Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6d0f036d7f5198…

MALICIOUS

PDF

116.5 KB Created: 2020-08-10 04:11:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4aa6ef04d87a4d315e8241678c4ecab1 SHA-1: 8edd10f4457eac5e94d65b1807ad97bb2e229463 SHA-256: 2b6d0f036d7f519898e00dd1f2620c5a811a9b8254698fd0dc7fa259545d80fe
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, pointing to 'https://ttraff.cc/pify?keyword=biblia+plenitud+pdf+online'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The file also contains a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of a malicious redirector is sufficient to classify the attack pattern.

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=biblia+plenitud+pdf+online In PDF document text
    • http://files.travelwithloridanette.com/uploads/1/3/1/4/131438718/14d415dd2d3e0.pdfIn PDF document text
    • http://files.elvesterbc.com/uploads/1/3/1/3/131378950/b9681a31.pdfIn PDF document text
    • http://birukowiz.sierissa.com/uploads/1/3/0/8/130874038/duxapuba-negogizir-digibaj.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0434/6429/4557/files/76885528873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/the_left_hemisphere_mapping_critical_theory_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/bunofunenafavopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3986/1408/files/xolasomitajurasidubegizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/sididowujuvufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/pazatotagodutinexediva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/kixaledufikubuzubese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7668/8798/files/xijigadajikole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/jonevus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/wumibufokepibofenabej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000187e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x187E1 1612 bytes
SHA-256: a596b331df0c9d8c40fdea56a557f6fbfd29588e6e2f9ef6623e9e8743d41e7b
font_01_sfnt_off00018fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18FEC 4952 bytes
SHA-256: d7b3295f0981e8d6c3276ade815a38996be12f4f7fca986ea114ed91e74fa53c
font_02_sfnt_off0001a0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0D8 10392 bytes
SHA-256: 0baf22231d132949ab3245e6e579ffecb22440924ebc5dff3860ed3715cde64d