Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f79b6f1655868b6…

MALICIOUS

PDF

51.9 KB Created: 2020-08-16 12:16:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 924f87e91a2245d7904d84d7dd853527 SHA-1: 7878a4b268dff0ba493347aa7508db9202989b9a SHA-256: 1f79b6f1655868b6a6ef8ef6c2d2b177166e551e5037898fc60b9a700f5970f5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, characteristic of a link farm, with a critical heuristic identifying a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=golang+execute+template+to+string', is directly linked to known malicious infrastructure. The document body, though heavily obfuscated, contains this URL and another link to a Shopify domain, suggesting a lure to external malicious content.

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.ru/pify?keyword=golang+execute+template+to+string
    • http://files.whitethornherbals.com/uploads/1/3/1/1/131164531/9457913.pdf
    • http://files.studiobeeproductions.com/uploads/1/3/1/4/131453817/7131302.pdf
    • http://files.stensolo.com/uploads/1/3/0/9/130969682/kinegodimeverof.pdf
    • http://kusujan.susanhaydenpottery.com/uploads/1/3/1/4/131438428/4197367.pdf
    • http://files.makeupbyoco.com/uploads/1/3/0/8/130813898/velonemakibufam.pdf
    • http://files.whitethornherbals.com/u
    • https://cdn.shopify.com/s/files/1/0438/8149/6744/files/xolaxi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/danimar.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/70668417869.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/25317666949.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4892/files/75694829594.pdf
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/19583783351.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/hit_em_up_style_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/faringitis_en_nios.pdf
    • https://cdn.shopify.com/s/files/1/0451/8638/4023/files/99018954891.pdf
    • https://cdn.shopify.com/s/files/1/0437/9131/9201/files/arabiyyah_bayna_yadayk_book_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/1987/9079/files/zuweged.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/54935668636.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_off00007f0f.bin
43a4cc4a53a7ab008e4b4852e6872be52f2fe15cc645ebfd16c65cf548c638ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0F 5352 bytes
font_01_sfnt_off00009138.bin
9229c602902f0438d4d5890b5043f4cfb7df859a29098111013c59a9c5eae4f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9138 15492 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.