Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6665e94d12d6bae…

MALICIOUS

PDF

39.9 KB Created: 2020-08-04 15:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7364df08bff83d004ed3c8ba7660957 SHA-1: be7b4a1aea636b5fa19a0333d0a30cef7dfa0f09 SHA-256: e6665e94d12d6bae0e61e8bd53c5d6239e1e241cebd15b6fb615eba2b27f32cf
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file is also flagged by a machine learning classifier as malicious. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely for SEO poisoning or distributing malicious 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=materi+bilangan+berpangkat+dan+bentuk+akar+kelas+9+pdf In PDF document text
    • http://files.winndems.org/uploads/1/3/1/3/131383791/vesinobafigan.pdfIn PDF document text
    • http://files.charlottecblack.com/uploads/1/3/0/9/130969427/2798aa03b0e19.pdfIn PDF document text
    • http://files.savinggracearizona.com/uploads/1/3/1/4/131483371/dinune_mabepala.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/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/transnational_organized_crime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1683/8558/files/xabokosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/vomoxevujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5950/files/resurrector_mech_serum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/zizesinepanix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/94318254480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5785/7187/files/6638078155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/guvilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/minecraft_scoreboard_death_counter.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 5

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_off00005be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE5 5572 bytes
SHA-256: f9cab2851a273aa06281037f67ba2febe6418923d921e69ce74a1ecc134a8c06
font_01_sfnt_off00006eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEE 10284 bytes
SHA-256: e6319a1b4868eee55970877458e38d0a96edd6ded631ed329cd07740e0c164c9

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