Malicious PDF — malware analysis report

Static analysis result for SHA-256 64eb43d777e67103…

MALICIOUS

PDF

76.4 KB Created: 2020-12-19 20:44:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 6894e569d39aaf66aca53d7e09f15a55 SHA-1: 3013808d6c60a4d30ddf7e2de4034693c645de03 SHA-256: 64eb43d777e67103d6e3f3446da7bb064eb56dd238646a41c99b19fe204d2d84
244 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links pointing to external websites, many of which are hosted on disposable domains or known redirector infrastructure. The primary URL identified, 'https://gettraff.ru/strik?utm_term=read+house+on+mango+street', is flagged as a malicious redirector. This indicates the document is designed to lure users to malicious sites, likely for phishing or malware distribution.

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
  • 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.
  • 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.
  • 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://gettraff.ru/strik?utm_term=read+house+on+mango+street In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366645/normal_5f89b7b9eeaf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379048/normal_5f8af3f62ccaa.pdfIn PDF document text
    • https://nopeludaseji.weebly.com/uploads/1/3/3/9/133986928/bb73b066099b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402247/normal_5fcdfe36eefb2.pdfIn PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/7af12562e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5f8f07f2b0af4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5f902cb7b4b4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423452/normal_5fcf2ee4785ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8859a79b27f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414688/normal_5fa7c5ead3555.pdfIn PDF document text
    • https://sefusozikoju.weebly.com/uploads/1/3/4/3/134366316/370aa175b852.pdfIn PDF document text
    • https://lafadulow.weebly.com/uploads/1/3/4/5/134591129/jisokokogulegam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426088/normal_5fba067713e78.pdfIn PDF document text
    • https://fupebabo.weebly.com/uploads/1/3/4/6/134601971/7659779.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://s3.amazonaws.com/rubidokezive/goditikosakegan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab688604-db78-4278-b0fa-e9f416a8d37c/ppsspp_cheats_persona_3.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_off0000e05d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05D 5048 bytes
SHA-256: 67499c8d16a8c202b18a77a436642e4ae2210adfeb423b3f22df6b4a2c6426fd
font_01_sfnt_off0000f151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF151 11032 bytes
SHA-256: 1ecf00e2043a42ddb44d9cbfca5bf11c9dffe87a57d5ab94d539e467ff7d8864
font_02_sfnt_off000116c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C8 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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