Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a1812abc0cf12c…

MALICIOUS

PDF

42.1 KB Created: 2021-05-13 19:39:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e2959631e7b6049b471a961aeaa53c70 SHA-1: 56e05f4f207edde969e3b46380a6fba134ec8a08 SHA-256: 29a1812abc0cf12c326053b7b43acabb65dc76992039c42e99630392e0852c3b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors, masquerading as generators for game items like Minecraft alts and Robux. The primary lure is to trick users into clicking these links, which ultimately lead to potentially harmful content or further malicious downloads. The ML classifier strongly indicates malicious intent, and the presence of embedded URLs and a download button lure reinforces this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • 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 https://netcdn.xyz/app/479516143/free-minecraft-alts-game-hack In PDF document text
    • http://technologicalsc.com/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/robux-redeem_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-free-robux-easy-2021_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_off00004aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA2 25492 bytes
SHA-256: 94d8a241ea0fa92422735265addb43fb0db2a5d45dac4656c01905697feca081
font_01_sfnt_off00008445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8445 17644 bytes
SHA-256: 4350bb70586d7d356c834f80239bf16b03274066df9e9143be1036ee17eff588

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