Malicious PDF — malware analysis report

Static analysis result for SHA-256 abb8dfd58507df41…

MALICIOUS

PDF

37.3 KB Created: 2020-08-14 08:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3cd4049165289104247ddb6eeffeeb5 SHA-1: 7de1fdc4bc83ea690d0682f9ec6b3bc9b5254e80 SHA-256: abb8dfd58507df41dac7eeee29d2887b29b21c345429b9176b0e6baba6759ddb
194 Risk Score

Malware Insights

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

The PDF contains a deceptive lure, presenting itself as a 'dimensional analysis chemistry worksheet with answers' to encourage users to click embedded links. The primary link, https://ttraff.ru/pify?keyword=dimensional+analysis+chemistry+worksheet+with+answers, is identified as a malicious redirector. The document also hosts a large number of other PDF links, many pointing to shopify.com, which is indicative of a link farm used for SEO poisoning or distributing further 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=dimensional+analysis+chemistry+worksheet+with+answers In PDF document text
    • http://files.forzarealty.com/uploads/1/3/2/6/132680867/1041825.pdfIn PDF document text
    • http://files.greatlakesfrequencies.com/uploads/1/3/2/3/132303278/5653909.pdfIn PDF document text
    • http://files.hollywoodrobbie.com/uploads/1/3/1/0/131070604/1820455.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/1/0431/5738/9472/files/90547747306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/kenep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/1258810623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8120/3873/files/856792442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/gepulepokonisosapusabetop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/luxepidigudumikutoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9429/4171/files/wind_generator_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3647/8361/files/namakam_chamakam_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/70373264130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2951/0814/files/scanshell_800nr_calibration_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/82120738337.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_off00004891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4891 5084 bytes
SHA-256: 3d94e04b25a55271faf24b56f4177492a90d462054d6584fd51909ee8e62a86e
font_01_sfnt_off000059b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B3 9420 bytes
SHA-256: 1b582acaf2922797d05627c20baffcdb3b077b4e1f690ec9775657ca38ba63e4
font_02_sfnt_off000079e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E6 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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