Malicious PDF — malware analysis report

Static analysis result for SHA-256 805861f462e50c31…

MALICIOUS

PDF

73.7 KB Created: 2021-02-15 12:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 276e6b6c8ad99d4e4518a128aa8cd896 SHA-1: 0aacb7452d11a4379dc0c014f75c47ce87f0680c SHA-256: 805861f462e50c316c3e27e34dbd42beb362c12977404443c9de8488efc83de0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'Black and Decker coffee maker programmable timer instructions', suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/strik?utm_term=black+and+decker+coffee+maker+programmable+timer+instructions PDF link annotation
    • https://gepemizuwawufak.weebly.com/uploads/1/3/4/3/134335313/xifatovaledege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451220/normal_600a529cf07ae.pdfIn PDF document text
    • http://sanasojan.22web.org/ableton_live_9_free_full_version.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391024/normal_60028a6f1fe5d.pdfIn PDF document text
    • https://notaxivarem.weebly.com/uploads/1/3/4/6/134633458/2168912.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412396/normal_5fca121c9950a.pdfIn PDF document text
    • http://muritolovaj.iblogger.org/statista_e_commerce_report_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424630/normal_5ff83405143ed.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/3548455.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dinexun.epizy.com/kazumoxijutuwikev.pdfIn PDF document text
    • http://weloridotam.epizy.com/aaj_mere_piya_ghar_aavenge_free.pdfIn PDF document text
    • http://durevitulo.rf.gd/kptcl_recruitment_2019_notification.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/bahubali_movie_tamil_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/react_native_cross_platform_ui.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/83533612763.pdfIn PDF document text
    • http://dulubuli.rf.gd/28169982497.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/jemojedigodun.pdfIn PDF document text
    • http://mexowotevofo.rf.gd/bilawumugubem.pdfIn PDF document text
    • http://pogojufizos.rf.gd/85900244789.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_off0000e08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08B 5728 bytes
SHA-256: 865e414afedb48066dd2fa4f7ed67177451587158fca1e3cd817480976473b8e
font_01_sfnt_off0000f3f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F1 10864 bytes
SHA-256: dc8297e6afeb3708ac6756d81756c105f2823dc2d45d7299a3bb522324d33141

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