Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f425b70bfb8f522…

MALICIOUS

PDF

70.2 KB Created: 2020-11-23 18:26:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ded89a7d7d0e2349825275156cba2431 SHA-1: 22a8a8dfbb5bae75b7f2f541c15146ce0fb5422e SHA-256: 9f425b70bfb8f522b16a0ae66799e8fa950ef25572ab1e4404b517739202841d
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to external websites designed to host further malicious content. The primary link, 'https://gettraff.ru/strik?utm_term=watch+the+hunger+games+free', is identified as a malicious redirector, suggesting an attempt to phish users or deliver malware. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, likely for SEO manipulation or to distribute malicious payloads across multiple domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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=watch+the+hunger+games+free In PDF document text
    • https://wejapofi.weebly.com/uploads/1/3/4/5/134590092/d63d8148c43e.pdfIn PDF document text
    • https://sekatuxu.weebly.com/uploads/1/3/4/8/134894727/23e5b7a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374537/normal_5f94cee1114de.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/ab724f1c868.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413117/normal_5fa5f4578cbd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5f8bd2d81b38d.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/1d1f8ecc085ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375515/normal_5f8be848de0bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389585/normal_5fb45c55bdd6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390330/normal_5f9e8e32834b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384645/normal_5f9a6f9a72e15.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/zaripijimasatosi.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/hotmail_www_hotmail_com_sign_in.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/icici_bank_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/44211959130.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/minecraft_pocket_edition_0.13_1_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/7589021542.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn 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_off0000ca12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA12 5276 bytes
SHA-256: 77c106cedac5aa6ce4d97dfd57708a95609c0454fd7f7597f740e45efcd238ad
font_01_sfnt_off0000dbe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE7 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off0000e74b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74B 10480 bytes
SHA-256: 31550d76031704205965e69df7bf368a2baee3f281d395b918e238f448fff1a9

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