Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c5babbd92f211ba…

MALICIOUS

PDF

45.1 KB Created: 2020-08-16 20:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: edcd3e2762b1aba8d8f4224056fdef83 SHA-1: bad18e4790296cca896da185e0cfcdf7b6d21053 SHA-256: 9c5babbd92f211ba0fa6f2ed6b606b030ebd4f10c1a03604e2c5cf44ec55317a
194 Risk Score

Malware Insights

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

This PDF file contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, appears to be a lure for a lab report, likely to trick users into clicking the malicious link. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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.com/pify?keyword=osmosis+across+a+concentration+gradient+lab+report In PDF document text
    • http://files.jmccarthyphoto.com/uploads/1/3/0/7/130775245/6808483.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/1/0428/5107/4214/files/senuluketisaxikax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/32322912115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/abound_abbott.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/jonabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/9669664948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3817/0526/files/gun_mayhem_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/29212575472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9107/4976/files/xutafugijirifafifojer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/46875178528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/56622582978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0053/4952/files/wuwulibefa.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
🗂 Part of campaign: historicalsocietymaleny.com 4 samples

Related samples 5

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_off00006402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6402 5348 bytes
SHA-256: 0b2b3f496aa5fe5be5d38dd132fa3276be3bcc8de790d50030fc5fff36e53c51
font_01_sfnt_off00007605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7605 10288 bytes
SHA-256: 205913c5eff43a98e70fa97c2ecb7102648bfb2b681b038681aa6f59ded124c4
font_02_sfnt_off000098ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98FF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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