Malicious PDF — malware analysis report

Static analysis result for SHA-256 adabc98d7be50e51…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 11:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa4e18f6653b6f189b18b9eeb4ba82d7 SHA-1: 254def26e7122848765abe95f5a28cb1e7c9af04 SHA-256: adabc98d7be50e510c6a7b7f746f08f5f8374596eb904706ec0f4381a8ba3f9e
194 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a phishing or scam attempt where the user is enticed to click a link under the guise of downloading a PDF. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

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=electronic+devices+and+circuits+by+j+b+gupta+pdf In PDF document text
    • http://nolazunuk.cptcinteriordesign.com/uploads/1/3/1/4/131407089/1bf1f6bfe20.pdfIn PDF document text
    • http://files.artsstudentsassociation.org/uploads/1/3/0/7/130739456/9143667.pdfIn PDF document text
    • http://files.shantiyogaashram.com/uploads/1/3/1/4/131406149/7378530.pdfIn PDF document text
    • http://xovafene.dchudphotography.com/uploads/1/3/0/7/130738779/d21e7.pdfIn PDF document text
    • http://files.kathryn-riding.com/uploads/1/3/1/6/131637631/f7a0a8b1.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/1/0430/6790/0061/files/latent_variables_in_psychology_and_the_social_sciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/1-_99_hunter_guide_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5913/3081/files/63382781980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/wijodigezabexukanemopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/paramore_brand_new_eyes_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/air_fuel_ratio_of_petrol_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7778/8057/files/hex_beam_antenna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3257/5132/files/fubufomutetogexufire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3742/0708/files/acrobat_reader_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/16966617530.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 7

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_off00005819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5819 5540 bytes
SHA-256: 4b620b594a9c6c059004fdcb4d75fee2ca8ace3b5fb7d8198a4456056b6adaae
font_01_sfnt_off00006b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B09 9832 bytes
SHA-256: 048d308b832b59a61479963fe8d422389bc419bcac87bfbb106b9263f612260c
font_02_sfnt_off00008cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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