Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a67b44b8de674b…

MALICIOUS

PDF

65.8 KB Created: 2020-11-19 15:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 7186d677ccb7c06521abd21f4e1542ea SHA-1: b6468f98cf4f701a0f597a26ff7e1d843e58863c SHA-256: 40a67b44b8de674bc99d52c6401933526ea692a93e0ae3de6928af935be08f8c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to 'https://trafficel.ru/aws?utm_term=spider+man+gameloft+free', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'Spider man gameloft free'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=spider+man+gameloft+free PDF link annotation
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/6062709.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_5f8c40b1e6a0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_5fafb4ad0c3e9.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/a09e8195-c5e3-4062-b8e0-e7c88463bd54/32836447718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49fcd68a-738f-43fa-aa55-09ea1831bec0/art_a_brief_history_6th_edition_ebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b38724d7-9f65-494d-9011-65f37b58f8c8/mafafugop.pdfIn PDF document text
    • https://s3.amazonaws.com/dirijazi/norudasi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9de0eb97-6afd-4657-9eb2-ad837f222d3d/hero_s_journey_in_the_odyssey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50a6b488-5f15-42a7-8f5b-4338e8543e0b/xp_pen_artist_10_driver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94528811-0871-4568-ae6d-a7b62444a208/numufoxalarub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e1b83d-0c7f-4c66-b975-c2fb33a06774/tree_of_savior_classes_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/rekibedafowow/my_hat_it_has_three_corners_german.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_off0000c526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC526 5288 bytes
SHA-256: 02adbb57673b31eadb75ae1557ce749d75c09436686bdaae04565169d8654944
font_01_sfnt_off0000d70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD70B 10264 bytes
SHA-256: 1da35beda58bcba5def1ec3a34cb8ed16aba579e987a65aed8decb1ad678f31d