Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a437692aa4d4f7…

MALICIOUS

PDF

44.4 KB Created: 2020-08-19 05:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 082563ee5165683c167d0496abc7a580 SHA-1: 5732251fd5cfbf2d708563b6e3359b9842b36589 SHA-256: 69a437692aa4d4f740459343bcc022777979f8a8361f8e40e435fd76cd09361a
162 Risk Score

Malware Insights

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

This PDF document contains a lure related to a 'LinkedIn my profile picture' update, directing users to a redirector URL. The redirector is configured to lead to a link farm of 22 PDF files, many hosted on Shopify. The primary malicious redirector identified is https://ttraff.com/pify?keyword=linkedin++my+profile+picture, which is a critical finding. The ML classifier also strongly flagged this PDF as malicious.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=linkedin++my+profile+picture In PDF document text
    • http://sefuxud.electricrailwayclubsflorida.com/uploads/1/3/1/8/131856584/ed4bd6.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/1/0436/9167/1705/files/terat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/2003_cadillac_deville_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/81413664169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/jararukerabasoxeloje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/armani_underwear_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/sozadezubanibivijowepol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/wobajabokebuzibife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/53651912305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6844/1254/files/86166984893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5993/files/fungal_pneumonia_guidelines.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 1

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_off00006fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEE 5020 bytes
SHA-256: b4af940a01e4cdf9b7d16d68dd679fe48987268c5b71261e8b93cc4c9cfc265b
font_01_sfnt_off000080f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80F4 10604 bytes
SHA-256: 3d91b476de6a85f461d9f5d98b9a8fd4e789a38368ecc5392fa059b302f463ff

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