Malicious PDF — malware analysis report

Static analysis result for SHA-256 e53b2c8e5d8d71ce…

MALICIOUS

PDF

36.9 KB Created: 2020-08-21 22:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48d2eb06121f15e6efe70e6564cf6e05 SHA-1: e0d460f8feeaa3301d87233488035c0487524189 SHA-256: e53b2c8e5d8d71ce62e06010a9b83282e11b04b360d14a0e77009b78b1a5745f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bikie+wars+aunty+donna+piano+sheet+music, which is flagged as a redirector. The document's structure and content suggest a phishing or scam attempt, likely using SEO link farming techniques to distribute malicious content.

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=bikie+wars+aunty+donna+piano+sheet+music In PDF document text
    • http://files.christmovementinternational.org/uploads/1/3/1/3/131380583/zujirug.pdfIn PDF document text
    • http://safanuvo.idlanews.com/uploads/1/3/0/8/130873995/fozam-takunolaboxe.pdfIn PDF document text
    • http://files.earthboundgardens.com/uploads/1/3/1/4/131438840/varoj-nujawobowu.pdfIn PDF document text
    • http://files.landofosllc.net/uploads/1/3/0/8/130813988/vuzixazovusonivuxik.pdfIn PDF document text
    • http://files.recreatestrengths.com/uploads/1/3/1/4/131408970/pojugejabilomi-pulibugubolavi-xulupak-tuxapito.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/20535347082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8101/3150/files/loguxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/chromeleon_7_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/dotaserixane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/17180033859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/70774949741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8997/files/52661288203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5842/9089/files/caste_certificate_form_jharkhand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/38192342172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/cite_mla_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/sejasufojol.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B2 5472 bytes
SHA-256: 7ff489678fff39e89c776fb8a7dea05d714e6a549062165661dd702f115e849c
font_01_sfnt_off00005933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5933 9196 bytes
SHA-256: 81b7e2812a2947bb37846510d35ab4884d2375d58e25806d2c7e4a628e217259
font_02_sfnt_off000078a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A7 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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