Malicious PDF — malware analysis report

Static analysis result for SHA-256 dda288555d80670e…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 23:28:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cd937629c8f330e42724c9e1fe085190 SHA-1: 349aa34b14c55c0a976f1f3790a94189a24ef0f2 SHA-256: dda288555d80670e0333c1095978fc0040ae89404087891d334ef79b403cbc30
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/business-simulator-hack-roblox-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/best-roblox-hack-2021_GM431946152.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/cheat-engine-bypass-roblox-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-how-to-get-free-clothes-on-ipad_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/robloxs-got-talent-painting-hack_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-windows-10_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/tiktok-free-coins_GM835599320.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-cheat-engine-64-money-hack_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/comment-hacker-roblox-android_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/prison-life-roblox-hack-download-tablet_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-just-username_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-do-i-get-robux-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-deathrun-cheats_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/get-free-robux-in-1-second_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.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_off00002fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC6 22112 bytes
SHA-256: 28e2002f24c1d2bfb33c4e1c3087fd48fd70c52c7af65234d82e4f411e861899
font_01_sfnt_off000060b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B7 19280 bytes
SHA-256: 785de107a354cc44d6c6aad3bf1b92c583081a810bd18d5d322d326d351507c6

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