Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aaedc4d27b84524…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 17:44:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a70ef7331c6ecf2de67a60160133945c SHA-1: 4bb3d7893e42fde0c4ee26d2205929a2bcae9a11 SHA-256: 0aaedc4d27b84524a4bf9dd25a25bbfc0ef5adfaf1451b3545919ea183454fc3
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links designed to lure users into clicking on what appear to be game-related hacks or generators. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. The document body and heuristics indicate a scam or phishing attempt leveraging popular game titles to entice clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/431946152/how-to-get-free-robux-without-email-game-hack In PDF document text
    • http://stitqi.ac.id/website//repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-items_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/cheat-codes-for-roblox-prison-life-20_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux_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_off00002fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEF 22828 bytes
SHA-256: a5a3998b4d23bffe27be369a0e5e756d3b08553c2ebffd8f854a10c1f753f319
font_01_sfnt_off00006311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6311 19800 bytes
SHA-256: 7cc36b060554649fa6389e53221d06b2ae285b8e0623c743bba4dd7e0ab481d9

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