Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc64d1db60dde33…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 13:29:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 695b6281ddb51372242cc2d1617d2a55 SHA-1: da8ecf255371c5b58e4a5822d1b593d3f62773ef SHA-256: 0cc64d1db60dde33440904e7dbaec8915f0b54401598e7a422a798f26af78099
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts further malicious PDF files. The document body contains text and URLs related to these lures, indicating a phishing or scam attempt.

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-free-roblox-money-game-hack In PDF document text
    • https://htdvn.com/public/upload/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/774-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/pubg-4-uccom_GM1330123889.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-game-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0F 21864 bytes
SHA-256: 0494a83d0db84a850190aaa089d53a210c7e128e05d6f30cb4e040a380fb05e2
font_01_sfnt_off00005f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 19028 bytes
SHA-256: 0ba5efb67863313c4a37bc469863e6642702d91bd4a850e7e94ed7fd03e0f04c

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