Malicious PDF — malware analysis report

Static analysis result for SHA-256 b38c141542079bd3…

MALICIOUS

PDF

48.6 KB Created: 2020-08-26 02:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68f9f5527436761c7ad422d3765638bc SHA-1: 0a7dd884f80e39b2435c6d7b1987b9b87847fcfb SHA-256: b38c141542079bd389a4c05600233adca5cc22fbaa6dc900f8c25e0724c37f31
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document also functions as a link farm, containing numerous links to external PDFs, many hosted on cdn.shopify.com, with the intent of SEO manipulation or distributing further payloads. The presence of a malicious redirector link indicates a phishing or social engineering attempt.

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=fumigar+para+polillas+de+madera In PDF document text
    • http://giwedod.laocdb.com/uploads/1/3/1/4/131482916/jagewomum.pdfIn PDF document text
    • http://files.downersgrovecpr.com/uploads/1/3/1/4/131410479/sajilusorisofixus.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/1/0433/0881/0398/files/wepomufaguxedizebaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6794/0765/files/robotic_arm_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7746/7288/files/negowokesinavorazezikojaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/crime_scene_report_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/giforekib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5981/7117/files/jigefev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/49895715708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/17854706877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5037/7126/files/biostatistics_lecture_notes_ethiopia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2071/4137/files/bikifotibu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCD 5236 bytes
SHA-256: 07942ec30aff7652009332381bc1ab30f025b322f464ff492d3b58efabc6b6d0
font_01_sfnt_off00008e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7B 11528 bytes
SHA-256: 6f806a97d7262d20aed9f86fc0884901215a91b0cd429c65d3a4a00eb1053021

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