Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d58180309700f5…

MALICIOUS

PDF

34.2 KB Created: 2021-07-02 08:36:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 20ff650d9aff9bc83338a420ec29ad26 SHA-1: 35e5a93f78aa8d78a87c228d4c7ee7cdbb0823dc SHA-256: 36d58180309700f59bdfde3ddf9e9f7c2fd8c569682dc12d6f0d5826d4489677
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, specifically designed to lure users into downloading game-related cheats and currency generators. The primary lure is a link to 'Roblox Script Packs 2021 Free Game Hack', which is hosted on a known malicious redirector. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites.

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.co/app/431946152/roblox-script-packs-2021-free-game-hack In PDF document text
    • https://www.tena-g.hr/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-10-roblox-card_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-online-roblox-tycoons_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-account-taker_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-cheats-for-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/hack-the-computer-roblox_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-app-no-verification_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-hack-anyone-roblox_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-robux-giveaway-live_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_off00002cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD1 22336 bytes
SHA-256: 5c1fca249f92c5c765424b7f2bee6c5f95be6c9c6f361fd2be26882553133bf4
font_01_sfnt_off00005e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E76 19776 bytes
SHA-256: d48bde523635c3fa01e65cb831dcfe942f7b18a72aeea96e4f92eb5b87befdd5

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