Malicious PDF — malware analysis report

Static analysis result for SHA-256 30079ca8c1006c73…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 15:16:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ebc6e57e590adc90b20f24077abc0aa8 SHA-1: 5b70e3c84add8e422d23390b0ddfb1e065b2907c SHA-256: 30079ca8c1006c73ee0f9aec42454a9c43469aa661fa5ca345b4cd4c5fc549a4
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 0.9980

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/roblox-forsaken-sword-3-hack-game-hack PDF link annotation
    • http://www.my-travel.com.hk/upload/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/apps-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/best-admin-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-cb-hack_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/getbucks-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/infinite-jump-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-promo-codes_GM431946152.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
font_00_sfnt_off0000313f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313F 22528 bytes
SHA-256: f6d44d5d0a16311225aa86f41eeaa97ed615f78f8cb69f13ff5c520a64d2a5b9
font_01_sfnt_off0000635f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635F 19332 bytes
SHA-256: 1e8a88c61522c96cc8b9f5fe2952dc9266c980f45d3c1ec1991ebe2f6d83dc75

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