Malicious PDF — malware analysis report

Static analysis result for SHA-256 c982b0ca07f43829…

MALICIOUS

PDF

75.1 KB Created: 2021-04-04 21:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 12ab731b6d4fd8cbb1db6831a9fff28c SHA-1: 1d8e0b76a0b7895a9028174d1fc0a2270ec6eb31 SHA-256: c982b0ca07f4382965fc2c63ba7c03c52607609337f21937ac856508f2e0cc4d
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of external URIs and a link farm heuristic suggests a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains keywords related to job applications, aligning with a common social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seumenha.ru/wix?keyword=cover+letter+for+part+time+job+template PDF link annotation
    • http://rapegutuxipik.22web.org/xipuxaxozapejawikafeje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490542/normal_6023f2cfa02ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464311/normal_603a70a820d54.pdfIn PDF document text
    • http://budonap.iblogger.org/2013_ram_1500_bed_weight_capacity.pdfIn PDF document text
    • http://tenipimutav.mywebcommunity.org/difference_between_aerobic_and_anaerobic_exercise.pdfIn PDF document text
    • http://frukt.space/958505179263bb6q.pdfIn PDF document text
    • http://khareedforosh.com/lojibamubalaxege9cuxy.pdfIn PDF document text
    • http://shopeuro.pro/9541388354882kvx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://julivaradisakit.rf.gd/boston_matrix_template_word.pdfIn PDF document text
    • http://nakixaxev.myartsonline.com/lomobupajelesifuzozij.pdfIn PDF document text
    • http://pakoxerevigere.epizy.com/seven_spiritual_laws_of_success_free.pdfIn PDF document text
    • http://zusotofamagukam.rf.gd/how_to_setup_ipolis_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/833eea49-81a5-47cf-99ca-4d9d98775aaa/what_are_the_steps_of_lean_six_sigma.pdfIn PDF document text
    • http://jubegovasoranaz.rf.gd/16431377171.pdfIn PDF document text
    • http://julonisajox.rf.gd/vobojexaguzuni.pdfIn PDF document text
    • http://xigipir.epizy.com/kazoweku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4522afe7-9966-4c99-b7cf-97076df8c51b/fanunepudikedupukedat.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_off0000e7e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E9 5052 bytes
SHA-256: 8e6d742853591c920b757047e1d00e309571ddc453ceb1787d9aaff9d94fb71a
font_01_sfnt_off0000f904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF904 10732 bytes
SHA-256: 89f54a7b87d1739f6c2941b9d15977658ac54c64bc094f0e7157ab5813fc6600

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