Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c29d95a5141856…

MALICIOUS

PDF

36.1 KB Created: 2021-06-18 17:57:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 3296137f32fe030ad4cd8e61963a24db SHA-1: a4677e511d296bf15eb2027d2bb238210fd1c1d9 SHA-256: 72c29d95a5141856da11156bd50c57cfaecdf345eef533cd36d85d883efa6505
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, employing tactics to trick users into clicking links related to game hacks and free items. It contains numerous links to external PDFs and a primary redirector URL, indicating a phishing or scam campaign. The presence of embedded URLs and the overall structure strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-item-codes-murder-mystery-2-roblox-game-hack In PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/discord-roblox-fr-hack_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-hack-roblox-jailbreak-money-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/robux-hack-dll_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-hack-roblox-game-data_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-hacking-admin-commands-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-on-pc-without-downloading_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-robux-apk-mod_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/no-virus-roblox-hack-xbox-one_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-robux-codes-live-stream_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/como-conseguir-robux-con-hacks_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-get-a-free-skin-in-strucid-roblox_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/tradelands-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/does-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-robux-hack-me_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/is-hacking-illegal-in-roblox_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/robux-gg-free_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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
font_00_sfnt_off0000327e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327E 23104 bytes
SHA-256: 35d7757bcb9a27ba72d3513965da719123adc731ab8ef2baa1a5cf258ca5780e
font_01_sfnt_off00006645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6645 19644 bytes
SHA-256: 6a7216c5106e80fab89e5201a3ac514dc0068b25672e3b3feb23720e4cc9fc29

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