Malicious PDF — malware analysis report

Static analysis result for SHA-256 937ada0fc3c7b2cf…

MALICIOUS

PDF

41.1 KB Created: 2020-07-28 17:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8c51c96f16c424212d16b4be84d6f1d SHA-1: 58a60e5874dd1a2532a3a65a426f404d293503f7 SHA-256: 937ada0fc3c7b2cf8c5b5ca3d957ceef789e082c4185175014ddcd4aa9586a48
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a significant number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=design+essentials+honey+curl+forming+custard', is identified as a malicious redirector. The presence of a 'Visible LOLBin command execution instruction' heuristic suggests that the PDF may also contain embedded commands or scripts designed to execute malicious code, potentially leveraging tools like PowerShell.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=design+essentials+honey+curl+forming+custard In PDF document text
    • http://files.moxiechattanooga.com/uploads/1/3/0/7/130740138/1935178.pdfIn PDF document text
    • http://files.raquelmeraki.com/uploads/1/3/2/7/132740860/3354846.pdfIn PDF document text
    • http://files.kypdx.org/uploads/1/3/2/7/132710690/4346933.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/1/0432/7309/3288/files/rojebizarorizajefipugivuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5927/2090/files/fanedif.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/tilajemirazeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/fezuwugovekofokenev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/sadubojunupekaxitamepan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/sokomirulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5808/6556/files/3591892029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/foxunakisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3228/9178/files/64081157271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5572/6238/files/judomegebobekizugumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7088/9896/files/fivamej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.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
    • https://cdn.shopify.com/s/files/1/0432/In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6142 5420 bytes
SHA-256: 463eb0870f01e8bf59852c2b653091fdf101d5fbd4b70a1f1286b95113199f0a
font_01_sfnt_off00007384.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7384 10284 bytes
SHA-256: a239fcdfce0e6f7cbed2e5495aa1d379470198ffdf1d82ac930d9fcbab8e93e9