Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b66517a08fc5675…

MALICIOUS

PDF

34.6 KB Created: 2021-07-02 03:52:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e58752b5247af5f474d12c8de944cd38 SHA-1: 99d271adf91766462e8250164dd004dbbc15611d SHA-256: 5b66517a08fc56758e521823a4824d243594f36111d21427a77ac478217f0952
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators to trick users into clicking a malicious link. The primary link, http://netcdn.co/app/431946152/roblox-hacks-hack-de-robux-game-hack, is identified as a known malicious redirector. The document body and embedded URLs reinforce this theme, suggesting a phishing or scam attempt to lead users to potentially harmful content or further malware downloads.

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/roblox-hacks-hack-de-robux-game-hack In PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/identity-fraud-roblox-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/roblox-avatar-free-wings_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/robux-sites-hacks_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/freerbxinfo-for-free-robux_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/hack-roblox-download-jailbreak_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/is-tiktok-pro-free_GM835599320.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-hack-a-megavore-in-dino-sim-roblox_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/good-roblox-hack-reddit_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/free-rs-999-999-999-on-roblox_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-hack-cbro-roblox-money_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://lojasdoescritorio.com.br/ckfinder/userfiles/files/free-items-in-roblox-using-toy-codes-works_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_off000031a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A2 22044 bytes
SHA-256: 09d874ce1e1863f74b9b339082b67aada9b799f6cadbc4b0fb554c4232efb6f6
font_01_sfnt_off0000627d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627D 18964 bytes
SHA-256: 08973b192990e7f4172cdf7387a8677c000fac25ec5b0c1ed488e23a7afdfb90

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