Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ae7dcb2bd66634…

MALICIOUS

PDF

64.7 KB Created: 2020-08-03 05:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b9e05c5e9a1eac9f5225d8a485608b0 SHA-1: 28f6cc6edce9c65d2a48aaa1785e79eebc8c22b5 SHA-256: a7ae7dcb2bd666343d36156321d3c1e7b23088665b549728e9a05184999fb292
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'applied drilling engineering'. No scripts were extracted, but the primary attack vector is the redirection to a malicious site.

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=applied+drilling+engineering+bourgoyne+pdf In PDF document text
    • http://files.elizabethweybright.com/uploads/1/3/1/0/131070911/5110392.pdfIn PDF document text
    • http://files.proseandcommas.org/uploads/1/3/1/4/131410545/6346374.pdfIn PDF document text
    • http://files.jbjimerson.com/uploads/1/3/0/7/130738673/bumafajep_dijoto_tageb_niziz.pdfIn PDF document text
    • http://files.snowypeaksoap.com/uploads/1/3/2/3/132302973/a7512c13cdce8e.pdfIn PDF document text
    • http://files.improvemydealership.com/uploads/1/3/0/8/130874480/72d7ad732.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/1/0432/5376/0160/files/13964626839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/sewegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/62749831569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/xinonemegafader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/limepusumafijuzirerat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/94555686445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/gezesifogoxuxoremezim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/92835592029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2848/0154/files/78023129195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/sugojexivabatotufawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7034/9731/files/33912449456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6141/files/tukuzixamuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7728/files/suwet.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a58f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA58F 5052 bytes
SHA-256: 7a7e90916e8c8b6bc4fa2117994d1893891a8c3d8e35576d4084c0b4a2cdff17
font_01_sfnt_off0000b6d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D6 10912 bytes
SHA-256: 12b2fb1e2199136eca83f3012e09dc9a52878207913ee88574dd57c5ea80ed3c
font_02_sfnt_off0000dbff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFF 17120 bytes
SHA-256: ae8c2df216e965e76ccbd97db6c9117008a047bbe6aa20e4abfe42d95c9e0ab7

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