Malicious PDF — malware analysis report

Static analysis result for SHA-256 93bc740dccb1ba73…

MALICIOUS

PDF

42.9 KB Created: 2021-05-10 22:35:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5a1dd67e8408ba26f7ee8f3a76a711df SHA-1: 93d6b9bd2b60838f540835b6716f9e742d8fc45c SHA-256: 93bc740dccb1ba7308742e4a90f6104dc018a9ead4186d742901b226c6fa4088
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, masquerading as game hacks or generators to lure users. The primary redirector URL is https://netcdn.xyz/app/431946152/how-to-hack-roblox-passwords-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow, likely leading to further malware delivery or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-to-hack-roblox-passwords-game-hack In PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/rbx-sites_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/roblox-free-online-game_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
stream_003_off00004a14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A14 25568 bytes
SHA-256: 846f11a77011d1b00513c0b34fd3a5a00666eeafab53df41a4dc1f887c95ac9d
font_01_sfnt_off00008400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8400 18672 bytes
SHA-256: bdba0893d178c93f7db8dfb8e75fc125deebdc91658f3b2576607bd83519404f

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