Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d8d7b44fb7704ed…

MALICIOUS

PDF

50.6 KB Created: 2020-11-23 01:20:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd1a566ecbf874d6ef1fd8ad7652e155 SHA-1: c8afaf45b03e58ab5957307bf59e71fd4de3170b SHA-256: 8d8d7b44fb7704eda120ade40237c6498cefcd233e24719ed6c5181e57ae15b5
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, indicating a phishing or malware distribution attempt. It functions as an image-only lure, typical of phishing campaigns, directing users to external URLs. The presence of numerous external links, including a link farm on disposable hosting, suggests an effort to obscure the ultimate destination or to distribute various payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6098

Heuristics 6

  • 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 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=iron+man+coloring+sheets+pdf
    • https://buvitefano.weebly.com/uploads/1/3/4/1/134131500/3947490.pdf
    • https://zixotojene.weebly.com/uploads/1/3/4/3/134315054/2726522.pdf
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/e45c4f0f5.pdf
    • https://kufojomarolov.weebly.com/uploads/1/3/4/4/134401526/musilududokizufami.pdf
    • https://wijisozafepu.weebly.com/uploads/1/3/4/3/134356417/vabujazalizotojis.pdf
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5f87ca300bc3c.pdf
    • https://cdn-cms.f-static.net/uploads/4462379/normal_5fa5962c02f13.pdf
    • https://jelafabonopavu.weebly.com/uploads/1/3/4/4/134443296/xixavola_dogiwugidexod.pdf
    • https://cdn-cms.f-static.net/uploads/4445868/normal_5fa7f73b76987.pdf
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/fibipakarikobeg_mozek_guxif_voledesuv.pdf

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