Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce1b6dcedb40a28…

MALICIOUS

PDF

48.0 KB Created: 2020-08-09 02:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60b4fdd67da92c09a5638aa79de49898 SHA-1: f8cebe870c18acd7b81c19f4d5e726d2854cc9d1 SHA-256: 3ce1b6dcedb40a28615658c3cae0189580f4eae563e7af51b5ed6a93ebc0da34
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=bonhoeffer+ethics+pdf. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links, suggesting a tactic to disguise malicious intent within a seemingly legitimate document. The heuristic firings strongly indicate a malicious redirector and a link farm strategy.

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=bonhoeffer+ethics+pdf In PDF document text
    • http://files.trinitybiblechurchglassboro.com/uploads/1/3/0/7/130775934/cc5b6074f3d66f1.pdfIn PDF document text
    • http://files.campingasseiceira.com/uploads/1/3/1/0/131070485/tetutigafixipa-toxodikexolibi.pdfIn PDF document text
    • http://files.peterbixbynhhouse.org/uploads/1/3/2/7/132741189/bibaxusadox.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/1/0432/1378/3199/files/steam_for_fedora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/letaxidapanofixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/3642321897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2057/3080/files/34313052016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/55176491224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2376/1571/files/nexekero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0390/3127/files/nrsv_with_apocrypha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/41385798317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/2553064380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/23769095255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1847/files/divulanewokonoxanubot.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_off0000734b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734B 4836 bytes
SHA-256: c4500aaa89fb0a26efa657c5cee672e5b04f894a64a223f87cd1d5f372b0ccd0
font_01_sfnt_off000083ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AD 9896 bytes
SHA-256: 393cc74988145601cd32b3eccb9b1fdd7aa8657326079f9633c98eb32284770a
font_02_sfnt_off0000a573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA573 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c