Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a184569ff57ce9f…

MALICIOUS

PDF

53.8 KB Created: 2020-08-23 01:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48a12b907eea627a5866604530b549f9 SHA-1: 26cbc7a07e87a03c46b2c67b9281ffd143bb4be8 SHA-256: 8a184569ff57ce9f14fb90514bae01da085f7d0258927eeb6c72df86d5ee9c40
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, which points to `https://ttraff.cc/pify?keyword=sketch+website+mockup+template`. This link is presented within the document body, suggesting a social engineering lure to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=sketch+website+mockup+template
    • http://sopos.ysgolyfoel.org/uploads/1/3/1/6/131606349/kerojivi_mozajal_xewekarur_lajosijaguzi.pdf
    • http://files.boston2ireland.com/uploads/1/3/2/8/132814261/3ad3e191ea.pdf
    • http://mixuxor.blquilter.com/uploads/1/3/1/4/131437423/fojixejezozosesivara.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/68402804890.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/pdf_bestand_kleiner_maken_adobe.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/4361417853.pdf
    • https://cdn.shopify.com/s/files/1/0433/8080/1701/files/nanuwuvivitet.pdf
    • https://cdn.shopify.com/s/files/1/0439/0541/7371/files/celestial_navigation_calculation.pdf
    • https://cdn.shopify.com/s/files/1/0455/7858/4229/files/takadaposorujuvajodazij.pdf
    • https://cdn.shopify.com/s/files/1/0432/7378/1411/files/71706709319.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapiguwidekedod.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_off00008e95.bin
d521708c93f2bfdf19c70cd14422ba171f4b955e14d20ba3d49296d44d9ea19c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E95 5476 bytes
font_01_sfnt_off0000a129.bin
f9d37ab9fd21c111fd63a10a95fd923017b722fb74fad35bcf94eafe74c8ee09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA129 13060 bytes

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