Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3186e683285548…

MALICIOUS

PDF

78.1 KB Created: 2021-05-17 13:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: b9d6d88a13aba5d8f795890360095d9c SHA-1: ec795fdff0dcbbf9e810b0ca83f94d2aed3a6c4c SHA-256: 0e3186e68328554825d0fa5e6ae2b3b901627938581608c42482e46de9741d61
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'seumenha.ru', which is highly suspicious. The document body, though heavily obfuscated, appears to contain metadata related to its creation, including the URL, suggesting an attempt to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=what%2527s+the+sad+song+on+tiktok PDF link annotation
    • http://stonersfranchise.com/79703082397l0x0w.pdfIn PDF document text
    • http://wisecredit.info/18001318352qp1v4.pdfIn PDF document text
    • http://closemaze.com/sorivkyosq.pdfIn PDF document text
    • http://kalavar.xyz/42954750516op8s.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/givigefum.pdfIn PDF document text
    • http://piriveva.scienceontheweb.net/tidorowobuxefoxexizigujuj.pdfIn PDF document text
    • http://wumiwuzigimo.mywebcommunity.org/69_things_i_wish_i_knew_before_getting_married.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/18216517647.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1f571a09-6495-4108-bd1a-9715deae29b5.filesusr.com/ugd/b0bf26_9302877d38384b2c8b5833311265f61e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/brother_hl2170w_toner_cartridge.pdfIn PDF document text
    • https://f8ba888e-8f71-4fde-8303-550399648f4e.filesusr.com/ugd/17ce20_8d1068e73e2848c1b5dbf8584f3fb709.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dorulusof/vimaf.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/nulevakoluvikiwatu.pdfIn PDF document text
    • http://duzoweserunojoj.epizy.com/boralisoxudamipizizuruno.pdfIn PDF document text
    • http://mawabubobiniz.rf.gd/graphing_quadratic_functions_word_problems_worksheet.pdfIn PDF document text
    • https://36622f5a-5a1b-41a5-aa98-965156e47ac2.filesusr.com/ugd/804ff6_3ebbac3d5d0347dca2d976593ba1e545.pdf?index=trueIn PDF document text
    • https://1d942ef5-affb-47d8-8f99-70a3d187b733.filesusr.com/ugd/3283b0_86ff8bc39d174dd883fc80986732c8c2.pdf?index=trueIn PDF document text
    • http://mawokale.myartsonline.com/tagajunuxexo.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/how_to_make_a_good_composition_in_photography.pdfIn PDF document text
    • https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_82a8cd89d3d1428d81e833c409ffbe55.pdf?index=trueIn PDF document text
    • https://502e425a-54a0-4661-a3e6-c6e116bdb13d.filesusr.com/ugd/10da26_940eef8c586d4925954c6ae009304d0e.pdf?index=trueIn PDF document text
    • http://suwugiborewetel.rf.gd/92459708438.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_off0000f1a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A6 5068 bytes
SHA-256: 0cd7e4e250348ebcbab457d860d44247613a20ce4c00084b38846cbfb93cb153
font_01_sfnt_off000102fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102FA 11288 bytes
SHA-256: 97c6ff95b4d5a01e782428ed081e2141ac5e4835251f89a0b46abecd77b5929f

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