Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d5e63d1641b429…

MALICIOUS

PDF

46.9 KB Created: 2020-07-29 14:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe683dc0775748d0f3869673f9aefddb SHA-1: f7ef05f2490ac5f2a34a0fdf10eef383cc9f4f2c SHA-256: a9d5e63d1641b429588f92ba33b307c86e05b45d9d9a59635d20c99be049b948
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to ttraff.cc. The document body, though heavily obfuscated, contains text related to a 'budget speech 2020 south africa pdf download' and mentions wkhtmltopdf, suggesting a lure to download a malicious file. The presence of numerous external PDF links, many hosted on Shopify, further supports the SEO link farm tactic.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=budget+speech+2020+south+africa+pdf+download In PDF document text
    • http://files.magickc.org/uploads/1/3/1/3/131398088/fuxejijugog-jikir-difalime-goporufep.pdfIn PDF document text
    • http://files.richardjespers.com/uploads/1/3/1/1/131163632/4699160.pdfIn PDF document text
    • http://files.namistcloud.com/uploads/1/3/1/0/131070313/347954.pdfIn PDF document text
    • http://files.ceciliafernandezfotografia.com/uploads/1/3/0/9/130969842/3477992.pdfIn PDF document text
    • http://files.rams-doc.co.uk/uploads/1/3/0/7/130740149/mepev.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/1/0434/7258/4870/files/38773792611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2596/4949/files/82592918469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuxevitilikibuvenimomabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/85359151730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/35905606391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/munivipomugizuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6116/4697/files/79299272641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5991/files/laribototikejapod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6174/6595/files/degabumikisedixigawusome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/63883931636.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_off00007851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7851 5716 bytes
SHA-256: 13e90646baa589915bd6653d2ecfecec93f2651ace7fbf896316d0ced6714765
font_01_sfnt_off00008bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD6 10156 bytes
SHA-256: a1cb2a90455bb188531ca8d884c6346e7ce1db6932a6587de4eb80f854bcd5f0

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