Malicious PDF — malware analysis report

Static analysis result for SHA-256 7339f57c64ab7935…

MALICIOUS

PDF

53.9 KB Created: 2020-07-28 02:57:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51f5aaec14f639b2a4bfc9c31297b007 SHA-1: ade419ebc339baec2f19317a87b8799bf055374d SHA-256: 7339f57c64ab79353c2da86f193495b5da9d199019057a09d40ad1f4523c596b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links pointing to a redirector service (ttraff.cc), which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'Vibrant group ltd annual report'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the overall structure and malicious links strongly suggest a phishing or malware distribution 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=vibrant+group+ltd+annual+report In PDF document text
    • http://files.lambdogdoodles.com/uploads/1/3/1/3/131380728/1c52e6c.pdfIn PDF document text
    • http://files.mwri.co/uploads/1/3/2/6/132695694/bavowes_losexet_nijowepotuju.pdfIn PDF document text
    • http://files.markchristophergarrett.com/uploads/1/3/1/1/131163931/5856514.pdfIn PDF document text
    • http://files.dianastem.com/uploads/1/3/1/3/131380998/9567351.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/1/0433/2870/0571/files/30369195434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3686/0839/files/vibumupilotisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4690/files/penekavetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/pejivelavigafovodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/baxijis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/rubisadowuzavapirujifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/91969576395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1864/files/zibukevexepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/85875953036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6140/files/82022472294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/90211235414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/41984620226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.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_off000086f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F9 4936 bytes
SHA-256: c54bf23773bf53089427c747f0531082fad1f3ad15abc04abb5915f91d39f9df
font_01_sfnt_off000097c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C2 15504 bytes
SHA-256: efc7af7334272d63a494d877d334018f6a99274887d067dc69e55ca1f697dc09

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