Malicious PDF — malware analysis report

Static analysis result for SHA-256 61bbdfcd5cb44b88…

MALICIOUS

PDF

68.4 KB Created: 2020-11-21 11:20:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2441ff09140a7330a7a204d04ae4eb2b SHA-1: 1127d184adae710c007017d230dc4a62b1eaac5b SHA-256: 61bbdfcd5cb44b88ddcb0085c118c8b658c344fe0e3d9d25ed90646be4c920f8
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://traffnew.ru/123?utm_term=proscan+plt7223g+manual PDF link annotation
    • https://tiposowa.weebly.com/uploads/1/3/1/1/131164246/832db.pdfIn PDF document text
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/talivosevun.pdfIn PDF document text
    • https://vebifejelib.weebly.com/uploads/1/3/0/7/130775119/44dbb.pdfIn PDF document text
    • https://dudosixe.weebly.com/uploads/1/3/4/3/134323580/xuvejabozif_vowinobeloki_nubetesawije.pdfIn PDF document text
    • https://rijejoxutozi.weebly.com/uploads/1/3/4/5/134599637/d7d6747.pdfIn PDF document text
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/60f9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369764/normal_5f8a2de3a6d68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f871097c441a.pdfIn PDF document text
    • https://babunugigexi.weebly.com/uploads/1/3/4/5/134582988/1690302.pdfIn PDF document text
    • https://zolegezuboz.weebly.com/uploads/1/3/4/4/134462972/liredokug-jonowefubunabo.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/wewuxuviwar/electronics_engineering_download.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/7407832164.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/pharrell_tattoo_removal_before_and_after.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/remove_outdated_content_page_in_google.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/42210504599.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/54461508919.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/pimodunizulibukudis.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_off0000cd5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD5E 5628 bytes
SHA-256: f280cce6fd8f02246d14533ddcf94a5e01667e020fb14678987e91e8465e3d43
font_01_sfnt_off0000e083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE083 10552 bytes
SHA-256: deb48afa7ea4a0711e21c83848a523e15795782ac0e48242849cd5cfa598ae4d