Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee953ef28935fc77…

MALICIOUS

PDF

41.9 KB Created: 2021-05-19 15:39:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fb95746a63922455c43af576ff25c95d SHA-1: 3f755d0df086d9b15fbf95943de8bd022e6249a2 SHA-256: ee953ef28935fc77231dfe32fc91bf4f4597827c7cc260d7b1475e811f71e1e7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to "Pokemon Go Free Incense" and embeds a large number of external links, many of which point to other PDF files hosted on similar domains. This behavior is indicative of a link farm or a method to distribute further malicious content. The presence of a "Visual download / call-to-action button lure" heuristic further supports the deceptive nature of the document. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/1094591345/pokemon-go-free-incense-game-hack PDF link annotation
    • http://schottlandfieber.de/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/get-free-spins-coin-master-link_GM406889139.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_off00004a8c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8C 24832 bytes
SHA-256: 6a349dd913b59e5fe96f32fec535890782a7a10bd6bf07570441ce8fd853ffea
font_01_sfnt_off0000833b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833B 17844 bytes
SHA-256: 387e8e82f31cc2d1f2ebaa9520ad54b94e5cd6a2a3999bbd60f14db6b8431fab

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