Malicious PDF — malware analysis report

Static analysis result for SHA-256 694fd32421e03f33…

MALICIOUS

PDF

33.4 KB Created: 2020-08-06 21:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ecc3f9ebcff28208c7e8fa436ff0f436 SHA-1: 60b6ee5b3a011e6ea79d6d6c2b8d31e1955ddb45 SHA-256: 694fd32421e03f33244272afb411367dd2b1f418ced5c937a6f187d2b065a396
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, contains text suggesting it is a worksheet, which is likely a lure. The presence of embedded URLs and the ML classifier's high confidence indicate malicious intent, likely for phishing or to download further payloads.

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=greatest+common+monomial+factor+worksheet+pdf In PDF document text
    • http://files.beautifulskincarebymayra.com/uploads/1/3/0/8/130874613/3117283.pdfIn PDF document text
    • http://files.ricksmobilerv.com/uploads/1/3/2/3/132303238/02fd0933.pdfIn PDF document text
    • http://files.mrpultz.com/uploads/1/3/1/1/131163832/9669725.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/1/0433/5806/0703/files/83799283836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/random_lines_of_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/27052541278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/sujexumiburupoxolafovonin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5407/1957/files/54465566586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6520/3093/files/hd_avi_movies_hollywood_in_hindi_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/25495138248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0749/0717/files/dynamics_hibbeler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/74936522436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2226/9090/files/70491873626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/xipow.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 5

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_off0000459c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x459C 5584 bytes
SHA-256: c1351f1a386d5426b9bb37574a149ee73dce86dfd9bf05b24ca0cafd010a12a2
font_01_sfnt_off00005883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5883 9400 bytes
SHA-256: f82a1c2133168bfcee7695af032558195421e59f5c83e7459df62d45433e8e8d

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