Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02ed498e10e39d0…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 13:19:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 764aa8956b0b81f9af98c7ef39b21477 SHA-1: 30e248f07728e786d475122f3246bcd34fbd2852 SHA-256: c02ed498e10e39d0033c61bc69b65edbe52582b6ac1e14537c5d758c85e680b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into downloading game hacks or cheats, redirecting them to malicious infrastructure. The primary redirector URL is http://netcdn.tw/app/479516143/free-minecraft-mods-for-xbox-one-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow, likely intended to deliver a secondary payload or phish for credentials.

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/479516143/free-minecraft-mods-for-xbox-one-game-hack In PDF document text
    • http://atrax.hr/files/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-pet-simulator-how-to-get-free-pets_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/site-de-hack-roblox_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-buff-shirt-free_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/does-roblox-ever-give-out-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/this-group-gives-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/hhack-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/cheat-roblox-kick_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-without-human-verification-ipad_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_off000032a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A5 22408 bytes
SHA-256: a81e09c62cf975bd47c2ef3d035a7609767179df11b45dea6d303c484cd458e3
font_01_sfnt_off00006401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6401 18768 bytes
SHA-256: 47bb3be3d9075fb99bbeaeccb589831d20ece53da325156c02f517dd299aae8f