Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c95f079a7541598…

MALICIOUS

PDF

48.8 KB Created: 2020-08-19 12:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5940108805d64c539f4d897cef977377 SHA-1: 9a56cff0a67955ea4761511b5e2672b7597abae4 SHA-256: 1c95f079a7541598043374b4fd20e01682c17ad675ebe079dc9a7c49171d2faa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.ru'. This suggests a phishing or malicious redirection attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. No scripts were extracted, limiting further analysis of the payload.

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.ru/pify?keyword=pink+ward+shaco+guide+season+8 In PDF document text
    • http://files.womenartistsreaction.com/uploads/1/3/2/7/132741302/20212b75c24641.pdfIn PDF document text
    • http://files.destyinvestments.com/uploads/1/3/0/8/130813988/2592321.pdfIn PDF document text
    • http://files.drbernous.com/uploads/1/3/2/6/132681482/dulugukivekasul.pdfIn PDF document text
    • http://files.architetturamcmm.com/uploads/1/3/0/8/130874102/raxadenazegu-fenedup.pdfIn PDF document text
    • http://xawevakow.krmcloughlin.com/uploads/1/3/0/7/130776553/f691bf0.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/1/0433/2018/0894/files/43671012523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9875/8567/files/46895441707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/bevidagixagidasem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2603/8433/files/bash_color_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/watchmen_full_comic_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2296/7207/files/xujeloxixejibonesisuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakuxosisubesabemobaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8884/6753/files/84536879521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/tuwusemewufunad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/kuloguvumoposujes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/bodybuilding_anatomy_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/97339562896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0944/files/tukumapasubufulorizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.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
    • 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_off0000690a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690A 5520 bytes
SHA-256: 6b9e39c7908926216804a8c677909360756cf2b90256127aefc90ab39fcbdfaa
font_01_sfnt_off00007bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD1 10580 bytes
SHA-256: 28631a0c40422b8f754a17663e571cdb6f9cf2f746adcc6b97dd501af1b4014b
font_02_sfnt_off0000a037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA037 16148 bytes
SHA-256: 51babe3b44e703ca5a92278b053c112c5c116674d3b708c8e2cb3e4aa6bd9a04