Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0986be07fc86be5…

MALICIOUS

PDF

42.6 KB Created: 2021-05-12 11:30:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: b853be7a467fe5b71e83b99f2f0501d9 SHA-1: 6ff32073e3e4e240c51fd5b4089dc96b50793a96 SHA-256: a0986be07fc86be5950a8962af6bee2b5898d628188c0996007152fa00497534
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting "free spins" and "game hacks". The document body and heuristics indicate a lure for potentially unwanted or malicious content, likely leading to further compromise. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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/406889139/get-free-spins-in-coin-master-game-hack In PDF document text
    • http://professionalpilottraining.com.au/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/no-robux_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://professionalpilottraining.com.au/images/roblox-free-play-no-download_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
stream_003_off000048b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48B5 26300 bytes
SHA-256: a48e8e11e8ec039a6ea250546fe2499ea1a51c36707f87fa5623c085d4d7546b
font_01_sfnt_off00008563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8563 17884 bytes
SHA-256: 156f4ef702737132daa243a2c4fee8c0c13bec142009a1eebf0215f7cb8aef95

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