Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d0e47515cd51d7…

MALICIOUS

PDF

91.0 KB Created: 2021-03-02 08:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 9eb674bebb5fba5a636d1cf904694dd5 SHA-1: 5eabd145ecb5fa13e8243547d444c9e7517e4885 SHA-256: e0d0e47515cd51d7a130b6f094a187e50b0adaabe46693e89f5f0485d054eb40
126 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many pointing to disposable domains and configured as a link farm, a common tactic for phishing or distributing further malware. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically identifies this pattern, suggesting the document's primary purpose is to redirect users to potentially harmful external sites.

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
  • 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://resalured.ru/strik?utm_term=my+family+and+other+animals+series+2016 PDF link annotation
    • http://fakixigulidol.mywebcommunity.org/59410702399.pdfIn PDF document text
    • http://naturaitalia.space/fs_i6x_firmwarekirx2.pdfIn PDF document text
    • http://tixshopclub.space/89024223302kfkgc.pdfIn PDF document text
    • http://brandframeb.com/63029686515iugs3.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/944125.pdfIn PDF document text
    • https://liwotagavujid.weebly.com/uploads/1/3/5/9/135961529/padesalolime-puvakenozaso.pdfIn PDF document text
    • http://dress-russia.ru/garmin_nvi_55_software_updaten1tlf.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/do_not_pray_for_easy_lives.pdfIn PDF document text
    • https://napokepuwaju.weebly.com/uploads/1/3/1/1/131164128/pejuzo-noresejipigune.pdfIn PDF document text
    • http://liketime.fun/gta_cheat_apk_freei5t1m.pdfIn PDF document text
    • https://wagalivo.weebly.com/uploads/1/3/0/8/130814328/6712133.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bugenerefajujus.atwebpages.com/tfs_tutorial_for_beginners_in_hindi.pdfIn PDF document text
    • http://giwofigu.epizy.com/10142210193.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_off00011d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D73 5732 bytes
SHA-256: 4c2e81ef3253d25a99d52ddadbf4c1df886fdf277e7c5d1e66d4667bc912e710
font_01_sfnt_off000130e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130E6 12904 bytes
SHA-256: e13570f9e55ef73be93e1dd5918deb909d7e0886faabc4506bf71f93e0245920

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