Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a32827fab6fac1…

MALICIOUS

PDF

71.4 KB Created: 2021-01-06 02:51:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7e3e5695e4b0a18a0f55de7f0ff36971 SHA-1: 6fd2b7685e1e72bcee692fa7621f9fd69b1a11a2 SHA-256: 67a32827fab6fac12f55a2feb96309b2c117da4a8c88d50da08b43b9a7dfe628
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a large number of external links, indicating it functions as a link farm. The presence of multiple disposable hosting domains and UTM parameters suggests a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious intent, likely to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?utm_term=medical+fitness+certificate+form+42 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369638/normal_5fd3c7922dbfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454052/normal_5fa1cc3a1ad4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390642/normal_5f95213d1a5c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381287/normal_5fd6de400f7a1.pdfIn PDF document text
    • https://bemitobiz.weebly.com/uploads/1/3/4/6/134681698/576912.pdfIn PDF document text
    • https://gabesusot.weebly.com/uploads/1/3/4/8/134895193/1e091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f872d5f205aa.pdfIn PDF document text
    • https://labopepiw.weebly.com/uploads/1/3/4/7/134747507/kalasijigi-finumebog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414696/normal_5fa902ce53048.pdfIn PDF document text
    • https://fafefojesuvun.weebly.com/uploads/1/3/4/6/134651362/1765382.pdfIn PDF document text
    • https://gedepavo.weebly.com/uploads/1/3/5/3/135391693/dazemibexo.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/jhjjabi/bolevajetafenugorired.pdfIn PDF document text
    • https://pojuzalik.weebly.com/uploads/1/3/4/2/134235388/nubulipiz-kodaj-veniwitawagesi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e636a278-53c7-4efd-a1ca-9edcbfc6620b/kotamevik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c80e6d72-734c-4e2c-b42b-a9c0b4bcc880/ravefovexodefitonomi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74E 5392 bytes
SHA-256: 83231d965129b107145ec9498770caf2d650caac6758c84bcaed16aa1a0dd90a
font_01_sfnt_off0000e99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99C 11532 bytes
SHA-256: 3ae2d201b86517b2814462872d268e5875c5a0ec79ce66b496dc00832fbbc6be

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