Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a7271c773f25a4…

MALICIOUS

PDF

45.4 KB Created: 2020-08-05 11:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71bd669ab6be1d3fee58c0b81a9340ff SHA-1: 178a7578ef015f009b8c8ecaeb6adc5fbdc4d022 SHA-256: 49a7271c773f25a45410dc1fc209470c391a4f0aa18be20e3614340d1da8d4c4
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the embedded links, https://ttraff.cc/pify?keyword=to+chicago+and+back+aleko+konstantinov+pdf, is identified as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=to+chicago+and+back+aleko+konstantinov+pdf In PDF document text
    • http://files.anjoybaskets.ca/uploads/1/3/2/6/132682655/siruxe.pdfIn PDF document text
    • http://files.echocanada.org/uploads/1/3/1/4/131453724/7181768.pdfIn PDF document text
    • http://files.e3educate.org/uploads/1/3/1/1/131163736/kosufililup.pdfIn PDF document text
    • http://files.skylineinspectionsinc.com/uploads/1/3/1/3/131383541/bowefisigar.pdfIn PDF document text
    • http://files.darlingcharacterparties.com/uploads/1/3/2/6/132695719/lupajidegolug.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/1/0439/4595/1400/files/properties_of_benzoic_acid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6852/2657/files/american_english_file_level_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/63894324364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0794/2549/files/starbucks_supply_chain_case_study.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/zexeluribi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/addison_wesley_math_makes_sense_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8272/7067/files/21827907370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/iluminasi_cahaya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/nazudosukuvuzipojolef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/lab_safety_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/mazimexusebatede.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EB 5324 bytes
SHA-256: 7485954beaa39ca9b986652e716e2903465e7e86c6e6d6569241df0e8606fad5
font_01_sfnt_off000077fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77FB 10088 bytes
SHA-256: f019892a5e9892824219ac96de6ee547993849adb9470c32f5fd83a7e0ed75fa
font_02_sfnt_off00009a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A61 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378