Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb244a2a84e8e5cf…

MALICIOUS

PDF

119.4 KB Created: 2020-08-09 15:57:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c007545cf199335a4c20e4862ce6463 SHA-1: af54f2dcabbeb82ce481ae696f2be4398dbcbd89 SHA-256: eb244a2a84e8e5cf1346dbad86746061f5db9f8f265a3987b037383130001eee
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, with one specific URL identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'Handbook of augmentative and alternative communication pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a malicious redirector link and the ML classifier flagging the PDF strongly indicate malicious intent.

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=handbook+of+augmentative+and+alternative+communication+pdf In PDF document text
    • http://files.academyofintegratedtherapies.com/uploads/1/3/0/9/130969183/8921313.pdfIn PDF document text
    • http://files.bbbstraighttalksports.com/uploads/1/3/1/1/131164153/xividefasuj_riliduban_pifoje_jijurumikomorif.pdfIn PDF document text
    • http://files.joanrobertaryan.com/uploads/1/3/2/7/132740917/654000.pdfIn PDF document text
    • http://lonofipe.woodlinecreations.com/uploads/1/3/1/4/131437532/pewuxurigar_vusate.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/1/0429/3869/5846/files/rejutadulukifilemewugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/asphalt_pavement_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/puniro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1887/7085/files/1576520676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/pevalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2001/6021/files/58990120440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0533/6985/files/buda_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0897/4235/files/92785372388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/wafudijisom.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
🗂 Part of campaign: bbbstraighttalksports.com 6 samples

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001980f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1980F 5524 bytes
SHA-256: 960e490544b18051819d719468d1956cc0a8748bdbdcd717f9821402607bb918
font_01_sfnt_off0001aac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AAC3 10812 bytes
SHA-256: cd44509ce31db61fb4e2e5ba6dd309f5e0932913fa6d865a98956940af65fcec

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