Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d49057cccc80fd7…

MALICIOUS

PDF

32.0 KB Created: 2020-08-15 15:23:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4513e90f8ebe4dd6517bcef66a218d2c SHA-1: fef906a2b70b622965c7e2a53b1921fc853189f7 SHA-256: 5d49057cccc80fd7ff382235fff6a74e7f0004102ab7343e4a91306fff03b161
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/wb?keyword=visa%20application%20form%20people's%20republic%20china%20pdf'. This indicates a phishing or malware distribution attempt. The ML classifier also strongly flagged the PDF as malicious. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a link farm or redirection strategy.

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.com/wb?keyword=visa%20application%20form%20people In PDF document text
    • http://teguwipow.kaliaofelenite.com/uploads/1/3/0/7/130738667/6d129d34f1.pdfIn PDF document text
    • http://files.the-trade-depot.com/uploads/1/3/0/8/130874575/3369454.pdfIn PDF document text
    • http://rapisujan.passivehabits.com/uploads/1/3/2/3/132302720/ab76593.pdfIn PDF document text
    • https://ttraff.com/wb?keyword=visa%20application%20form%20people's%20republic%20china%20pdfIn 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/1/0433/1339/7913/files/28410762353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/ignou_bsc_mathematics_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/71317486875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2907/5880/files/fractions_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/vejitetetozipevebigogase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/limawafilezuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/via_aerobica_y_anaerobica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/bup_admission_test_question_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/53690995264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/67231149527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/sekesetolunalezalore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/32862763496.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 3

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_off00004226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4226 5536 bytes
SHA-256: ab09a3a690d945f3e2b26f809ad90c421609c81e9f177d0d2a63429685e8bb98
font_01_sfnt_off000054bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54BD 8800 bytes
SHA-256: d4f780532ea9d5556bf765d9aaf66d578fd63a1e98a79b2bb49fcf315c959a44

Open this report in the interactive analyzer, or submit your own file for analysis.