Malicious PDF — malware analysis report

Static analysis result for SHA-256 154591ea6ca0e17f…

MALICIOUS

PDF

35.3 KB Created: 2020-08-31 01:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 258cbbc06812e9e79556c01c338e57ca SHA-1: 96b6bb23557af26aef6bb9abe88d7750de95b0bf SHA-256: 154591ea6ca0e17f69428a836cc9f2c28c65e8c301c01ae12ab969688e222415
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector infrastructure, identified as 'ttraff.ru'. This suggests the document is designed to lure users to malicious sites, likely for further exploitation or malware distribution. The presence of numerous other links, many pointing to Shopify-hosted PDFs, indicates a potential link farm or SEO manipulation tactic to obscure the malicious destination. No scripts were extracted, but the embedded URL itself is the primary indicator of malicious intent.

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.ru/wix?keyword=from+the+neighborhood+2+the+stage+download+zip
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/slope_intercept_form_solve_for_y.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/nakinomusutavabigefa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/fundamentals_of_physical_acoustics_blackstock_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/1641/1547/files/what_is_bangsamoro_organic_law.pdf
    • https://static.usrfiles.com/ugd/3e9e83_0f473291594f4e0bac7b072e02ea032a.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/12882457098.pdf
    • https://cdn.shopify.com/s/files/1/0432/2711/9784/files/gram_stain_lab_report_results.pdf
    • https://cdn.shopify.com/s/files/1/0430/4768/2201/files/sara_ataxia_outcome_measure.pdf
    • https://cdn.shopify.com/s/files/1/0433/8994/3975/files/baraka_da_prince_sometimes_song.pdf
    • https://cdn.shopify.com/s/files/1/0429/3787/6639/files/50002890350.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/wizard101_sylvia_spitfire.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/tisiseruz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4673/9878/files/niwejodulukevalodopa.pdf
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/tegifu.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047fa.bin
267c238068e75f34349f399383d8dca21d6907c9e306f7bcee95721942a044a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47FA 5740 bytes
font_01_sfnt_off00005b7a.bin
f4d3aa9bbf882b306d91e8abed70ba00563481b1dce7d985cff098000a218200		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7A 10792 bytes

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