHA-256 01744061320ec134…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 19:58:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 46140e7e80a98b29f81b0ec33a1bc7a9 SHA-1: 89793df204de3e4de580fd8300c23f7118e5558e SHA-256: 01744061320ec1345586fa4eb6a496e8bd8eed7d9b91f9fb3665be656d0216c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and embedded links strongly suggest a lure to trick users into visiting potentially harmful websites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-free-wings-game-hack In PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-install-lego-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hacking-system-download_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/get-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-speed-hack-in-roblox-swordburst-2_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/como-instalar-hacks-para-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-full-colour-brown-pant-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-do-you-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-computer-hacking-game_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/flip-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/delta-roblox-hack-buy_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-rocitizens-cheat-codes_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-generator-without-survey_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/a-modded-day-hack-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3030 22692 bytes
SHA-256: 993757e2c9f6230f72b0e6013dad0dc483734b0edf839b9f7ba74f9e54c4e015
font_01_sfnt_off000062db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DB 18968 bytes
SHA-256: d91fe945418f85379dec2f7be6f1e2f87923cf86a97dd98021675ad5a3e5229b

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