Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad9ca79cb1a4fc7…

MALICIOUS

PDF

45.5 KB Created: 2020-08-01 11:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a801e4245f367a1460aabf8987ff9fe SHA-1: b2564562d57f3688b8570313700862c29b92a6ac SHA-256: bad9ca79cb1a4fc7e36dd0e38622cea4fcd471913dd88fb533cde716fe38a895
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated but contains references to URLs, including the malicious redirector and numerous other PDF files hosted on Shopify. This suggests a link farm or redirection strategy to distribute malicious content. 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.ru/pify?keyword=steamboat+snow+report In PDF document text
    • http://files.annawatkinsfisher.com/uploads/1/3/0/7/130739951/6803078.pdfIn PDF document text
    • http://files.jpkvcollaborative.org/uploads/1/3/1/4/131406537/2522684.pdfIn PDF document text
    • http://files.ablepestinc.com/uploads/1/3/0/9/130969705/1637905.pdfIn PDF document text
    • http://files.gloriousminis.com/uploads/1/3/0/8/130874569/2142629.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/1/0435/2638/9912/files/wizireza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/97167641058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7967/9646/files/3806245153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5068/6874/files/xilupatikizufopomelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3031/5159/files/dabinetogawolimuledobiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3816/8472/files/57231576669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/junizolerizewuzuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4312/7447/files/82311368506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/todereloroditexebolesuwag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/rabaturapepizatijot.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

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DD 5008 bytes
SHA-256: c90de83018ea876c0f66b9ae804637eb695f94939cfc95cb0c4c86b6d1eff581
font_01_sfnt_off000076c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C4 10660 bytes
SHA-256: 73d23b775d8d1d01b345c877405c8acd5239e358e31944d67fea2baac10bafe6
font_02_sfnt_off00009b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B2A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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