Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ada8825ef5aaa10…

MALICIOUS

PDF

40.2 KB Created: 2020-08-10 09:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e090d2be9d6621dde22769912ef19d36 SHA-1: 3cab4a27568f957d2ca013df3f955e64b0297372 SHA-256: 7ada8825ef5aaa1029d964ffea6624dbff340af5c4aeda867b68617e0137baaa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.ru). The ML classifier strongly indicates maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms that the redirector is known to be malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to lure users to a malicious site under the guise of providing a PDF document.

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.ru/pify?keyword=bible+commentary+old+testament+pdf In PDF document text
    • http://files.northerntracker.ca/uploads/1/3/0/7/130776542/6348113.pdfIn PDF document text
    • http://files.offthehookkiteboarding.com/uploads/1/3/0/7/130739699/9697ecaa6ae4.pdfIn PDF document text
    • http://sivunum.miguelamado.com/uploads/1/3/1/4/131453850/gejemib.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/1/0432/5461/2123/files/43840208251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/23092158464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/que_es_el_cambio_climatico_para_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/6924493724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/zonobakubanonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/brute_force_attack_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0549/9803/files/comcast_dns_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/pudetedasugamor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/58485768745.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
🗂 Part of campaign: evansconstructionconsultingllc.com 7 samples

Related samples 6

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_off00005c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C34 5592 bytes
SHA-256: 64c745eb3cd64bd3ab1158190e652521be7705460723add31e997c285d1312fc
font_01_sfnt_off00006f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F23 10876 bytes
SHA-256: fa27d02f0c03b946432013627ee1f7d0490757450aa19b2bf34e33824e355eb6

Open this report in the interactive analyzer, or submit your own file for analysis.