Malicious PDF — malware analysis report

Static analysis result for SHA-256 220f0988fef90603…

MALICIOUS

PDF

78.0 KB Created: 2021-03-03 13:21:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 99fea791bc8cf716d93c7c9f577abba1 SHA-1: 47cb8fc0aca1df5c78d6c68589d6773b435d39dc SHA-256: 220f0988fef90603c3cb046333cc17ddac7acd1271d162f967929a0e04c08833
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or credential harvesting 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://leonvi.ru/strik?utm_term=after+the+fact+the+art+of+historical+detection+sparknotes PDF link annotation
    • https://kodidenub.weebly.com/uploads/1/3/4/3/134328035/9c1950def3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455916/normal_60319b38658d0.pdfIn PDF document text
    • https://juwopivevonu.weebly.com/uploads/1/3/4/6/134682880/puxekegaw.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/tozorokuw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443342/normal_5fcbd47493f4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476282/normal_601880536d32c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450907/normal_603e6a8e55480.pdfIn PDF document text
    • http://jepenufi.getenjoyment.net/what_are_fixed_and_variable_costs_for_an_airline.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376621/normal_5fcf60f1397c8.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/garmin_64st_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482403/normal_600542675bdca.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/susufetubipufukaxupa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/widiku/6018297603.pdfIn PDF document text
    • http://vonupov.epizy.com/autodesk_inventor_mac_free.pdfIn PDF document text
    • http://menimilerawapo.rf.gd/70953287205.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/nubibojuzidokijolisobu.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/55302059052.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/xeliwexekami.pdfIn PDF document text
    • http://fewasav.rf.gd/rofizexem.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/bhojpuri_video_movie_song_hd.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_off0000ee93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE93 5296 bytes
SHA-256: a39ed500771135aca9e401681f7873be7caf15e3d5a0dc1d0bf90bcd94b9e561
font_01_sfnt_off00010095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10095 12572 bytes
SHA-256: fda53310df24867a946a106e91f24dc29099b07f990dd59594c267c02001154f