Malicious PDF — malware analysis report

Static analysis result for SHA-256 db92f5c7c63aa957…

MALICIOUS

PDF

35.7 KB Created: 2021-06-21 21:35:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0cacc13c2f21f658943f0c90bde47af1 SHA-1: 9712a90451763e6cecb2da591534444b7022ce87 SHA-256: db92f5c7c63aa95741d065a0cb61c301151f1a30608b5ff2e92542eb449be531
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free robux" generators. The primary redirect URL is http://netcdn.co/app/431946152/script-executor-roblox-download-free-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a lure for users to download potentially malicious executables or engage in further phishing activities.

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/script-executor-roblox-download-free-2021-game-hack In PDF document text
    • https://hekl-software.de/images/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/free-free-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-hack-be-other-players_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/hack-site-robloxcom-robus_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/wurst-18_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/island-life-paradise-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/free-robux-net_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-free-avatar-makers_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/robux-link_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/free-robux-live_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/androeed-ru-minecraft_GM479516143.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_off00002fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA2 22908 bytes
SHA-256: 5eaddc7d2f57428ffa87f5cc065eb12653cb725c55ae10d433da6ae73f6a5ec9
font_01_sfnt_off00006348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 20100 bytes
SHA-256: 8a0d063ebc8cca4bd9342a8f703fd0e99bb0d5791285693cfce8d33948a12ae9

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