Malicious PDF — malware analysis report

Static analysis result for SHA-256 8935c3859a8c6422…

MALICIOUS

PDF

32.7 KB Created: 2020-08-06 02:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10773314ca3905063651a441968f032d SHA-1: 78343f9fe7700818afed2466c04d055f63ee17d8 SHA-256: 8935c3859a8c6422a86ab95824a9f624b043337ea75cd75e5c9fdb7bab69b1b2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=tanaman+belimbing+wuluh+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting an attempt to drive traffic to malicious sites under the guise of providing PDF documents. No scripts were extracted, but the presence of embedded URLs and the critical heuristic firings strongly suggest a phishing or scam 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.ru/pify?keyword=tanaman+belimbing+wuluh+pdf In PDF document text
    • http://files.theredpillrenegade.com/uploads/1/3/0/9/130969297/kuxamopuruwa.pdfIn PDF document text
    • http://files.imural.ca/uploads/1/3/0/7/130776022/ef0a88d9ca6fb0.pdfIn PDF document text
    • http://files.ecodirectcleaners.com/uploads/1/3/2/7/132741375/4524406.pdfIn PDF document text
    • http://masepazak.myapexhomeinspection.com/uploads/1/3/1/3/131384401/1506315.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/1/0436/0408/2851/files/misote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7913659608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/arabic_numbers_in_english_1_to_1000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/jidaninexixejiragoxegab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1626/4616/files/45530973202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9308/9692/files/70519414239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/57530810089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0064/3236/files/67743882420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2201/4885/files/pekato.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4215 5364 bytes
SHA-256: a8ed269f59bd3146abee42e9b03af08bfd2d6a3cab215a172287d90c75bd0dfe
font_01_sfnt_off0000543e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x543E 9856 bytes
SHA-256: c6ba569806dac0f88b6964732cdf2b7644055b66fc6ada3d466921957dcf62f9

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