Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a82df7254c344b…

MALICIOUS

PDF

41.4 KB Created: 2020-08-06 21:41:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7758cb22a728671706734dde048f518f SHA-1: 17a7c36adb4f0d4217e6422de748b98031f6181e SHA-256: e6a82df7254c344b9f1fd747481c191a276f3c69efbdc0b4083e575200db012b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=angle+bisector+practice+pdf'. Another critical heuristic identifies this as a PDF link farm, with numerous links pointing to shopify.com and other domains, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body is heavily obfuscated and contains the malicious URL, further supporting the attack pattern.

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=angle+bisector+practice+pdf In PDF document text
    • http://files.martincashsculpture.com/uploads/1/3/0/7/130740625/05eebfab3b.pdfIn PDF document text
    • http://wusabe.multimediocrityshow.com/uploads/1/3/0/7/130740178/1660626.pdfIn PDF document text
    • http://files.chelseafarmersmarket.org/uploads/1/3/1/4/131437174/liveribijexezanoxaz.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/1/0432/9072/2469/files/hollywood_movies_2016_in_hindi_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/rozeviwanaviret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7400/1825/files/fufogamorakofat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2900/3416/files/57019755772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/66209259838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0436/1884/files/badofosawijewipeniwurodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/tasilivelalosir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/201823564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4772/1892/files/jomufuzatiwodet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/twelve_ordinary_men.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9299/1399/files/sofel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/mathematical_analysis_business_and_economic_applications.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_off00004bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBB 5452 bytes
SHA-256: e4774d32b4e6320dd64e9c2f62d16df4e1f21033d6c43f78323799db72e9a6da
font_01_sfnt_off00005e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4F 10244 bytes
SHA-256: b1d67376b6e95b84d4bdf36eaa84533395845d2c873ac8b6f9b5b5f864543a0a
font_02_sfnt_off00008175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8175 16216 bytes
SHA-256: 1699b851eb1a1ea11a62cec862b2313548363d7132d51ce2826ada84bf41a2f0