Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5dc289b80851dd…

MALICIOUS

PDF

57.6 KB Created: 2020-08-04 21:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c43ea319c47a7d98a63011d7255ce6c5 SHA-1: 73b0a4e4ab56136ba5b3eac27f9ccce0bd2c6886 SHA-256: 7e5dc289b80851dd7f3c0728ce5061417ef8814924e3a43eae4377e7d3b0900d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, contains URLs that appear to be part of an SEO link farm designed to lure users into downloading further malicious content. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malware distribution attempt.

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.cc/pify?keyword=journal+el+khabar+algerie+aujourd+hui+pdf In PDF document text
    • http://files.readersbeware.com/uploads/1/3/1/4/131437669/dubevemir.pdfIn PDF document text
    • http://files.chrisremitzcpa.com/uploads/1/3/0/7/130776042/xepigus_givelo.pdfIn PDF document text
    • http://files.alessclutteredlife.com/uploads/1/3/1/4/131406390/jadewunawo-vatesebad.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/1/0433/6533/5190/files/najumubatojowowiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/92267578189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/73644915376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/2996/files/zuwivarapafewutavev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8253/0472/files/vonixijizotosaxikisut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/86522797208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/paterimumasakeroravet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/29457442282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/kamafulinuwimidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2515/3698/files/hip_hop_dance_move_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/tobekovusetasije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/zofuxulexomejaze.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

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_off00007d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D74 5392 bytes
SHA-256: 48dff197f9b86cf46f334aaf796284c6e8d3f649151bf36badff5f5d07f2c5be
font_01_sfnt_off00008fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC8 12304 bytes
SHA-256: 9903e8279174eb746fb3d943fbd94fcf14c1ce21ad3c082d428075f2c212509b
font_02_sfnt_off0000b76f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB76F 19440 bytes
SHA-256: 238ebdfdd72421e55cb00447f9d7a3bd8b6d20234828dd7d09589b439f408959

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