Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ac551df4bd26a2…

MALICIOUS

PDF

37.6 KB Created: 2021-04-03 14:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4256ceb7af760f440db46bb2b1a5481d SHA-1: 9fde0e1cb00134685a52d66a5a91764e5d4aedfd SHA-256: f3ac551df4bd26a2b744cb3318a0259eae247494e40e2d8d4b6aa7e9b3ae5d93
114 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6592

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 37 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://gimoguvi.ru/aws?utm_term=7+major+rivers+in+us PDF link annotation
    • https://cdn.sqhk.co/tinupolureg/Zrjjhiv/animal_sounds_alarm_tone_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489979/normal_605021aea4290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388825/normal_606811292a3a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389090/normal_6019c1786d86f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_6020fa6936570.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/ehbxIrH/halloween_decorations_cheap_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494429/normal_600526210d288.pdfIn PDF document text
    • https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_d20a79d46eb748079c20f69b69c9efd8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ede2575-194a-4d1e-aaf7-c4a0f22b143e/nawazuxukewogejefolakafak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60dcc22c-671e-4987-a21a-2ff77867e661/zibugivukixizobizagezas.pdfIn PDF document text

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