Malicious PDF — malware analysis report

Static analysis result for SHA-256 08af8c6859028b80…

MALICIOUS

PDF

35.9 KB Created: 2020-08-30 17:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f276dd1b19b2fb80db830ad9fca00d46 SHA-1: e93d651e26c43255ec38c9e6d1764972d8e4d91c SHA-256: 08af8c6859028b804e294d5f174619b978297df665992e44464de69def30c2d1
154 Risk Score

Malware Insights

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

This PDF document contains a link farm pointing to numerous external PDFs, with one primary link redirecting to malicious infrastructure. The embedded URL `https://ttraff.ru/wix?keyword=scorpion+temporada+2+latino` is identified as a malicious redirector. The document's structure and the presence of multiple links suggest an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=scorpion+temporada+2+latino
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/59065759129.pdf
    • https://cdn.shopify.com/s/files/1/0432/2476/0484/files/topographical_anatomy_and_operative_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0431/6948/0866/files/23560823421.pdf
    • https://cdn.shopify.com/s/files/1/0434/7206/0573/files/41682152456.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/1484751826.pdf
    • https://static.usrfiles.com/ugd/f967ac_818c6e10a1f4424282ad98e52ef317d2.pdf
    • https://static.usrfiles.com/ugd/de3d83_e2577106dbad4318abb0499522fd3781.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/60398726797.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/22909925337.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/platform_full_movie_video_film.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/14987891765.pdf
    • https://cdn.shopify.com/s/files/1/0431/0247/0306/files/21967174237.pdf
    • https://static.usrfiles.com/ugd/b8c837_c339c8983be644e3b4c99bf180b96e90.pdf
    • https://static.usrfiles.com/ugd/b8c837_35bd33f1f3d04d798c75904b44f2219d.pdf
    • https://static.usrfiles.com/ugd/696b8a_6ad0ce56324d44f4b38919bb828e9d62.pdf
    • https://static.usrfiles.com/ugd/b8c837_09a1505ba1864445ae4780b5e3ee6aca.pdf
    • https://static.usrfiles.com/ugd/87d215_605fda896b1a494fa0cce6d99bab8406.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_off00004f17.bin
93ea075e920fe9039004287a8179d64c4a63a8da9a286e7578d4cf81f48f14cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F17 5276 bytes
font_01_sfnt_off000060dd.bin
1cc30d4439ac25b072746620c3a10428928d913c8dda2637c0eaaa8768141ffc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60DD 9984 bytes

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