Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe48ece37612660…

MALICIOUS

PDF

69.4 KB Created: 2020-12-17 19:52:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 86fc133f0274ea643141a47b43eef6a4 SHA-1: 205588d958fe8a39bfcd1e0d88b6d798e75e7e50 SHA-256: abe48ece3761266092f8f32a231e798aa74db3249cc1e5e5f7965ca78abee307
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that promises a 'hack apk', suggesting a social engineering lure to download malware. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a phishing attempt to deliver a malicious payload.

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://trafficel.ru/strik?utm_term=blitz+brigade+hack+apk+2019 PDF link annotation
    • https://xakukanezo.weebly.com/uploads/1/3/4/8/134898234/xalupapuzixu.pdfIn PDF document text
    • https://rurefidutemajob.weebly.com/uploads/1/3/4/3/134333690/980813.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489054/normal_5fb81b75ec06c.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/belapawerezuju/ielts_essential_guide_speaking_test_1.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/small_to_ppt_converter.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3a28aaffbf90a66fb884b/t/5fc524df1972c46e3c42b086/1606755551597/city_of_arcadia_florida_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/nodabezolobarin.pdfIn PDF document text
    • https://s3.amazonaws.com/rotafasaniz/dominos_cheese_pizza_ingredients.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb038eb4-51f2-4312-9c81-1d9a59b9b753/weather_in_brookings_oregon_in_december.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/celebrity_cruises_drink_package.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/30270659768.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1c049c6d9645836281f45/t/5fc367c79d79364840f941ae/1606641608014/fewimudapiduwuzilut.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/39568137319.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_off0000d214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD214 5940 bytes
SHA-256: f0740f19f08fb7ac3df3744e65dc8d5e2871ebec9044d4b89ca4337678013344
font_01_sfnt_off0000e651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE651 10248 bytes
SHA-256: 1c70e58cfcd20a40139b7f56c11bba12aca423c6f7fc44c98c3b250e32c718c3