Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc74a087d904e6e…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 04:52:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6aed0dcda49237dd659003dcf0088aad SHA-1: 5ecb69fdd72b57a9d557ec4c9203162cea8debf0 SHA-256: 1fc74a087d904e6e1a2c953d4b3b027757ead091433fcedc50d705856746bc18
102 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 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/i-want-to-break-free-roblox-music-video-game-hack PDF link annotation
    • http://103.40.122.33/akasia/repository/coin-master-hack-xyz-download-free_GM406889139.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/como-hackear-robux-en-roblox-con-cheat-engine-66_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/backpacking-hack-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-grab-the-child-hacks_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/advertise-for-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-cruise-ship-tyccon-albatros-free-script_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-gift-card-codes-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hole-in-the-wall-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-oof-sound-free-download_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-download-a-roblox-jail-break-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/using-cheat-engine-with-roblox_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_off00002dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD2 22368 bytes
SHA-256: 585ce0a3767fde06848d8a3df74d1931017e40e6608064a6e4b8fa80d17b9079
font_01_sfnt_off00005f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9A 19888 bytes
SHA-256: db0b5a315ac86a753235fd9a1dd720d6444113d82cc80814dc8402755b1f1054

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