Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea5f8edf07383e5e…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 09:26:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 823cb03a409126b743ffaf85ad2c0c14 SHA-1: 6b17d3327dc30e68f9c2b814435770062be1d862 SHA-256: ea5f8edf07383e5eb18fecf57ffbc14644dfa83325702fbaf887cf7827b2addd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of free game items or hacks. The primary redirector URL is http://netcdn.co/app/431946152/how-to-make-everything-free-in-roblox-game-hack, which is associated with a 'free generator / game hack' theme. The document body also contains a call-to-action phrase, reinforcing the deceptive nature of the content.

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.co/app/431946152/how-to-make-everything-free-in-roblox-game-hack In PDF document text
    • http://www.hlad.hr/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/como-meter-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/adopt-me-roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/real-roblox_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-obux-hack-client_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/robux-gg-free_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/free-games-related-to-roblox_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/games-voody-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-free-robux-com_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_off00002ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECB 22196 bytes
SHA-256: 60692d7be1f173dc931c31d5b8c8a14a0119418e1c571eb285baaf6bf9d167d0
font_01_sfnt_off00006015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6015 19864 bytes
SHA-256: a0d843d97e71b68c01d891879679f40be0ebad4b7042c1f4fdd5f2794e586b8a

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