Malicious PDF — malware analysis report

Static analysis result for SHA-256 9043518bbf3011cf…

MALICIOUS

PDF

45.5 KB Created: 2020-08-09 05:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 777513ae022581deecc92ce026602044 SHA-1: 0e827f95d134778e1fac7dc406995f53fe1a78e9 SHA-256: 9043518bbf3011cf2f14b5e42e31f7beb979b76df87fc9dd0ae55761e83aa329
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=aspergers+test+for+adults+pdf'. Another critical heuristic identified a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=aspergers+test+for+adults+pdf In PDF document text
    • http://files.saxtonairductcleaning.com/uploads/1/3/0/8/130814676/f847463.pdfIn PDF document text
    • http://fegok.rasrimarketing.com/uploads/1/3/1/4/131406082/lolenad.pdfIn PDF document text
    • http://files.enricahandwoven.com/uploads/1/3/2/6/132695306/dcf83a.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/1/0432/5759/4011/files/32795914697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/41004649559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/lagato_carpet_tiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1670/5432/files/peragimirojefezusub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9082/8700/files/78494641194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/98242438515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/91531039599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/90299438323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/bosupokuluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/vufutefajeruzuzisubiroju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/81732831698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/pexumafopebejo.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 2

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_off00007341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7341 5200 bytes
SHA-256: af1bd3ab6b6d8324ecefd9eae562e68877996865db5caf1da57b45d3d7925852
font_01_sfnt_off00008501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8501 10624 bytes
SHA-256: 94e2bff74d41c1614c2025189b8f5e359508e2926077971d4a5ff5461e1bd7f2

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