Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0e4633bbb79937…

MALICIOUS

PDF

36.9 KB Created: 2020-08-24 04:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3652c3e46f4ad8f174bff7e24093db95 SHA-1: 4ca15e9c5d9c4c39ca32a82d63fa369d2d77f5ce SHA-256: ed0e4633bbb79937cde4f33a4777519af305d5f56b5056c6b22e21aa862ac800
152 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination. The presence of a large number of links hosted on Shopify, combined with the malicious redirector, suggests an attempt to manipulate search engine results or distribute malicious content through a seemingly benign document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=british+dressage+laminated+test+sheets+with+diagrams
    • http://kutopewa.una-atl.org/uploads/1/3/0/7/130775792/17d58361c0a9c4b.pdf
    • http://katudewig.artinamericamusic.com/uploads/1/3/0/9/130969408/siwuzoro.pdf
    • http://files.tiaralechelephotography.com/uploads/1/3/0/7/130740589/wasajinagivew.pdf
    • http://gosubidus.rooflinesystems.co.uk/uploads/1/3/2/6/132695924/fb1455f661d855f.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/rusedawofibuviweraso.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3258/files/the_basketball_diaries_movie.pdf
    • https://cdn.shopify.com/s/files/1/0434/6989/7878/files/pidiniwukizafakixup.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/dunurofagoxerugoxox.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4344/files/jomojan.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/93157889115.pdf
    • https://cdn.shopify.com/s/files/1/0435/2878/1973/files/nexesoxojenakex.pdf
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/jolukok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdf
    • https://cdn.shopify.com/s/files/1/0439/9710/2238/files/alternative_dispute_redressal_including_arbitration_act_bare_act.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/smart_tv_powered_by_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/3888/4519/files/81901253833.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_off00005195.bin
d4894475abac6dbd2d022ec8b4a5e81ac25aa2de1da3d6297da5c07b2b26bfdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5195 5380 bytes
font_01_sfnt_off000063cb.bin
02b1200538553b3228f1e4492ce3ca8b38eddd7a4dd53fa203c81236877811b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CB 10140 bytes

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