Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a3e2e01977b0e3f…

MALICIOUS

PDF

45.7 KB Created: 2020-07-28 09:00:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4586f5f6e7990eb0cf867204051f282 SHA-1: a5793d3455c61c11039abe70a1785b2febc56169 SHA-256: 1a3e2e01977b0e3fc7a3aa125a0d67bc3f59dc0379f39d8a6176faf578722cd6
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, appears to be related to a cover letter template, suggesting a social engineering lure. The presence of a link farm further indicates an attempt to distribute malicious content or redirect users to phishing sites.

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=child+and+youth+worker+cover+letter+template In PDF document text
    • http://files.rowlandhallsummer.org/uploads/1/3/0/7/130740323/6635050.pdfIn PDF document text
    • http://files.eguastella.com/uploads/1/3/1/8/131871690/4656610.pdfIn PDF document text
    • http://files.salonnova.hk/uploads/1/3/1/8/131858287/1213069.pdfIn PDF document text
    • http://files.glorybeehoneyfarm.com/uploads/1/3/1/6/131637108/4146641.pdfIn PDF document text
    • http://files.limitedrangearrangements.com/uploads/1/3/1/4/131452799/zusuguxibupumir-nixuxokonabar-takejiwer-zuvez.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/1/0430/7730/4481/files/76743598555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6916/8021/files/rixegoxawijitixetupojesox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4549/files/gebulosirenanemifemesoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/sonabawewefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/motoxoserupuvirasamalan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/jomenunipuxunoramisifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/59385528648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/nojujamexupofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1113/5894/files/kidepejila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/26888627726.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_off00007335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7335 5356 bytes
SHA-256: 985fe9aa730cb3105b49fbe2c608106ae9bc7222959240f9820834059bb2e371
font_01_sfnt_off00008558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8558 10676 bytes
SHA-256: e16d18914a8637fc705f06ddf2b875b01ac3b872869ff60aa6d319bf81fc6578

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