Malicious PDF — malware analysis report

Static analysis result for SHA-256 046a034c2e34334b…

MALICIOUS

PDF

42.0 KB Created: 2021-06-14 01:35:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b809508ea832fe3f6a63d5bf04bb3153 SHA-1: c855cb32fdf614d4a492bb241a15d802a7176f7a SHA-256: 046a034c2e34334ba68f1df8d12f4cbf17e8dc995184537dd3ffdecabaf656d4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-brown-pant-roblox-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hacks-2021-on-a-hp-computer_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-tool-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-adventure-story-wraith-card-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/shinobi-life-roblox-hack-onyx-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-admin-dll-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/best-hacked-client_GM479516143.pdfIn 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
stream_003_off00004894.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4894 24264 bytes
SHA-256: f632bc1241d60daae191c86594c723e13bed2621a903a1ee4901034976517840
font_01_sfnt_off0000809f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809F 18596 bytes
SHA-256: ee0946715cf7c01c3032de3874d0a56970bb10390ee40dfcd68b60e797bc9ac6

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