Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaaead9b6faa572d…

MALICIOUS

PDF

71.1 KB Created: 2020-11-11 08:08:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: da6fd575ec75ff11bea926f3171cc746 SHA-1: dab98e22a68eb1c5d8303b376a19f0ea2e729772 SHA-256: aaaead9b6faa572d225691a7b52e018f01a9cb2b754f256450fceb07088f5523
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafffi.ru/strik?keyword=kroger+application+online PDF link annotation
    • https://wisizexabebaj.weebly.com/uploads/1/3/4/4/134461468/xonej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f96a3fa63aef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367937/normal_5f889e250f7f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480412/normal_5fab288e054a8.pdfIn PDF document text
    • https://muwidewosavuli.weebly.com/uploads/1/3/4/4/134435377/2617002.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/1282931f-b4b8-4ffd-8273-906c2cfc110e/xizilolalojavewarer.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/simple_vehicle_bill_of_sale_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef025866-5c3f-40e3-a392-c77b7a168fa3/skyrim_mods_argonian_armor.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/66815498653.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/pure_primal_keto_dietary_supplement.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/63037033881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51e66b96-6dc6-4294-a471-5fda3ae48538/74554344181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/782f8810-a96b-47b8-8cb0-49ee85863849/suzolinozafe.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/kupax.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_off0000dbb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB4 4892 bytes
SHA-256: 359ab0b5276868d7a0bc192adacbcb394d6e18d9424ca21e60c276b7e0710f84
font_01_sfnt_off0000ec77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC77 10384 bytes
SHA-256: 23a5e0cb3f7934dc91534024e2a02c3ce5ee9b0f0a3b741118e3ee4b6d00643e