Malicious PDF — malware analysis report

Static analysis result for SHA-256 88a7d67502e7cb3e…

MALICIOUS

PDF

36.3 KB Created: 2020-08-03 07:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8bd2946eaa7aba8a319b19261dae9956 SHA-1: 81910597aec6df9ddc6f94d77a49b50a652a1dd5 SHA-256: 88a7d67502e7cb3e33ac2b9caa7f90a7d5705fd8383ef5c9082fba436db4d14e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for potentially malicious content. The document body, though heavily obfuscated, contains text referencing "free youtube logo maker" and the malicious URL, suggesting a lure for phishing or malware. The ML classifier and heuristic firings 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.com/pify?keyword=free+youtube+logo+maker In PDF document text
    • http://files.chelseagilmoreart.com/uploads/1/3/0/7/130775472/4572719.pdfIn PDF document text
    • http://files.rapidrestoreaz.com/uploads/1/3/0/8/130873877/lakebalovujepi.pdfIn PDF document text
    • http://files.smuphideltatheta.com/uploads/1/3/2/3/132302941/d4d35a1ab.pdfIn PDF document text
    • http://files.timothyrogersphotography.com/uploads/1/3/0/8/130874143/a9f79f944d.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/1/0429/9712/1178/files/83893367821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/sojixeseruzojoralo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/8599524204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/35658504151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/30135351800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/xefisufavasemazikeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/26906636482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/mimuwiwutatokamipidawivod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5089/2454/files/kontakt_activate_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6059/files/63268962874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0433/files/mujijedabig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/zuxujedizibabivap.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5339 5088 bytes
SHA-256: 517a555121fa532e3eed4bb7b624ec9bdad6e1b469a4d39534a5d1dcfa430eb0
font_01_sfnt_off00006483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 9496 bytes
SHA-256: b61553ef3039468b96645c3fed3c1ccc6f1330a5fc31e0ad1830b0c3c92af134

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