Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ab97af0ad52e85…

MALICIOUS

PDF

67.9 KB Created: 2020-11-11 09:20:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: edde74fa76736bfe69242de3144e0232 SHA-1: dcfb1654575072bb6c7d218eecc8d5be6a2faf09 SHA-256: 58ab97af0ad52e85000560c911f8495528a83aca669dac2406d7475fef44c198
96 Risk Score

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://traffine.ru/strik?keyword=super+bowl+2020+25+squares+board PDF link annotation
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/tonufederodewa-gexaravuwoxaw-xemonofufubi.pdfIn PDF document text
    • https://tuxupifogufo.weebly.com/uploads/1/3/4/5/134594750/9fea94.pdfIn PDF document text
    • https://pibekexamu.weebly.com/uploads/1/3/4/4/134401786/8570570.pdfIn PDF document text
    • https://reredutubonuki.weebly.com/uploads/1/3/0/7/130775370/pavasaxug_vovixiko_rusomagakimabu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368762/normal_5f9065dd6242b.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/vedexajawo/58654866844.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/fasalajobodin.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/starting_over_again_full_movie_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/ipad_pro_12.9_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/memphis_michigan_newspaper.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/define_veto_ap_gov.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/ginujedaxatiduvevanakad.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_off0000c7c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C3 5812 bytes
SHA-256: fb77f10a36e8cbf3b6005fe09d1bddb454df7a2bb744539ca36b8082b91c1f59
font_01_sfnt_off0000dba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA1 10976 bytes
SHA-256: e06f9f637824246a8fd76787d764e7b8e00e7ec983dbb1b37dbaa6dd8d927ec8