Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e2bef59f496a12…

MALICIOUS

PDF

37.4 KB Created: 2020-08-14 19:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f48ac3ce23881132607e60ce2b7b3f1 SHA-1: deda27f8955ca59053068ffeba67802205e12f59 SHA-256: d7e2bef59f496a12fe5d6884f62761e22504cae7c8d65585da1b86cc08e8f3ec
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a download button, aiming to lure users to a malicious site. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, some of which point to benign Shopify domains while others are unknown. The presence of a link farm and a redirector suggests a phishing or malware distribution attempt.

Heuristics 4

  • 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.
  • 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
  • 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://ttraff.cc/pify?keyword=free+animated+template+for+microsoft+powerpoint+2010
    • http://zejub.feedmeupdelivery.com/uploads/1/3/1/6/131637136/xeraf.pdf
    • http://files.cederosier.com/uploads/1/3/1/3/131383319/sibowufe.pdf
    • http://mokakon.tri-waymold.com/uploads/1/3/2/6/132695569/wimewegepibitowi.pdf
    • https://cdn.shopify.com/s/files/1/0446/0806/1604/files/english_textbook_year_5_kssr_sjk.pdf
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/17806567610.pdf
    • https://cdn.shopify.com/s/files/1/0434/4443/7144/files/reading_plus_answers_level_k.pdf
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/vugejitutofefebunubotazod.pdf
    • https://cdn.shopify.com/s/files/1/0435/6826/7423/files/kalenusefugurarob.pdf
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/cancionero_cristiano_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/careers360_magazine_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4958/0704/files/garebomawowujobedamajega.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000565d.bin
d27d9ef121b8759c1bcf8116bbb169b9a4095a694b279be22b0bd92ef30a8099		 pdf-font-stream PDF embedded font (sfnt) at offset 0x565D 5672 bytes
font_01_sfnt_off000069a8.bin
263c73d15b16c70fbdab9bc37c7fbe568415a693b7f0cecc2c5c57d9ebff8c1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A8 9120 bytes

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