Malicious PDF — malware analysis report

Static analysis result for SHA-256 a626bdefc849ad19…

MALICIOUS

PDF

63.4 KB Created: 2020-08-06 18:05:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0325a4554ac39815ff6e050c763e8fd SHA-1: f5aeac560a54538442b02b411c15b1f331c2bc24 SHA-256: a626bdefc849ad1976de964df2dbe44fb3eedae3c30eba068fcb9c7ece6e69b9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded URLs, with at least one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=roman+art+zanker+pdf', which is a known malicious redirector. The presence of numerous links, including those hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=roman+art+zanker+pdf In PDF document text
    • http://files.newsomekingdom.com/uploads/1/3/1/4/131437508/e6a5c46be0a.pdfIn PDF document text
    • http://files.alphachieta.org/uploads/1/3/0/7/130739525/virewatawe-nobesuniwaki.pdfIn PDF document text
    • http://files.stjohnsfoods.com/uploads/1/3/1/4/131412181/2e53ec0c5f.pdfIn PDF document text
    • http://files.europeanburmesebc.org/uploads/1/3/2/7/132740804/suxeribeduris_mubagaw_niwapaloze.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/1/0434/2946/2177/files/80179727104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/40679607332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2338/files/zujajepivaxekebobosol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/zabaveberetereg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5470/1461/files/95940967811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7838/3771/files/burbank_city_jobs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/36696877625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3860/4450/files/41790108793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7836/7897/files/list_of_english_words_with_meaning_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5655/4394/files/xotuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8034/1917/files/bakoxopuxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0886/8008/files/99878982923.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: europeanburmesebc.org 4 samples

Related samples 4

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_off0000bcae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCAE 5100 bytes
SHA-256: 328df2757658699aa784b7d27361c8a9e6eba888bf7718eada55660d20a4f4a6
font_01_sfnt_off0000cdff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDFF 10212 bytes
SHA-256: d4e8b28c642c8381be80b29d95bb1c1f94f6841e11a13e953c1cece4229cd406

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