Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b2c144b5726f57…

MALICIOUS

PDF

40.0 KB Created: 2020-08-06 09:19:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 025c36005f4ec8923a40ffa5d94f0308 SHA-1: 3579435ec8a45f2bc43362008f55833d434256b5 SHA-256: 05b2c144b5726f57c224130b019e91341c35672e95b7ab7c848066f9f0f92ca2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to redirector infrastructure. The primary redirector URL is 'https://ttraff.com/wb?keyword=rosetta%20stone%20level%201%20english%20pdf%20resuelto', which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to drive traffic to this malicious site, likely for phishing or malware distribution. No scripts were extracted, but the extensive link farm and redirector usage strongly indicate malicious intent.

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/wb?keyword=rosetta%20stone%20level%201%20english%20pdf%20resuelto In PDF document text
    • http://files.lakecountryphoto.com/uploads/1/3/1/0/131070089/3902508.pdfIn PDF document text
    • http://files.devinmgill.com/uploads/1/3/2/6/132695492/bcffeb90.pdfIn PDF document text
    • http://files.manatsutanaka.com/uploads/1/3/0/7/130739450/411199.pdfIn PDF document text
    • http://files.oldwisdomnewmoon.com/uploads/1/3/1/4/131406563/kesubosabob.pdfIn PDF document text
    • http://files.virtualchip.com/uploads/1/3/0/7/130775231/xisawu_rironagobot_rulamazuwi_kinolokala.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/1/0433/0687/7080/files/75815848510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/97507059901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6064/8343/files/34600133473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/buwuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/varuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/puziritotesokebate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5109/8007/files/27634999603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3357/files/riseruxapavowiridutelixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/12568534050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8782/9928/files/kolujejiwijizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6745/5128/files/62414276121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/xudixoxejaworofunanisen.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_off0000500b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x500B 3560 bytes
SHA-256: 9ecc3575ef7e4a243301f3070ec427d8341f6df764d0050204599baa9f353817
font_01_sfnt_off00005cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF0 5420 bytes
SHA-256: f27b77a2dd6edab84b7e337d5da3d67af2abe0f7908c7131a45e0161ccca6757
font_02_sfnt_off00006f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6C 10308 bytes
SHA-256: 4793a77e45212feb0a227acfe08660acda6a923efdc0afe4aea99a3875ea7529

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