Malicious PDF — malware analysis report

Static analysis result for SHA-256 c55668d629626e85…

MALICIOUS

PDF

48.4 KB Created: 2020-08-01 07:39:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1f79df3afc89ff57529eb1fa403fe41 SHA-1: 7bf30bcfc6f7575a7e2c9f18f8249e28d6ce1309 SHA-256: c55668d629626e85178ffee23c0dc184bc569f096c310697a977830481826160
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to shopify.com domains, but one critical link directs to a known malicious redirector. This suggests a phishing or redirection attempt. The ML classifier strongly supports the malicious nature of the PDF. No scripts were extracted, so the primary attack vector appears to be the embedded links.

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=wind+death+knight In PDF document text
    • http://files.tgmwindsteppers.com/uploads/1/3/1/4/131437322/1823146.pdfIn PDF document text
    • http://files.cprep.org/uploads/1/3/0/7/130738836/vukudusuri-lalali-wowiwukivasox.pdfIn PDF document text
    • http://files.message6666.com/uploads/1/3/0/7/130738704/1e0a1fd35a.pdfIn PDF document text
    • http://files.belouge.com/uploads/1/3/0/8/130874403/midutakup-givinumowaju.pdfIn PDF document text
    • http://files.adrianpollard.net/uploads/1/3/2/6/132682990/pabemow.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/1/0435/9772/5864/files/73705049097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/5632679098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/39508437136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/86694166843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/dizuzalefefebavuraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9977/4364/files/24717548176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/33041521308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4772/1882/files/valunikeliwizujolosezim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4184/1575/files/puzepit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/nitifurowo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00006b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3D 4856 bytes
SHA-256: 4fde88aa1cda8b4633dbd0037f84c123eb61a61ef5fbbf4c8ccd7092cb667c73
font_01_sfnt_off00007bd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD4 10656 bytes
SHA-256: 5bff03624c84bec6975f4e0c8a75f47611a4c05bc124d6e127bd83e2be983e7d
font_02_sfnt_off00009ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFB 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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