Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0aa6d5e9a9046a…

MALICIOUS

PDF

39.6 KB Created: 2020-08-23 12:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e893167c78ddc399465a3d3bdac16568 SHA-1: bf1a188edddd160316285e1431a3e5503a325872 SHA-256: 0a0aa6d5e9a9046a25951ee99843f9ba6c8a9708e16e8e0a5f568a06ce0be4bd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though obfuscated, contains the same redirector URL, suggesting a phishing or scam lure disguised as a free download. The ML classifier strongly supports the malicious verdict.

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/pify?keyword=vishnu+sahasranamam+challakere+brothers In PDF document text
    • http://files.g-icide.com/uploads/1/3/1/0/131070591/6edf909518bda51.pdfIn PDF document text
    • http://kitisaru.lizykuttyrajeev.com/uploads/1/3/0/7/130776031/sojadowulil.pdfIn PDF document text
    • http://turomuvu.smwvumc.com/uploads/1/3/1/4/131437823/kekemoximale.pdfIn PDF document text
    • http://files.nextllcenter.com/uploads/1/3/1/4/131406149/pesuvusetap-sopop-jukekozipo-wexis.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/1/0431/0463/2998/files/36898228139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/vasuferulugukamumopifazit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/saveretuxamegufatoguwisan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/bukegonidobinevaniko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3633/1419/files/medical_terminology_dictionary_prefixes_and_suffixes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/ventilator_associated_pneumonia_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/2_chainz_crack_mp3_free_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5409 5208 bytes
SHA-256: bb11de630570b093dd9e57e4d44675102a83bc7fd11da9ca1363fa035f340b2f
font_01_sfnt_off00006583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6583 14112 bytes
SHA-256: f1acc337b0bb32c528168a8020b780de6979caf75b24d8860712a77301ef16de

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