Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ab311f3e1335d5…

MALICIOUS

PDF

42.7 KB Created: 2020-08-18 18:56:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89456e63f33db92f3640cb1edf112eec SHA-1: 25de9e3419da065cc0a9ecf8ad43454fe1617379 SHA-256: 64ab311f3e1335d540d357a97a34e34dbce6f291c4e0a161332ede25dcade85e
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service, which is a common tactic for phishing and malware distribution. The document body, though obfuscated, contains text related to a 'machine breakdown report' and a URL that appears to be part of a link farm designed to attract clicks. The presence of numerous embedded links, many pointing to benign Shopify URLs but some to unknown or malicious redirectors, suggests an attempt to obscure the final malicious destination. No scripts were extracted, but the overall structure and link behavior are indicative of a malicious document.

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=tcode+for+machine+breakdown+report In PDF document text
    • http://files.pvjacksonwriter.com/uploads/1/3/1/3/131381450/1088063.pdfIn PDF document text
    • http://jekitam.prisonchoirproject.co.uk/uploads/1/3/1/4/131453133/wixisoda.pdfIn PDF document text
    • http://zekikewi.camdencollaborative.com/uploads/1/3/1/1/131164394/torisa_rusapojanowi_xerali.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/1/0435/6685/8408/files/mezupaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2632/5409/files/28318637112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/51469872903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2057/files/5904418419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/numexesisefedevibut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/28116790292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7078/3645/files/debowele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujaxitedidubabupopivup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/duzokafoniwomawalil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/20550425906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/james_stewart_early_transcendentals_7e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/accrual_accounting_definition.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB2 5216 bytes
SHA-256: db3b81500604a9185ee8ef30478a8ce2bc8b9e0de565198e6a7546abda2b4b4b
font_01_sfnt_off00006e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E45 10060 bytes
SHA-256: b8bf8390b16c38c1daf1bf9344a2b8fe60b456e800fba97f5efaec0ed8c3044f
font_02_sfnt_off00008fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDA 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378