Malicious PDF — malware analysis report

Static analysis result for SHA-256 8064e42519990065…

MALICIOUS

PDF

37.3 KB Created: 2020-08-21 19:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af3bd847cdebedbb4039acccddae0ff2 SHA-1: 36fc9bbb8bbf8e802e7e3f11f9b255d69667513e SHA-256: 8064e4251999006594c0ccdbf8dfc5ec554cbab2b023602ac55f669695fe7b0d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=double+sided+tape+sheet+metal In PDF document text
    • http://jotofopal.healdsburgflowers.com/uploads/1/3/2/3/132303307/ccfaf14e.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/1/0452/8999/6450/files/92635887801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/malayalam_calendar_2020_august.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2215/4908/files/zutemexabifoluzesuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nanejixiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/zemabowejomoxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/warobapisuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8439/9270/files/63488393050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/demoveja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/apprendre_l_anglais_grammaire_et_conjugaison_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1863/9765/files/46306918723.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4574 5020 bytes
SHA-256: 1ae8f8a4b9ca3118d36cf373428317393414e68dd61ed49277658b9106f1c02f
font_01_sfnt_off00005683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5683 12140 bytes
SHA-256: b2936cba4f14a1549c1147416d2e0d5bf87db15a96236070aeb798f922ff5e66
font_02_sfnt_off00007ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB8 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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