Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecae46ba3e1eef75…

MALICIOUS

PDF

51.8 KB Created: 2020-08-09 20:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88ef294a943bd1a8701062dbe534d270 SHA-1: 846c8a18bb9d6f5a8ada814770fdcf5e9b16d3e9 SHA-256: ecae46ba3e1eef75110bf95b8607014c3ca5743249cdfeeaf52108c932c6219a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=reading+skills+and+strategies+pdf'. Additionally, it features a PDF link farm heuristic, indicating a large number of external links, many hosted on shopify.com and other domains. The document body contains obfuscated text and a URL that appears to be part of the redirection chain. The primary intent seems to be redirecting users to malicious sites, likely for phishing or to download further malware.

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.cc/pify?keyword=reading+skills+and+strategies+pdf In PDF document text
    • http://files.educatoralexander.com/uploads/1/3/2/7/132741110/872bb0b8b.pdfIn PDF document text
    • http://files.drjohnmatthai.com/uploads/1/3/1/4/131453588/nameluvevetamufudulo.pdfIn PDF document text
    • http://files.adagencyvaluations.com/uploads/1/3/0/7/130776795/5646819.pdfIn PDF document text
    • http://files.fishandswallowproductions.com/uploads/1/3/0/7/130776374/dudisawa.pdfIn PDF document text
    • http://files.loganfootball.com/uploads/1/3/1/3/131398591/xugoz.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/1/0429/9004/3285/files/64781643110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/19023855197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/pathophysiology_of_hiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/pulojikakajakopewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/6_xname_gx4x_s_5mu10gusq_ckut2ls452kczm_4_1791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9338/4599/files/pezulisawim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2876/files/biological_wastewater_treatment_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/ancient_greek_empire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/cambridge_english_proficiency_masterclass_student_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/77256252344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9430/1085/files/biomaterials_science_ratner_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8656/0936/files/ansi_b16_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/manozutisirugaripa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/pudagoximiza.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCB 5280 bytes
SHA-256: da6b128f32028d2e3e42cef505ad6976100307434688c402202154aba59a372a
font_01_sfnt_off00009edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDD 10236 bytes
SHA-256: 375cdcded85a1367fb403e441e6657f9e24d623328c8f336a6d8ab71afcec710