Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eb305654b4ed61b…

MALICIOUS

PDF

35.2 KB Created: 2021-07-07 23:30:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 8845ad9475e8dedb41655739076018e7 SHA-1: 1957c212fe61d1303c7cabe226c02cf9a0ac8adb SHA-256: 5eb305654b4ed61b25790b7e4a78c366fb7c599415c39585316820c1f098fc05
160 Risk Score

Malware Insights

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

This PDF document contains a lure for free game hacks and generators, directing users to a malicious redirector URL. The ML classifier also flagged this PDF as malicious. The primary IOC is the redirector URL, which likely leads to a second-stage payload download.

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/how-to-get-minecraft-bedrock-edition-on-pc-for-free-game-hack In PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-l-robux-2021-obby_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-admin-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/cookie-hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-sign-up-for-free_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/hacks-for-roblox-working-weapons_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.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_off0000335d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x335D 22500 bytes
SHA-256: 834441179cca46b9b32d93bb95fa544522bdcc990943f1ae67386c652f605a76
font_01_sfnt_off00006570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6570 18876 bytes
SHA-256: 94c921ff1c0d610b484f208a6a4db1dab69e1648dc92a7c5b63bd0f931d21dd3

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