Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d1dbc08dbf91f42…

MALICIOUS

PDF

43.6 KB Created: 2020-08-01 02:48:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b1a4a266ef9ffbe0bdf0d9516967a07 SHA-1: de402d5f0607c0652d7b0c5f28f9cf484745595b SHA-256: 7d1dbc08dbf91f42e2f9b4bd6f0f3d07fac797f1c123b1f9f37ac8a29f45ff43
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links designed to redirect users to a link farm, which in turn points to various PDF files hosted on Shopify and other domains. The primary redirector URL, 'https://ttraff.cc/pify?keyword=suicid%25C3%25A9+squad+torrent', suggests a lure related to 'Suicide Squad torrents' or similar popular content, aiming to trick users into downloading further malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous external links points to a phishing or content-luring attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=suicid%25C3%25A9+squad+torrent In PDF document text
    • http://files.kristinrmt.ca/uploads/1/3/0/9/130969818/02ce43c79a87a.pdfIn PDF document text
    • http://files.ckemployeeportal.com/uploads/1/3/1/3/131383943/4276487.pdfIn PDF document text
    • http://files.mygentlebeginnings.com/uploads/1/3/2/7/132740424/9403006.pdfIn PDF document text
    • http://files.ancestral-pathways.com/uploads/1/3/1/4/131453188/savaxeruzuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/nazitelav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/92502894497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/3659127674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/liwitudobuxobamarodotesux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7656/6684/files/dadoxawagerodogopejajonav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4481/files/76743598555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2534/0328/files/tabupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5592/3878/files/giant_soul_sorcerer_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/kukojav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4610/0374/files/65339203437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9235/2932/files/fizolawutatatilopizuwuba.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • https://bit.ly/2t8YwsdSERVERIn PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A8 5272 bytes
SHA-256: fa16c19463c2d898290260d2149416925940d4228983d1e5424587ad2d00f73a
font_01_sfnt_off00006756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6756 10288 bytes
SHA-256: 88b91f6bd91556c649d3e22356a7578f33060d8f62ee6e04b99e52719eb3dfe3
font_02_sfnt_off00008aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA9 16112 bytes
SHA-256: 89498c5ae7adc0dcab6b62eb765d682c9ffdf1ab0127780e1186b0b00e602b38