Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6524aeb66e15982…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 20:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9439b01567f7f2bd9db9ee792285a38e SHA-1: 30d2f8838a23472bed9a7b9213e264fbe6286147 SHA-256: c6524aeb66e1598212cb1c56e60363a78d6a8d5add448d391aa6d9f9ac7d61f6
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, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure related to joining PDF files. The presence of numerous external links, many hosted on Shopify, further indicates a link farm or redirection strategy. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the PDF.

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=joindre+2+fichier+pdf+ensemble In PDF document text
    • http://files.oasweet.com/uploads/1/3/0/8/130813829/jujogafewokif_zevet_tabuseje_ruvider.pdfIn PDF document text
    • http://files.rscds-stirling.org/uploads/1/3/2/6/132695493/9666657.pdfIn PDF document text
    • http://files.holmescreekbc.com/uploads/1/3/1/3/131384081/wiramigazexon_voropizoza_wovawepazexev_xojikow.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/1/0429/5265/5004/files/ad_d_monster_manual_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/65439774558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/93867769747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94260126358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/canine_distemper_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/pedezivikexuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/19031231820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3570/files/escape_games_24.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sutapazuvonovojikujabera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4469/2383/files/xogojesikebiteboxafefive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0337/7824/files/classes_of_organic_compounds_and_functional_groups.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 6

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_off00005d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D14 5156 bytes
SHA-256: 60d0b91942e456dd4a05b8a1bda16dc321a67eb4ecd13878b7c6ae959fa82833
font_01_sfnt_off00006e59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E59 11596 bytes
SHA-256: a278b4e7d88910d8a970a4b3854d848722dc12a1af60b2260de30c451daa7dec
font_02_sfnt_off00009284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9284 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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