Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9a63ae124bdb1a…

MALICIOUS

PDF

139.7 KB Created: 2023-10-18 13:08:25 -01:00 Authoring application: ReportLab PDF Library - www.reportlab.com
MD5: 9ae51b450e46a8b09343348398e553e8 SHA-1: 61280d5607d354fef12e3211171a7c02e3456267 SHA-256: 6e9a63ae124bdb1a0329932bdb55c1d95e5c2e0020e1627cf4c5f2342db8e1d4
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious due to its structure, which mimics a screenshot lure to entice users into clicking a link. The embedded URL, https://skyalarabia.com/utsn/?wxXOMokSqbTAoLjYCcKMJmgvsLcociGBMQAvCRCMOvFRxuHozpayBlRFWjHIbgTwCFETgsJoEqidBLdL, is algorithmically generated and leads to a suspicious domain, strongly suggesting it is used to deliver a secondary payload or redirect to a phishing site. No scripts were extracted, but the PDF's design and the high-confidence heuristic firings indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9388

Heuristics 4

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 139 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://skyalarabia.com/utsn/?wxXOMokSqbTAoLjYCcKMJmgvsLcociGBMQAvCRCMOvFRxuHozpayBlRFWjHIbgTwCFETgsJoEqidBLdL
    • http://www.reportlab.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off00000183.bin
f9345f011ef63d1fef6ee722d323aedeb2ac4349c53df65bba513e4ee7c92a6a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x183 1454112 bytes

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