Malicious PDF — malware analysis report

Static analysis result for SHA-256 6032eee68aed7dc2…

MALICIOUS

PDF

61.8 KB Created: 2020-12-17 14:55:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: def0ced60f4e561887577d189f4efb70 SHA-1: 19d6accf786c2a5fc82b2f04157c829fcd5f8062 SHA-256: 6032eee68aed7dc2989d7ff6d9e7d6b0cd9ac2a506114adefe88eb202ac7936c
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'Alton brown hot fudge' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafffe.ru/123?utm_term=alton+brown+hot+fudge PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412174/normal_5fbc8a5653833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495696/normal_5fbcca43b71aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410965/normal_5f93b7f11240e.pdfIn PDF document text
    • https://tovegema.weebly.com/uploads/1/3/4/5/134505564/tovoxarelafu.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/6755053.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/365f584c-39da-46e4-b28a-943f4ce5bd6e/vex_3_kizi.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/52074355154.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/zipadeva.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/cdf_and_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/occupational_safety_and_health_act_and_regulations.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/ielts_speaking_part_2_question_and_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/mofemedewip.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/rowapifonisetefatunojuf.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_off0000b771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB771 5004 bytes
SHA-256: b030593a38fe694a3ff503acfed75a09f1dd7b3eaaf41b1876bdcdbeca0a5153
font_01_sfnt_off0000c880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC880 10048 bytes
SHA-256: 46b999c12f96469138fbf1502e6684993fff6020d26e9d8a106d102f456b2d4e