Malicious PDF — malware analysis report

Static analysis result for SHA-256 38800ae08866ba26…

MALICIOUS

PDF

44.1 KB Created: 2020-08-17 13:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c39659bf1df7e525f8e249740d9831a SHA-1: ac5d04ccac9150cd3c4489a08f654f62940bedfb SHA-256: 38800ae08866ba26f15efc073b60b24c24999ec67610ab4d5ed47136dd1e36a8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One critical heuristic identified a PDF redirector link to 'ttraff.ru', suggesting a malicious redirection chain. The document body, though heavily obfuscated, contains text related to 'Catoosa county property tax information' and the malicious URL, aligning with a lure for potentially malicious content. The presence of multiple PDF links and a redirector suggests an attempt to lead the user to a compromised or malicious site.

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/pify?keyword=catoosa+county+property+tax+information In PDF document text
    • http://files.divinefaithtarot.com/uploads/1/3/1/6/131636655/nirekunijuv.pdfIn PDF document text
    • http://files.thetrashtalkblog.com/uploads/1/3/1/4/131438532/260a7f.pdfIn PDF document text
    • http://files.zzaircrewreunion.com/uploads/1/3/0/7/130738710/709b36020bcc.pdfIn PDF document text
    • http://files.grvac.org/uploads/1/3/1/4/131407102/fegojopo.pdfIn PDF document text
    • http://files.bakersfieldbreakoutzone.com/uploads/1/3/2/6/132681296/6664111.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/1/0428/5035/3318/files/pastel_accounting_for_dummies_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/54949985355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9424/9377/files/goxopekugasavajukikozaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/bajizelirekefasigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9269/5458/files/jemorotonadenatonevugelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6879/2733/files/machine_learning_algorithmic_trading.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0858/7936/files/rudram_lyrics_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9947/2551/files/ligituzuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/1320244437.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_off00006ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDC 5204 bytes
SHA-256: 6fb2692450c21ba6e222c0e3dc7aa03f12d95d1ac208ceb6e1ed51ca1d2d3ff2
font_01_sfnt_off00007f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F85 10444 bytes
SHA-256: a43a60e118959a10c9879899b105d693e237da8859fa307d844fb9867a7d4561

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