Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a43de390955df9…

MALICIOUS

PDF

41.4 KB Created: 2021-01-11 08:30:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b2736203ab78bdb325e1f83547ebbb3 SHA-1: 2b2dc1bd4a292188543b1ffc774ebbd2e04df279 SHA-256: a1a43de390955df95778ba4f0c9069468afb67b4726cd6c0a42813b92213d730
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. The 'PDF_IMAGE_LURE' heuristic indicates it's an image-only document designed to trick users into clicking an embedded URI. The primary external URI, 'https://traffnew.ru/aws?utm_term=sunflower+colouring+sheets', is likely the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8311

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/aws?utm_term=sunflower+colouring+sheets
    • https://jinezosibe.weebly.com/uploads/1/3/4/4/134454760/48d40.pdf
    • https://cdn-cms.f-static.net/uploads/4375890/normal_5fa9cb657991f.pdf
    • https://cdn-cms.f-static.net/uploads/4405639/normal_5fabe6567a49b.pdf
    • https://static.s123-cdn-static.com/uploads/4443824/normal_5fcaafeb14d28.pdf
    • https://cdn-cms.f-static.net/uploads/4401723/normal_5f94a92eb36ea.pdf
    • https://cdn-cms.f-static.net/uploads/4449779/normal_5fbe1c3de6f68.pdf
    • https://cdn-cms.f-static.net/uploads/4389080/normal_5f8efcfbd5ed8.pdf
    • https://makumanufomogo.weebly.com/uploads/1/3/0/8/130874647/wenimu.pdf
    • https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/8804760.pdf
    • https://jetesobamu.weebly.com/uploads/1/3/5/3/135323438/pozamevopifi.pdf
    • https://s3.amazonaws.com/numegubowalonan/astrology_answers_libra_daily_horoscope.pdf
    • https://s3.amazonaws.com/falufusu/xarigoxejanawopadape.pdf
    • https://s3.amazonaws.com/jolufozo/black_friday_laptop_deals_reddit.pdf
    • https://s3.amazonaws.com/ladojenefe/75309414690.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.