Malicious PDF — malware analysis report

Static analysis result for SHA-256 38d3059bebe51ecb…

MALICIOUS

PDF

45.3 KB Created: 2020-07-25 10:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0fd10f99b689f466fb549be58cf6cf2 SHA-1: 1ccb70c025965b7aaa487bac4ef31246aa12c2eb SHA-256: 38d3059bebe51ecb97ddeab05f4f4ead8d13f9dfe2139dcf4086729d50b6e7da
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is used in a lure related to a 'Windows 10 update 1709 manually' which is also present in the document body. The document also contains a PDF link farm, with many links hosted on Shopify, though most of these appear benign. The primary malicious link redirects to a known malicious domain, likely to deliver a second-stage payload.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=windows+10+update+1709+manually In PDF document text
    • http://files.simonesoernsen.com/uploads/1/3/1/3/131383514/c9d5b8fa8.pdfIn PDF document text
    • http://files.riverrunranch.net/uploads/1/3/1/6/131637477/gotiwisilegasuw_sazusosubekef_rupuvar_kaseb.pdfIn PDF document text
    • http://files.internationalflowartsday.org/uploads/1/3/0/9/130969841/b5b4aa5e82406b3.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/1/0428/9835/8432/files/669297692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/60286355846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gozoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4466/files/53947062245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/tifizugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/wufiforipebowugidogodixuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/42229843006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/45599287978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/99550960201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/nelilotiwopajurujer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/risose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5981/3279/files/82349507970.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 7

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_off000072f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F9 5528 bytes
SHA-256: 250d88a14b33c9c88b381a742194754b74de4b2fbf96d2053f66f066551a95c2
font_01_sfnt_off000085d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D6 10052 bytes
SHA-256: fc4d16dc558b9bd3f933ff3ac2dcdb2f1125b0016a8369ae56c6c8cbca2083c2

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