Malicious PDF — malware analysis report

Static analysis result for SHA-256 501b85bde38d46b6…

MALICIOUS

PDF

70.3 KB Created: 2020-12-04 05:13:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 0115537819abd1cc28a577d4c6d181e9 SHA-1: 1c84a6708fb6fc70ddb6384f9d6583a873fa4f64 SHA-256: 501b85bde38d46b60e9d5dbed96be2fcc55994ff50cd5480f5e9dd3fbb9d8add
96 Risk Score

Malware Insights

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

The PDF 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, classifying it as a phishing trojan. The presence of embedded URLs and the overall structure suggest it's designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/123?utm_term=fast+and+furious+legacy+apk PDF link annotation
    • https://xilemizafijoso.weebly.com/uploads/1/3/4/4/134483217/ludunaramakigib.pdfIn PDF document text
    • https://nepejudakolop.weebly.com/uploads/1/3/4/8/134876169/571cf1550a3ba.pdfIn PDF document text
    • https://xifepifedezuz.weebly.com/uploads/1/3/4/4/134495844/rejejabojolazorep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416935/normal_5fb610b3a3093.pdfIn PDF document text
    • https://bozobamawokoruv.weebly.com/uploads/1/3/4/3/134350924/9bf73ec94b93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422638/normal_5fa3c7797b3e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5fa2416293a11.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://uploads.strikinglycdn.com/files/4765499d-8640-43e4-8080-734431c7ceeb/dotorepijorisilisetemun.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/casio_g_shock_mtg_900_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/78328544207.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/black_lab_great_dane_mix_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c52915b2-e504-420c-9620-61b69cc44a56/lejegananugiven.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_off0000c71e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC71E 5328 bytes
SHA-256: b4a7c80f7e7476e3a2ba91c1779710763afd384ed0013641ba1acce86c2ac208
font_01_sfnt_off0000d955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD955 10920 bytes
SHA-256: 06aa7ee635a346be79c98386a74e2f3670742def47de62ac851ac98e710fef03
font_02_sfnt_off0000febc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBC 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3