Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebd4a411cb58ed5…

MALICIOUS

PDF

76.8 KB Created: 2020-12-24 10:25:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 07d5daeab2c27a0961a07743c789fbc9 SHA-1: bbe150c2707268f6811cfbca3475af8f3ef27852 SHA-256: 2ebd4a411cb58ed5616cdf5cd1bd83d04c20673ce33d4ec7523cd46abada44e4
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafffe.ru', which is likely a malicious domain used for phishing or malware delivery. The document body, though heavily obfuscated, contains text related to a game, suggesting a lure to entice users to click the malicious link.

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://trafffe.ru/strik?utm_term=drift+car+extreme+simulator+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377098/normal_5f9512f23b43b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483335/normal_5fcfb042d9ed4.pdfIn PDF document text
    • https://cdn.sqhk.co/bakavaxa/jfChhjb/football_heroes_pro_2017_hack.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423166/normal_5fc4abee3a7ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374362/normal_5f926217e6312.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448343/normal_5fa23e79448a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470029/normal_5fb8817b78510.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/jofunoje/the_hate_you_give_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b024f5d-6ee9-48d2-810b-cf47d207efc7/ligesapewerilan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/809ae008-b437-4875-a552-e32dbc03c8e5/67538073514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24b59605-e23c-411a-934f-3307bfa99e11/xabupuwozanituboxixaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30ba3683-5a0f-4f1c-9fdd-5d902b37f5ef/28384100548.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd12cd5f-cb09-4c31-995a-ba17d4e46246/28947235906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12e23f2b-c5f5-4f03-81ab-1c0bbd1bea43/import_software_uk.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_off0000ef0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0E 5096 bytes
SHA-256: 5f2f3d6690e551746b1f8873bc9284e6921e451dd69d0373f23bb0c645c7b8c0
font_01_sfnt_off00010056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10056 11120 bytes
SHA-256: 8774dcc32817f7a81b928a14db7fd35060a055a4063d697b3eb661682f6b8529