Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ca9ced8245733a…

MALICIOUS

PDF

86.8 KB Created: 2020-08-05 00:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fab3d8e30c45c4eea3079d4b20d2b61 SHA-1: 184e4324fae094a608a366090d27009eed5e4d16 SHA-256: b6ca9ced8245733a285ffde150762befce9f3c3844f083c16c4400f6e5371739
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, with one specifically pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=botulism+symptoms+pdf'. This redirector likely leads to a malicious payload or phishing page. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The presence of a link farm suggests an attempt to game search engine results for malicious distribution.

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=botulism+symptoms+pdf In PDF document text
    • http://files.newtonblades.com/uploads/1/3/1/0/131069781/fabewopajino.pdfIn PDF document text
    • http://files.amitybrusharborchurch.com/uploads/1/3/1/4/131452799/wafup.pdfIn PDF document text
    • http://files.profiledesigntooling.co.uk/uploads/1/3/2/6/132681479/5027124.pdfIn PDF document text
    • http://files.bethlehemmbc.com/uploads/1/3/1/3/131380598/3edac810bb1954.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/1/0430/8323/5489/files/pimajugegesusajogodafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/75821477614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/74250130405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/lupaniguferakuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/69388002358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1829/files/vuvabena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3946/4341/files/60384995341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/48862591171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/xunopuwalinuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/jevivunafeguzosuvepekog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9803/files/simulador_ser_bachiller_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/f_critical_value_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/divulofuzasosukamadifen.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 8

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_off00011700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11700 5032 bytes
SHA-256: 222c71090b6a0a9fbadb5fb629575151d84c413c8030700c2a85bb8f6c98818b
font_01_sfnt_off00012824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12824 11324 bytes
SHA-256: 4187222f1a5866d7a2ea85c053623497f80abb97e9d5a4f0b599950777140145

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