Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7429cfb9303a64a…

MALICIOUS

PDF

32.3 KB Created: 2021-06-27 23:43:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 207b0577e5916b08e413a7b27e5a9f72 SHA-1: 07fe61be1af6a465b4ef99baf8005b8ef68327c5 SHA-256: f7429cfb9303a64a8ab93d91ad63749e23e032c93d46cfda946b1a1d26529b25
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game cheats and currency to entice users. It contains multiple embedded URLs, including a critical redirector link to 'netcdn.co', which is associated with malicious infrastructure. The document body explicitly contains a call-to-action phrase directing users to a 'ROBUX GENERATOR', further supporting the phishing and scamming intent. No scripts were extracted, but the presence of malicious redirectors and the lure suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/mm2-cheats-roblox-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/all-free-roblox-promocodes_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/thumbnails-roblox-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-people-get-robux-without-hacking_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/new-code-elemental-wars-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-t-shirt-design-maker-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-free-robux-free-robux-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacks-para-tener-robux-gratis_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-how-to-get-40-robux-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robuxs-games-no-scam_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/is-windows-10-minecraft-free_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_off000029be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29BE 21344 bytes
SHA-256: f0bb805e4a0b6f9e932e50535c75b145e200d1694a0bf6d8441ed10b6b48a6d0
font_01_sfnt_off0000588a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x588A 19336 bytes
SHA-256: d45930c88fb399fa4f72b8fcf0e32e0906bb66e3ed452b3b1b5b5d9aa23a70e7

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