Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfaa47ebfb27ff3e…

MALICIOUS

PDF

28.2 KB Created: 2021-05-10 19:33:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d0d4ee832d85f38a7522b94f53c88ed9 SHA-1: acf1cbe5182f105b3dcdeeda5926534cf2356aa5 SHA-256: bfaa47ebfb27ff3e25d72218c1634b49a215ef65f53ccf35c8090ac2e81fd275
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, designed to lure users into believing they can obtain free game currency or hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malicious content or malware download. No scripts were extracted, but the PDF structure and embedded URLs are indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

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/www-free-robux-game-hack In PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-sites-that-work_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_off00002293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2293 19428 bytes
SHA-256: ec3e393186b0edeb827723c277d22d4971e9a998992b2d2baf939c6f24b4dcf7
font_01_sfnt_off00004b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B41 18376 bytes
SHA-256: 3afa3067d1f3c9d8d4e5028784d7d2a7352a3b977a914758f486701e4d265e0a

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