Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e73f6673a05c29…

MALICIOUS

PDF

37.5 KB Created: 2020-09-19 11:56:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8665ad8f45a31dc2d257810f77709acb SHA-1: 6d31e629ac4156934c9e6786fe595bfb2b987e27 SHA-256: 26e73f6673a05c292dabc8c3d1ecaf354f5e7880d609918958d89337a52c631f
184 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, identified as a link farm. One prominent URL, 'https://ttraff.me/wix?keyword=matthews+middle+school+staff', is flagged as a malicious redirector. The presence of numerous links suggests an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery. 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=matthews+middle+school+staff In PDF document text
    • http://bufosapu.openheartstudio.org/uploads/1/3/0/7/130775518/tumukavi.pdfIn PDF document text
    • http://files.pointbiolabs.com/uploads/1/3/2/6/132682790/0bf4b2a46.pdfIn PDF document text
    • http://files.chellesparklycorner.com/uploads/1/3/0/7/130739991/3c27d3.pdfIn PDF document text
    • http://lerowomax.neuquacheerleading.com/uploads/1/3/1/4/131437308/28085.pdfIn PDF document text
    • http://files.awesomekidmin.com/uploads/1/3/0/7/130776164/fca1831d19.pdfIn PDF document text
    • http://xojawoxu.andreakantrowitz.com/uploads/1/3/1/6/131606492/126644.pdfIn PDF document text
    • http://mijolubus.mukipictures.com/uploads/1/3/0/9/130969723/7192748.pdfIn PDF document text
    • http://files.indyofficelistings.com/uploads/1/3/1/3/131384777/2422723.pdfIn PDF document text
    • http://kevev.fccadams.org/uploads/1/3/2/6/132695832/pafewefupipabel_xiluzid_ziworubiwewu_zuxamunotab.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/1/0455/4008/1829/files/85481170900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0511/5544/files/75626017682.pdfIn PDF document text
    • https://853d6e14-fc7e-4d62-8a13-e62ff5c36c3f.filesusr.com/ugd/dcbeda_b95e4ba6f2ec422e99cb1628902e6990.pdf?index=trueIn PDF document text
    • https://e749e773-9ac8-41c5-abf0-0d139674d573.filesusr.com/ugd/f9fac6_53cc7b4ceefe4d01a2fdee22b95b5925.pdf?index=trueIn PDF document text
    • https://04cc92c7-3c84-4193-bd37-b4b208eef5aa.filesusr.com/ugd/3e87bf_2962507ec42e4f43b5ef9aeb3ce597a3.pdf?index=trueIn PDF document text
    • https://94de86ac-c339-4cf9-a5bb-e0ef6a67aa6b.filesusr.com/ugd/bdc04d_0899ffce92634df192469189e28b934f.pdf?index=trueIn 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
🗂 Part of campaign: angelasteinmann.com 5 samples

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Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5519 5260 bytes
SHA-256: 64982043a93f8a10872baa7f17c27129913fb81c1a76aa2866d8a3ce852469aa
font_01_sfnt_off000066fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB 10016 bytes
SHA-256: 7249e88eea3070aef101b47704b3394c56c3b3f14d8bbde3fbaa2e7f086749d5

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