Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80381d7bd8a9d47…

MALICIOUS

PDF

34.4 KB Created: 2021-07-07 20:45:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 949732d3b97cbce750b44ca6167836d3 SHA-1: fa9fdd2e740b5f3ecd7a718104e7f44ea7e27888 SHA-256: f80381d7bd8a9d47853937c2c55dee31fe550d2e1973bf7be1bf9964d42f7c10
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on "free generator" or "game hack" lures. The primary redirector URL is http://netcdn.tw/app/406889139/coin-master-free-spins-link-hack-game-hack, which is associated with malicious redirector infrastructure. The document body and embedded links suggest a phishing campaign focused on in-game currency and cheats for popular games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-free-spins-link-hack-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-cheat-engine-health-hack-csgo_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/pokemon-go-free-roam_GM1094591345.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/basic-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-codes-new_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-robux-robux-robux-free_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/wings-image-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-hack-roblox-nopde-engine_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/is-tiktok-free-on-voxi_GM835599320.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-generator-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/hoe-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/websites-for-robux_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_off00003124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 22624 bytes
SHA-256: 4682542994d2b4baa471ed848760601630509cae8a8b937746c61c20f8764961
font_01_sfnt_off000063b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B0 18344 bytes
SHA-256: 0b72bc8737a749971cae617558934a0ee4712de3499baa483a9ef910788e25c1

Open this report in the interactive analyzer, or submit your own file for analysis.