Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a33ee786ae31ad9…

MALICIOUS

PDF

43.2 KB Created: 2020-08-15 10:13:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44b3dc9bde085e3a3634ebeb80908d4c SHA-1: 6f77acf77baebfbda1269e8a63a646e6b775b24d SHA-256: 2a33ee786ae31ad9ec3646ea18fc127155003f35ea99f8050ae595cd89e91586
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, contains text suggesting a lure related to 'world countries and capitals map pdf', and the heuristics indicate a fake invoice/payment lure. This combination suggests the document is designed to trick users into clicking the malicious link, likely leading to a phishing page or malware download.

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.ru/wb?keyword=world%20countries%20and%20capitals%20map%20pdf In PDF document text
    • http://files.holyfamilystowathletics.com/uploads/1/3/0/9/130969699/vojawawimalajoxomeko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/best_free_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9292/files/60920607319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5546/files/vibasegimiximemik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5078/5173/files/42285746108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/51754463676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/30030474517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1466/5878/files/journal_articles_on_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5126/1853/files/17390878910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/wisunawoguvivaxuzubal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lugapib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/skyrim_alchemist_build.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C63 5196 bytes
SHA-256: fb01a8decb4b3bb7595567304feb2c955aed92ecb5359a4c73c31a27216908d9
font_01_sfnt_off00006dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFF 10524 bytes
SHA-256: 449c9fb6cb6a6e50907b137c9aefbca56e41825606ce6b45b8cfcf6f84bf4ca9
font_02_sfnt_off00009205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9205 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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