Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dd5d35a987fb1e8…

MALICIOUS

PDF

47.1 KB Created: 2021-05-14 14:39:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9d24ea0b432cb184466b7de4fbf802b6 SHA-1: 18494bd862a9034771fdb2f77e492ecffe69d9ae SHA-256: 0dd5d35a987fb1e89c5da943ce9b5354b67df89f413c30304c87a638a20f897f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that point to known malicious redirectors, disguised as 'game hacks' or 'free currency' generators. The document body and heuristics indicate a lure to trick users into clicking these links, which likely leads to further malicious content or malware downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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 https://netcdn.xyz/app/431946152/hacked-roblox-accounts-list-game-hack In PDF document text
    • http://d-cision.nl/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D4 27260 bytes
SHA-256: 5814a0a88c0c461b7369a3e1a58f798e759c57b30da739aaca2081aad9581571
font_01_sfnt_off00008735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8735 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9446 18720 bytes
SHA-256: 4364cdcc1b4e431b6a7cfc51a44ccbde59c7a972961f4ddbd0871ac7a20bc545