Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd60f9eda63e2fb7…

MALICIOUS

PDF

45.9 KB Created: 2021-05-13 09:00:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: da413d9dad1eb1625836dd44e27e3e9c SHA-1: 68870f767defe6f694f3e31940aa7014cb9620fb SHA-256: dd60f9eda63e2fb7a4817a90d0255b9d5c3d491ef5696f26029a145d9b7be2ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The document body, though partially garbled, contains text related to these lures and embedded URLs. The primary malicious activity observed is the redirection to a known malicious domain, likely serving as a gateway to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/406889139/haktuts-coin-master-free-spin-link-today-game-hack In PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://xn----7sbabhw4a8b0addm1c.xn--p1ai/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004886.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4886 27652 bytes
SHA-256: 8a239ad3b9c84f82d86f5e35cdf148a85250c22a7ee00dcf1a1e3f54d137436e
font_01_sfnt_off00008656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8656 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00008ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF7 18548 bytes
SHA-256: 8a183f727996cc32fbef5b88310e24e7f03bcbd52bbb5fb8fb881fa2948b6bea

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