Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f9720978ea8d1b8…

MALICIOUS

PDF

79.6 KB Created: 2021-02-19 06:37:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 08872ef1b8313d8630b5a4a5d01b3c4e SHA-1: e752d9bdb2dfd1897f46758925d2e279763edfb0 SHA-256: 3f9720978ea8d1b806af97a490a1e7d8c74dc0746a390b2f805949ee5efbb51c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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, indicating a phishing attempt. It contains an external URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'craftsman table saw parts list'.

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://druttle.ru/strik?utm_term=craftsman+table+saw+parts+list PDF link annotation
    • https://cdn.sqhk.co/janawezexoj/ifjeieG/brave_frontier_heroes_across_time.pdfIn PDF document text
    • http://damita.fun/xojarokekavuvenurivodamiziy4w6.pdfIn PDF document text
    • http://mandarin-fruit.space/15084444611ttcaa.pdfIn PDF document text
    • https://cdn.sqhk.co/dutedape/sDuhjST/gevemoferatenezege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426543/normal_5fdbb821727a0.pdfIn PDF document text
    • http://hangookoil.ru/sovazuvitamajinurack219.pdfIn PDF document text
    • http://blancer.xyz/sexovijizepinosugezrjq0p.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/bzhdYRQ/61417626162.pdfIn PDF document text
    • http://swast-group.website/494518507192aaf1.pdfIn PDF document text
    • http://fumigatoff.online/my_dog_keeps_hacking_like_he_has_a_h1delx.pdfIn PDF document text
    • http://dubapevokitux.22web.org/vezifuwapozerol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jewizopukuni/72573948172.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/pending_salary_request_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/81388862982.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/financial_accounting_2_by_millan_answer_key.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4F 4980 bytes
SHA-256: 8e98c04a0a96941db18eb23f3800ba871fc6df41231a4113996728c1ad3b861b
font_01_sfnt_off0000fc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC29 11080 bytes
SHA-256: 2d849e9376c68c5ca4b13303698730d4d1d1f26af7858f8fe277837cec595f59
font_02_sfnt_off000121d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121D5 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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