Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8ed38dc3e75dff…

MALICIOUS

PDF

45.9 KB Created: 2020-07-28 05:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7961e1e4f8518c942ab33c874293d2d6 SHA-1: 521b907ddb1e0f17108b8412be587b28c9dd5016 SHA-256: 1d8ed38dc3e75dff702c8a0a4e8790397f1b66d8920bde971d6ffc2f1f11cecf
194 Risk Score

Malware Insights

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

The PDF file contains a lure for a "direct deposit form" and is heavily populated with external PDF links, many of which point to a redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to ttraff.cc, indicating a malicious redirector infrastructure. The PDF_SEO_LINK_FARM heuristic further supports the idea that this document is part of a link farm designed to attract traffic, likely for malicious purposes.

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.cc/pify?keyword=ahola+direct+deposit+form In PDF document text
    • http://files.vestedenergy.com/uploads/1/3/1/3/131398334/33257.pdfIn PDF document text
    • http://files.curbarridgeascofartistsandpainters.com/uploads/1/3/0/9/130969514/gigoreje.pdfIn PDF document text
    • http://files.friendshipforcewmich.org/uploads/1/3/2/7/132740285/367bd364.pdfIn PDF document text
    • http://files.radscalems.com/uploads/1/3/1/4/131454620/f3f04baf.pdfIn PDF document text
    • http://files.breathelaughlove.com/uploads/1/3/0/7/130738652/fd6a64f4.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/1/0436/1709/1744/files/64315848045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzibuwusupamodugibeboz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/24236269642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/banarutevoserumonelajoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1702/files/pimajagajizujir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9531/7911/files/56979701887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/36024638891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/vezedikizatojidatem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/2053559276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/lopagut.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 6

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_off00007614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7614 5064 bytes
SHA-256: 00037741c833067adae5a14023f755964674a93afba969b558f366cb48103ec4
font_01_sfnt_off0000874a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x874A 10368 bytes
SHA-256: b26afd0e529751790d38ffd229ea97546fb87da4ebf2d930610976e1002e4bf8

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