Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7fa51199e352b42…

MALICIOUS

PDF

83.1 KB Created: 2020-08-22 05:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9781b85ae4221288b3c68db31ca58cea SHA-1: 8f670973d9cb507b45ad56c45e9c8bb9f29cadb0 SHA-256: b7fa51199e352b423c575471e1725aa49f19f964da3b48f6b6bf8c1270229f1e
242 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final destination. The document body and heuristics indicate a payment redirection lure, likely aiming to trick users into providing financial details. The presence of multiple unknown URLs warrants further investigation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=takealot+online+form In PDF document text
    • http://files.gtmgc.org/uploads/1/3/0/8/130814169/xojalisa.pdfIn PDF document text
    • http://lejamure.c-arrow-stables.com/uploads/1/3/0/7/130738732/6cd4d1d175e2081.pdfIn PDF document text
    • http://files.wilkensestate.com/uploads/1/3/0/9/130969905/dibux-vakoriduriwimo-rifavizapo.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/1/0435/9385/9231/files/trochanteric_bursitis_exercises_nhs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0397/files/boundaries_in_dating_henry_cloud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7895/9775/files/nfl_game_pass_international_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/wheel_model_of_disease_causation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/39722428016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/mofomagusitisom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/datizevakitazul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7619/8305/files/zitamov.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_off000109b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B2 4748 bytes
SHA-256: a3b25e2c1c6776d621df2d8869ed70ae789d9e43302c3cb9c3ed45eb706a43dd
font_01_sfnt_off000119c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119C5 11124 bytes
SHA-256: 7c4a91496cc8813ee22788be0bfaafdf2cfad56d1c8eaa2096f601d75074b651

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