Malicious PDF — malware analysis report

Static analysis result for SHA-256 addf099b16ecad86…

MALICIOUS

PDF

48.7 KB Created: 2020-07-28 03:00:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29bb825388f10f78ce4103c0773b7021 SHA-1: 9e2d9ef0bf0c7848752579b8d7b503637183167c SHA-256: addf099b16ecad867bbdf63538dc6b545f25ae2d63a770ab0df4ba2b5de3783f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to `https://ttraff.cc/pify?keyword=best+android+tablet+walmart`. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains hosting other PDFs. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body is heavily obfuscated, but the primary attack vector appears to be social engineering via a deceptive link.

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=best+android+tablet+walmart In PDF document text
    • http://files.remembrancestars.com/uploads/1/3/0/7/130740462/95d49f5dd7.pdfIn PDF document text
    • http://files.keyscientific.net/uploads/1/3/1/3/131384359/80e8de856ba.pdfIn PDF document text
    • http://files.davidlouismarino.com/uploads/1/3/0/7/130776888/1aadff0167afc64.pdfIn PDF document text
    • http://files.monkeysbnb.com/uploads/1/3/1/3/131398424/2272506.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/1/0429/7618/2426/files/mibepokilidef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/43524604543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/giwisiviwapusiweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/ludupazabetap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4943/4792/files/88051497189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/wudino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4058/7431/files/rasudaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3740/8936/files/8325886924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6998/0320/files/wimiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/lanobekusux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/42672051100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6177/2442/files/20612131888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.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_off00008158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8158 5040 bytes
SHA-256: ca3e3ca0e108d0f093193ecbf2e5a70163c4d00412210133f0132872660bccfc
font_01_sfnt_off00009264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9264 10180 bytes
SHA-256: 59b108ead7cf4d10bdbe601a83bd0dc7d8b994b1d33c38f6b72a377ae1ffa1fe

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