Malicious PDF — malware analysis report

Static analysis result for SHA-256 a985aa33ac22d66e…

MALICIOUS

PDF

36.7 KB Created: 2020-08-23 02:01:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0f3f3e5c16ed09fbfa7193fef04fc5a SHA-1: 02fa6d8582804301ca1dcf561be4a16ec7ecde4a SHA-256: a985aa33ac22d66e7dafeb6cd819fb99357401ebf48bf2f444e6f6e27d7bb9cb
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate downloads, but it redirects to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=crystal+ball+excel+2010++free, which is used to lure victims with a fake "crystal ball excel 2010 free" offer. This technique is often used to distribute malware or phishing 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=crystal+ball+excel+2010++free In PDF document text
    • http://files.trenholmlab.com/uploads/1/3/1/3/131380848/pizowibeze.pdfIn PDF document text
    • http://files.professorsilverblank.com/uploads/1/3/0/7/130776204/1a9c2.pdfIn PDF document text
    • http://files.elementsbookscoffeebeer.com/uploads/1/3/2/6/132695576/zisajojofevowepesuw.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/1/0433/9911/9013/files/beaufort_county_school_uniform_colors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9958/4664/files/nefubawimaguzadalela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1234/1412/files/capuana_giacinta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/phonetic_transcription_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/87539137141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7563/3306/files/adoracion_al_santisimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9790/6589/files/solid_waste_management_vtu_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/sepawufigojewemabepoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4684/5854/files/relasajixutizilupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/zefana.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 7

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_off00004525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4525 5056 bytes
SHA-256: 1286799975d5501931dcd6f8afd227d02d7faaf425c2acf417fd9461385d1021
font_01_sfnt_off00005679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5679 9760 bytes
SHA-256: bd58b72bd496846b55bccc7a936f6afd723b53d19bbdc0bc1a29f481526bf74e
font_02_sfnt_off000077eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EB 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.