Malicious PDF — malware analysis report

Static analysis result for SHA-256 b81e2bb0aaf73049…

MALICIOUS

PDF

75.4 KB Created: 2021-05-18 22:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cfd6534126d17d23b547a1712b2444a0 SHA-1: 8164ab070383a1171c8d1d9685e9e9f9e9b5ed40 SHA-256: b81e2bb0aaf73049e17d8eb4330c1e043a8375215cd5ae9ea863e21e334f8c46
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://ponafet.ru/strik?utm_term=what+are+the+different+nespresso+capsules+size PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4464083/normal_5ff3dacd6a6ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415739/normal_5fe1fb8445674.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421062/normal_60438136d904f.pdfIn PDF document text
    • https://bununijadepijag.weebly.com/uploads/1/3/5/2/135298825/liwawexebopire-mubewodifov-sizufelaxuzuja-zudibopiv.pdfIn PDF document text
    • https://tumirovuwepilu.weebly.com/uploads/1/3/4/6/134603677/zofawekagus.pdfIn PDF document text
    • https://nibuwoxemunovox.weebly.com/uploads/1/3/4/7/134714338/vixonisepiwig_jumononokorog_nebip.pdfIn PDF document text
    • https://xudemogarutigi.weebly.com/uploads/1/3/4/7/134733212/5204204.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusewijoje.epizy.com/durostar_ds4000s_portable_generator._best_value_portable_generator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9fc5e98-aab6-4699-8b4b-c7dd7a9fafcb/obs_mic_settings_blue_yeti.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/nobutilepivasitiwafigixi.pdfIn PDF document text
    • http://pesafitibum.epizy.com/crab_rave_saxophone_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/56046064979.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/mr_robot_characters_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c369be74-7ca5-4175-a599-1a97aacfa53d/wujijiguwose.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/96428277869.pdfIn PDF document text
    • http://kipawewori.epizy.com/dependency_injection_design_patterns_using_spring_and_guice.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_off0000e76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76D 5308 bytes
SHA-256: 34d572d4181c731d74e5c66c6492afbd963d7815c2756350ace2237ab90967e1
font_01_sfnt_off0000f98b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98B 11216 bytes
SHA-256: d1277da36cfa43c844383cef0615c585c2a162cb7bd116b0c3d514141725d965

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