Malicious PDF — malware analysis report

Static analysis result for SHA-256 c21921011ab8babd…

MALICIOUS

PDF

51.6 KB Created: 2020-08-11 07:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2c9e09e461fc080b2ae2c716bafa022 SHA-1: da97df2b17d0c6fb41b83e4cb658977009072afc SHA-256: c21921011ab8babd3108b4311d8498faf569073a3ed246655259b745e8430655
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to downloading a Catholic Bible dictionary PDF, which is likely a lure. The redirector URL is designed to lead users to malicious content, potentially for further exploitation or credential harvesting.

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=descargar+diccionario+biblico+catolico+pdf In PDF document text
    • http://files.russcarlton.com/uploads/1/3/1/4/131453214/c6f6eb4dafc8.pdfIn PDF document text
    • http://files.lightingshowroommullingar.com/uploads/1/3/0/7/130776046/jasopuwanezisorowa.pdfIn PDF document text
    • http://files.rachelteaglelpc.com/uploads/1/3/0/7/130739298/lurosigaruzopab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/getezugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/21476254312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/budget_2020_20_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/15850836545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/87913327182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9520/3745/files/vexapilerevikoreseje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2364/6365/files/88709980221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/bonowabetexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/what_is_ontology_in_qualitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/dabuwexotevuxidimiwevefed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5634/0890/files/gozumobaromafegifoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7018 5252 bytes
SHA-256: 6b61bcfe451449d70cba6986fe633287d6374e93f7d3ae0affbcd97669625ded
font_01_sfnt_off000081f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F8 15888 bytes
SHA-256: a38978b3a1aa85fef11e7fd3b40bac171b57796abf7d78b7e9bcf3751bfbb58d
font_02_sfnt_off0000b133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB133 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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