Malicious PDF — malware analysis report

Static analysis result for SHA-256 e224eb91f43fff25…

MALICIOUS

PDF

65.9 KB Created: 2020-08-27 20:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a2c4fafe7aa5cb09fa292a3e26bce2c SHA-1: 09ca4d979352950fae89cc7e58f7da97e277e55d SHA-256: e224eb91f43fff25d3888efce3a5b8f1a7d1689475ce2b8cf5e9e36b86389388
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the title 'Mini rex color guide' and the malicious URL, suggesting a lure to a malicious site. The heuristics indicate the PDF is designed to redirect users to potentially harmful content.

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=mini+rex+color+guide In PDF document text
    • http://files.spikemclarrity.com/uploads/1/3/1/3/131384081/24d7f13.pdfIn PDF document text
    • http://files.twosevenbaseballcamps.com/uploads/1/3/1/8/131857270/movuzatodof_jukelakol.pdfIn PDF document text
    • http://lukibuwe.lodgeyggdrasill.com/uploads/1/3/1/4/131453574/7f68719.pdfIn PDF document text
    • http://luwedabi.ryaninglisguitarlessons.com/uploads/1/3/1/8/131857114/9394435.pdfIn PDF document text
    • http://zokugax.caralarmandradio.com/uploads/1/3/2/7/132741555/6728647.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/1/0432/5244/9444/files/66506553683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/nakalalusitebinutowokureg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2674/3201/files/leporavebusirasezokofumon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/59659087227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/ought_to_and_should_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/buporimukujiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0698/4098/files/xixolosituxeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/redap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5999/2990/files/echo_srm_2100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/56835537155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4895/9141/files/vejuveto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/fizelit.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A8 4596 bytes
SHA-256: 3c01118b90e87ce91b7572b7867f7d91a026a7a69cca2b2da6ca000edebbdb6a
font_01_sfnt_off0000c745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC745 11000 bytes
SHA-256: abf3f25e5ff5e3686121a3b430c684a72871fa5f0dd4540e222c9db41b3cd20b
font_02_sfnt_off0000ec56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC56 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230