Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80a7f9e432f5fa1…

MALICIOUS

PDF

76.1 KB Created: 2021-03-16 07:33:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be81cf8b8f40ce53891a16359531e199 SHA-1: b97198a5180b8ab6b05b311119e7793cf65025f7 SHA-256: e80a7f9e432f5fa13332ab982783f88d42ba61d17505cb83006346f77f944f2e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, with a significant portion pointing to disposable or suspicious domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of exploitation techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://jumiwimov.ru/aws?utm_term=bushnell+tour+v2+battery
    • http://xapufogoximemin.22web.org/55645147640.pdf
    • https://cdn-cms.f-static.net/uploads/4450417/normal_602c769f29b89.pdf
    • http://miromawetibikew.mywebcommunity.org/kidoxo.pdf
    • http://pabixigenived.22web.org/devozumagimupodopo.pdf
    • https://static.s123-cdn-static.com/uploads/4479446/normal_5fcad6aad00ca.pdf
    • https://cdn-cms.f-static.net/uploads/4450636/normal_600eb04b8b870.pdf
    • http://xizugef.medianewsonline.com/31127624454.pdf
    • https://static.s123-cdn-static.com/uploads/4488135/normal_5fcf3ebb404c3.pdf
    • http://poxumanavofeboz.scienceontheweb.net/robin_hood_2018_cast_jamie_dornan.pdf
    • http://tasenatalagotur.22web.org/13588426877.pdf
    • https://cdn-cms.f-static.net/uploads/4393755/normal_600e893dd38e1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://miseparasunafit.rf.gd/togubelurawefitiviruwused.pdf
    • https://uploads.strikinglycdn.com/files/9ed592e5-bd01-4120-9751-d6a08a219b77/75567117369.pdf
    • http://bimivopi.epizy.com/carmilla_sheridan_le_fanu.pdf
    • https://uploads.strikinglycdn.com/files/70b9c115-d3c3-4227-9972-a188f0fde65b/gexinubatekedolevokubanid.pdf
    • http://jiboxinazelode.rf.gd/florida_dmv_written_exam_answers.pdf
    • http://josuxak.atwebpages.com/38798243399.pdf
    • https://s3.amazonaws.com/gelawiweza/milagre_de_transformar_agua_em_vinho.pdf
    • http://baverasoge.epizy.com/battlefield_1_code.pdf
    • http://naremijex.epizy.com/best_tool_music.pdf
    • https://uploads.strikinglycdn.com/files/551ef8aa-b9a2-4aa3-97eb-66641f74064e/que_es_una_fotografia_aerea_yahoo.pdf
    • http://feferabi.atwebpages.com/wopowab.pdf
    • https://s3.amazonaws.com/tigewibejageju/apc_5kva_ups_specifications.pdf
    • http://foxadawimuwewar.epizy.com/casina_plautus.pdf
    • http://badugumafuzalij.rf.gd/25476059503.pdf
    • https://s3.amazonaws.com/lovomijelun/90384956353.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecbb.bin
404da8d664dc0897ff93889eaf81e7e5bdd8553533bc82547302f092b6b33858		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECBB 5256 bytes
font_01_sfnt_off0000fea0.bin
51ed230ebd4449c68bdacbe3f4365f472e1689b717bc421d2b83382443c15629		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA0 10672 bytes

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