Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2aa59dcbd1a29c…

MALICIOUS

PDF

82.1 KB Created: 2021-09-12 14:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 5b5026cbd5c012bb4aaeca2c9e3aa476 SHA-1: 7fbfd5f391468a43962ea5d9a8221259405b21b6 SHA-256: 9e2aa59dcbd1a29ca3a08c339effbc76e53f8550845e17aa8e4a47a12346465a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs pointing to potentially malicious domains, suggesting a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by indicating the PDF is a link farm on disposable hosting, designed to redirect users to various external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://smidgel.ru/uplcv?utm_term=watch+the+call+2020+korean+online+free PDF link annotation
    • https://powerliteaac.com/userfiles/file/18884540797.pdfIn PDF document text
    • https://samowar.me/userfiles/files/mesoxadijefatojoz.pdfIn PDF document text
    • https://fotofidelity.cz/userfiles/file/lobepo.pdfIn PDF document text
    • http://lycee-elm.info/userfiles/file/69440722487.pdfIn PDF document text
    • https://drosamahetta.com/userfiles/file/20526780667.pdfIn PDF document text
    • http://ondamarinarest.com/upload/files/15945276260.pdfIn PDF document text
    • https://ariaparvaz.com/basefile/ariaparvazcom/files/pawurikarudukenajazolop.pdfIn PDF document text
    • http://rklatex.com/userfiles/file/75314962348.pdfIn PDF document text
    • https://ottopianos.nl/files/noxozoxodob.pdfIn PDF document text
    • http://kameleonhastanc.hu/files/file/kaxidaxotuz.pdfIn PDF document text
    • https://dcoderesearch.com/uploads/43659343417.pdfIn PDF document text
    • http://clairerolo.com/userfiles/file/55337368652.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613328c4d37f0---zexumevilipej.pdfIn PDF document text
    • http://songhakbbq.com/uploads/files/93531191729.pdfIn PDF document text
    • http://noospc.ru/SITE/files/editor/file/fejuzepixi.pdfIn PDF document text
    • http://umffz21.ru/admin/ckfinder/userfiles/files/roduwiniluzitubufe.pdfIn PDF document text
    • http://alimentosldm.com/userfiles/file/99997226289.pdfIn PDF document text
    • http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16310844390084.pdfIn PDF document text
    • http://ugyvednok.hu/userfiles/file/wuwur.pdfIn PDF document text
    • http://baovephuongtroi.com/vietkiendo/upload/file/vogurodiziritetes.pdfIn PDF document text
    • http://reliancefla.com/admin/images/file/gukisexezali.pdfIn PDF document text
    • https://guijek.com/userfiles/file/79668782573.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB0D 18296 bytes
SHA-256: d424cdcad08909d60636ee13c0e84d531c6666a8d2f30637dc8e11d66e8e3f27
font_01_sfnt_off00010a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8E 10592 bytes
SHA-256: df67ba9611c77ad65a284d955c1932b4ba5da70cab553c46c99cca3c299ab50c
font_02_sfnt_off000122c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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