Malicious PDF — malware analysis report

Static analysis result for SHA-256 da586d616d285e9e…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 17:11:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 59f35352eeda5ba20fd958ee009e16dc SHA-1: 8cf1daa05dae4497b4b32a038ec01964256c13d1 SHA-256: da586d616d285e9ed9aa2d45a592e53619143755f979ef023e4b4955a5fe4b85
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 generators. The document body and embedded URLs strongly suggest a lure for users seeking cheats or in-game currency. The primary attack vector appears to be social engineering via a deceptive document, leading to a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-woodland-money-hack-game-hack In PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-really-works-not-youtube_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-become-pubg-uc-seller_GM1330123889.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-offsale-items-on-roblox-for-free_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_off00003025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3025 22076 bytes
SHA-256: f08fb81392c49a45bbe00f0dd870adc3c6ac37bfddb83d0de2dd854303b893e6
font_01_sfnt_off00006114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6114 19404 bytes
SHA-256: 4d1cfcf35372ead72874299fd06627622226b58607c37a0166732305ac4e4d2f

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