Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26ce3638c8b0c9b…

MALICIOUS

PDF

54.3 KB Created: 2020-08-12 16:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01256c30ebfd137bc31e78d4f65dbdd3 SHA-1: ab0191c5c9b15cd65e32c6d407d42c11dba11441 SHA-256: f26ce3638c8b0c9b801773492c1b8b7c886370bf903b259d38cab3ad85c58270
194 Risk Score

Malware Insights

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

The PDF contains a lure related to a technical book download, which is a common tactic for advance-fee scams. It embeds a link that redirects to a known malicious domain, ttraff.cc, disguised as a URL shortener. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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.cc/pify?keyword=elements+of+statistical+learning+2nd+edition+pdf In PDF document text
    • http://files.banriapharma.com/uploads/1/3/0/9/130969368/5203367.pdfIn PDF document text
    • http://files.standrewbythelake.com/uploads/1/3/1/4/131438784/tudomu-jopaxubusadukom-nafitodazaduv.pdfIn PDF document text
    • http://files.functionloops.com/uploads/1/3/0/7/130740255/zuvupak.pdfIn PDF document text
    • http://files.rendokai.co.uk/uploads/1/3/1/4/131453967/dadadolekorejin.pdfIn PDF document text
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/2/6/132681938/wovaxale.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/1/0432/9776/7592/files/xofokurawisiwefajenij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lunizededalusabunis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/emotions_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1932/files/27453908615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3976/0295/files/guzufirukevoditatodirerox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/62821200222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/famosanirolikoles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0894/1467/files/biodata_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2347/3568/files/inuyasha_secret_of_the_divine_jewel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4775/3640/files/vesoxekubiwaxumosamabebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/53522304455.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8680 5352 bytes
SHA-256: 8d3ae3ebd5c2666765abf90fa0a5e953821bd48b322f88f91575e0a4d7ddc380
font_01_sfnt_off0000989d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x989D 10728 bytes
SHA-256: b7f21cd3a19fe363b9791471cf56cd8c288d562650d2fc9ea5a958f9de1643c7
font_02_sfnt_off0000bd38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD38 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.