Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0a433970008eb32…

MALICIOUS

PDF

47.2 KB Created: 2020-08-20 20:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 660c97ca291182437e5e9f131edf62ff SHA-1: fecd91bd1a95fc71adfefc5ca06279433443c61c SHA-256: a0a433970008eb323c921d782624071e80b55194c613f46aeb8190742a3117a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document contains a mass of external links, many of which point to a link farm hosted on Shopify. One of the embedded links, 'https://ttraff.cc/pify?keyword=bundesliga+table+stats+results+form+and+standings', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to lure the user into clicking the malicious link for further compromise.

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=bundesliga+table+stats+results+form+and+standings In PDF document text
    • http://files.kiefferphotography.com/uploads/1/3/2/7/132740378/fadet.pdfIn PDF document text
    • http://files.jakimasfineart.com/uploads/1/3/0/7/130738894/7273173.pdfIn PDF document text
    • http://files.samsaraholidayhouse.com/uploads/1/3/1/4/131438059/nasakagawog-sakiduzasozip-kugaxamo.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/1/0429/3335/4659/files/74184392214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/ruroxipivuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/sawiwemolol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0096/9896/files/story_elements_worksheets_2nd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9080/2856/files/ac_dc_hells_bells_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/25959449783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/tivivofujidetilasuwikefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/fabimefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6884/0341/files/67691270178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5479/files/91678567143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8567/6188/files/circular_motion_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/jubifigadozijaluni.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_off0000687c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687C 5416 bytes
SHA-256: 8da1ff79d28e800c4b0d32a16377df99676a6ae63c0f983a60dce578b4fb1fbb
font_01_sfnt_off00007ac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC6 16764 bytes
SHA-256: dd0c317c7e79499c3592bddc2bbb5e0f5afec0fd49f60caaec50a5a9d04d038a

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