Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d1156bf15de4a5…

MALICIOUS

PDF

79.2 KB Created: 2021-05-14 17:52:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2e41edca993e256e8248a25ac5bd80ef SHA-1: c4c80f9d593210e3b3bf03d3ffc4ae985ea4d34d SHA-256: c0d1156bf15de4a53f7b09f967867484d060a684bd9e9581132c98c476010dc6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users by presenting a seemingly innocuous title to mask a malicious link.

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://mezovuduw.ru/strik?utm_term=the+river+styx+part+2+recap PDF link annotation
    • https://xawiwewediwo.weebly.com/uploads/1/3/4/0/134017039/941953.pdfIn PDF document text
    • https://jivimukik.weebly.com/uploads/1/3/0/7/130775904/pesumix.pdfIn PDF document text
    • http://busivel.xyz/motorola_radio_holders_policeqlk2m.pdfIn PDF document text
    • http://runmasten.online/what_are_the_three_holy_books_of_judaism_christianity_and_islam6gzuh.pdfIn PDF document text
    • https://dekukosozo.weebly.com/uploads/1/3/1/0/131070054/nufuxosopefazupatug.pdfIn PDF document text
    • http://ujjjrrrrr.space/all_of_dance_dj_songngwwc.pdfIn PDF document text
    • http://onlyforyou.space/jetasitufituwukulojuxi5f83p.pdfIn PDF document text
    • http://meblik.su/doterra_essential_oils_guidexyw45.pdfIn PDF document text
    • https://kukuwusak.weebly.com/uploads/1/3/1/3/131379738/jejexumal.pdfIn PDF document text
    • https://zijunuriv.weebly.com/uploads/1/3/4/8/134892089/ruxezir_mazilavadiga_likixuwega_gulatodasikemup.pdfIn PDF document text
    • http://helpverifedbadges.com/10783738184vgkv0.pdfIn PDF document text
    • http://antileqphh.site/1098233806lhby7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wazuvit.rf.gd/kowuputoripe.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/71414306191.pdfIn PDF document text
    • http://xulezudo.epizy.com/crystal_report_13._0._20_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/criterion_channel_app_android.pdfIn PDF document text
    • http://golagesobowe.epizy.com/repubomagasizepefufo.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/coleman_ez_spa_error_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/app_lock_fingerprint_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/centerpoint_tag_6-20x50mm_scope.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_off0000f6fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6FB 5300 bytes
SHA-256: 30cc8d4c420d95c60606795d567d259fe703e091efe230cb05f91dc9aa44fc3b
font_01_sfnt_off0001090d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1090D 10824 bytes
SHA-256: 9cd3b46dd6daa6d677ab718f2598699808d678f780fb1313d08df25f808d53e8

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