Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ea51af98c2da89…

MALICIOUS

PDF

64.3 KB Created: 2020-12-14 08:24:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: dda1b35b19c7de92897625eeb3611edb SHA-1: 9cdaf4aafb47983bf37492cb1b5deaa93003952c SHA-256: f2ea51af98c2da89ac57a1aea92f3413063a9c36578f2d955f4c7e4b247d0280
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://traffine.ru/123?utm_term=area+manager+amazon+salary PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378393/normal_5f8b2da21344e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478933/normal_5fc24adf883ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389801/normal_5f95b21de7f1d.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/9a081e28-c1ca-47ca-965f-7e5e545a0bf5/digital_newton_meter_torque_wrench.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1641b6b97992eb55f7d52/t/5fcbadd9b6b7366152fe408e/1607183843416/zovufewuviganugutepaguxov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/037a7166-d53b-49e8-8645-b5682bde13ac/medicate_song_gabbie_hanna_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/83633962775.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57d09abaecd33184140e3/t/5fcad2a4393ce4735626ae23/1607127716986/vr_360_horror_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad47ff02-7125-4b53-8380-ea7f051c34a9/roburojisikabepapibumi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89504c82-b3b7-4419-a79b-b8bab2cab4b5/labereludukadefifo.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/15096610148.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/capitec_loan_online_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/blended_learning_models.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/alicia_keys_blended_family_mp4.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_off0000bb71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB71 5148 bytes
SHA-256: 9ca13d93b599c678c79e6f5e8796ffd48f94ad99dda710007c3f090ad8387715
font_01_sfnt_off0000ccea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCEA 12552 bytes
SHA-256: 79ed8b478fd0efffa0182cce5d69f65d196c61e31345ef496bb0a264e98ad520

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