Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f46be6bccf81a5…

MALICIOUS

PDF

82.3 KB Created: 2020-08-01 16:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f39004c7d0b018750f572a8bc832824f SHA-1: 639b9410664d5246b887672d1c95f717f53db440 SHA-256: f0f46be6bccf81a5976dc8722758efddbfd9819caca831e857a0a7b3d6d80f47
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The presence of numerous links, including one pointing to a known malicious redirector, strongly suggests an attempt to lure users to malicious sites. The document body contains garbled text and what appears to be metadata from the wkhtmltopdf tool, indicating it was likely generated programmatically to host these links.

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=the+terminal+oversees+element+usage In PDF document text
    • http://files.reederschurch.org/uploads/1/3/0/7/130775462/vazudopalore-xabaruvami-nokizawinoz.pdfIn PDF document text
    • http://files.queenbeeie.com/uploads/1/3/1/4/131438329/rebodogimakirizuj.pdfIn PDF document text
    • http://files.teddyvilla.com/uploads/1/3/2/8/132815785/rodatovidutazi.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/1/0433/5114/6650/files/vudugironiputotidefigagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29883534071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3885/8650/files/nupanitigujexovadidoxovem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6316/4580/files/girirunujitofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/7287537546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3492/5463/files/65312327651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/54249546472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/kugimijoxetewotizutuzukek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74098669839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5374/4279/files/kopifadapotejuseluxujimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/fuzafil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/tavefivexemanojipawu.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: reederschurch.org 3 samples

Related samples 3

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_off00010042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10042 5108 bytes
SHA-256: f107c5e8c054f376996255d8a172e6fade9caa1d9eeb00e97b6b7d1ff0a8a2f6
font_01_sfnt_off0001117c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1117C 13204 bytes
SHA-256: e0309b3ca578afda57223b4525eaed67e0af63bb9a244d4eff9a6b86e0491475

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