Malicious PDF — malware analysis report

Static analysis result for SHA-256 1682ae46b07d25de…

MALICIOUS

PDF

113.1 KB Created: 2020-08-08 14:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 140629c7fd26e3f66df654df2bf0918c SHA-1: 7c1ac89980ec252399518dcf6a8a5b84239ba6b5 SHA-256: 1682ae46b07d25de3369ea994468daf40116f1e1fb51183f1bebf8a0a287f1df
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious URL (ttraff.cc). This is a common tactic for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of a redirector link further supports this. No scripts were extracted, but the document body contains a URL that is likely intended to be clicked.

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=paracetamol+mechanism+of+action+applications+and+safety+concern+pdf In PDF document text
    • http://files.tommytrenchard.com/uploads/1/3/2/6/132682868/2604567.pdfIn PDF document text
    • http://navutipam.nssla.org/uploads/1/3/0/8/130874524/pimaj-mexipogapezigen-livofumupefimub-gigozunox.pdfIn PDF document text
    • http://files.chicagoschoolofgrappling.com/uploads/1/3/1/4/131409170/312064.pdfIn PDF document text
    • http://files.handcrafted1995.com/uploads/1/3/1/3/131379706/zogaziv.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/1/0433/4993/4229/files/bomojejituboki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/nulepotudegemewetisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4485/2127/files/pdf_to_word_ocr_software_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/31980891546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/xuvededuzogevezowasamipig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/41906171480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/tefiwanosivunajurajeket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/mupugovafutefaponu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/16140929083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/96158111974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/palotij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1710/7616/files/gexomowe.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16397 5496 bytes
SHA-256: 502113a6462eb0a7e3f46f66f93a10b106827cfd50a400cb01fdf33a765a59c3
font_01_sfnt_off00017626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17626 11912 bytes
SHA-256: 48936ca11dfcffa6e34b767784424a0e0fc1f3dcfe5ad3e5cdb162590583d033
font_02_sfnt_off00019eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19EEF 16100 bytes
SHA-256: f4f5fb0209a4714c3cbdfe9b8e29dbdabffe5d2cbe58e8cc741460ff97ba63ed