Malicious PDF — malware analysis report

Static analysis result for SHA-256 051a24adda3c129c…

MALICIOUS

PDF

59.8 KB Created: 2020-08-31 06:32:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63a1097da53099fa067e735bef76bae1 SHA-1: 1f28e378b6f46be3f6a22bd7e5613d4f5bdf2847 SHA-256: 051a24adda3c129c0e3df5033a36a56f698bbbab1ca23337eac2ab5844f1c5d4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.ru/wix?keyword=hakeem+agha+jee. This URL is identified as a malicious redirector, likely used to funnel victims to phishing sites or download further malware. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/wix?keyword=hakeem+agha+jee In 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/1/0436/2190/8640/files/74009176586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/dopidasuvataremedut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/capital_markets_authority.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7525/4937/files/asvab_arithmetic_reasoning_study_guide.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c3f88d_3e172881da8b4954ac376b517fd5ef60.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1fbf8b_d1bed89d0d194b0daa91b0b7be863740.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_57ff512707e844248063155b12a8eefa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_389e28f9367e4cf89da86e62cfa2bef7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b98abb_a3e2a659860246198f80292f5d0526ba.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_12a2c83f2b20499789281d00ed5d31f4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/daca0d_30c993d95ad648d88f152ec2c4f272d2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9f6a24_bc44f4c6322a44b6b2856889d7c2e0cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b5472a_591612170d7a4b4fac32711ecc57513c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/dd4472_7189638fa2704feca57203326dd9f741.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/430cb2_827416624b4141c0b19a95973083b63a.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9689 4896 bytes
SHA-256: 3a9e928163b137c55a249f0973f5c110258d925e648d147a18b2aaa987b82cd3
font_01_sfnt_off0000a71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA71C 10540 bytes
SHA-256: 5d4e4df8ee02d32ed77d9eea510e04e8efdc1a8b67cc386c2f8e5668fe707177
font_02_sfnt_off0000cb37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB37 16196 bytes
SHA-256: ed614ff3ac2e387b3dffe3adc8533a73dd514e171fc201cb60d70b5b5a32e0ff