Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe8a3adc080eeef…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 12:05:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6e289ce2101c2f221984a6475efb7d6f SHA-1: d7813582d78dd63c0f782b271de341c4bc836bee SHA-256: 7fe8a3adc080eeef45d97da8da8fc967be2b0c7bf40a5960da6de933798e794e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and gift cards to entice users to click on links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts other malicious PDF files. The document's content and embedded URLs strongly suggest a phishing or scamming campaign aimed at tricking users into downloading further malware or visiting malicious sites.

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/431946152/free-roblox-gift-card-game-hack In PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/como-hackear-ninja-legends-roblox-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-the-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-hack-roblox-with-cheat-engine-651_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/hacked-case-clicker-roblox_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/hacking-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/bloxland-free-robux-promo-code_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_off00002fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD7 22644 bytes
SHA-256: e507209b9c95ad701b2cabb81b32a79cdd6ff26e87e794befe00a71901eb3b04
font_01_sfnt_off000062c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C7 19048 bytes
SHA-256: 7751f256669591ba1b6163ee6eba71e2718081a78833b13667734d85569e04b5

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