Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f6897b8a32ea48…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 07:03:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 6fb7a0e4ee898bd8db829a2bfa7b4881 SHA-1: 91e4fa4cb7fdf2393879c6f28b8d4c61d9edb931 SHA-256: 46f6897b8a32ea48d48de69bb8d6cef23ff9a3a2a4d9772a9ef12dffe9513019
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to a known malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. While no scripts were extracted, the PDF structure itself facilitates the redirection, indicating a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/how-to-get-free-robux-2021-game-hack In PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/free-coin-master-cards_GM406889139.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
stream_004_off00005211.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5211 27296 bytes
SHA-256: 9545247b526ebc1d1ec8406548748915b5570e182002ed2a4679681afd3eed41
font_01_sfnt_off000090da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90DA 18684 bytes
SHA-256: 662354714a7c4aa127b8bd681013e9d5d113fbfc5a2f5afb2d34764175bb04a5

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