Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b258f8a098815c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 06:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f04aa5931ff2188f6ca91098c746bd8 SHA-1: cfeea7a0c40b3cbaee655df23e217db7a6284b0c SHA-256: f6b258f8a098815c1fb8e7af2bd9e48a039f0f91ed7e2fcee04cd56ddac7313b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to direct users to harmful content. The document body, though malformed, suggests a lure related to 'office depot shipping labels template'. The ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious activity.

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=office+depot+shipping+labels+template In PDF document text
    • http://files.lemonteilrevolution.com/uploads/1/3/1/0/131069812/kujuxorox_jisomonibetalu_dorokajuja.pdfIn PDF document text
    • http://files.setonmiraclemiles.com/uploads/1/3/1/6/131636990/af6c589f5ac6d5e.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/1/0432/9511/3374/files/xudelibanesewitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/kuvuritunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/57057077941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3305/1814/files/cartoon_photo_editor_app_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/40532871312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/jinipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0577/0904/files/23971657847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2962/6017/files/77314544568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6587/6379/files/aptitude_shortcut_methods_and_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/59219746944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0679/4656/files/73438858244.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 8

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_off000060d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 5640 bytes
SHA-256: f18f57a095c7b9a741728eb0971e9c4ea4ac702ff1d9aa9cd8b0b99051876487
font_01_sfnt_off000073d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D3 9860 bytes
SHA-256: 1b51316d207192b719e7ca6254b7a992765d97d2738e4e1884048a6b59c2936c

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