Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f44096a3476f6b…

MALICIOUS

PDF

56.1 KB Created: 2020-07-27 07:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab8b248b294492bb147150028ae889fd SHA-1: ba2ed9b28d5e4ae41e509cf5f4271e16729ea95c SHA-256: e5f44096a3476f6be7aa0e6e067a10320f5f49788a471bfa26a7097a42d4ae21
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of a link farm suggests an attempt to lure users to malicious sites, likely for phishing or malware distribution.

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.com/pify?keyword=constraintlayout+android+example+androidhive In PDF document text
    • http://files.pmawm.com/uploads/1/3/0/7/130738933/lesutubivutuwi_tekivegirole_gagujapodunen.pdfIn PDF document text
    • http://files.peacefulplacesinc.org/uploads/1/3/0/7/130739718/suzibegedabuwijen.pdfIn PDF document text
    • http://files.woodlandforestchurch.org/uploads/1/3/0/8/130813401/5089e5334c98f.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/1/0430/0704/9877/files/gurerevilanazome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/64559101732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/buwadesun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/bakufuwefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5436/6877/files/1842191166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/26791487798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/nagovetuxawutumaruwasisim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8535/files/86189771670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/71947231471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/84683350111.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 6

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_off00008f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6C 5336 bytes
SHA-256: 912f2baa7f7bf9e011c464c7d05eef5df21b9095661c2808b9f0e7617acb9607
font_01_sfnt_off0000a169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA169 15924 bytes
SHA-256: 1f7bccbe979db2648c6dade2a7c499b06540c80ad9ddd70f565f7ad5f34bb93a

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