Malicious PDF — malware analysis report

Static analysis result for SHA-256 096a055ec3528104…

MALICIOUS

PDF

41.4 KB Created: 2021-04-04 20:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b92653f909a5d72edfad3c29e5cf1853 SHA-1: f57434e833c02443fd8e0241dc5477e8c82a00ab SHA-256: 096a055ec35281045f24cb45526a3f9265bab2219efa0354f29af658de3cf807
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and 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 0.8189

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://maypoin.ru/aws?utm_term=molarity+practice+problems+answers PDF link annotation
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    • https://bidopafogusiw.weebly.com/uploads/1/3/1/0/131070115/xazovitekix-nuzon-masexogifu-sevuvi.pdfIn PDF document text
    • https://guxenebulofoto.weebly.com/uploads/1/3/2/8/132814975/zewodosetixudul-pirowudumob.pdfIn PDF document text
    • https://votetofovuwov.weebly.com/uploads/1/3/4/9/134901863/gozajuwaxolupiv.pdfIn PDF document text
    • http://pegejoruvufiron.sportsontheweb.net/37065581964.pdfIn PDF document text
    • http://kutepiguzusudax.epizy.com/venukuroguw.pdfIn PDF document text
    • https://efa91360-7c21-416c-9d60-3189e0beb381.filesusr.com/ugd/42ffc7_b701b3649d564f549dd955014f197cd9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kuboki/military_alphabet_code_meanings.pdfIn PDF document text
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    • https://uploads.strikinglycdn.com/files/681e4890-b174-4ebc-a4ab-3082ab540499/focusrite_saffire_pro_40_adat_setup.pdfIn PDF document text
    • https://36d3fe4d-ce77-4ecd-ae21-04b42370c250.filesusr.com/ugd/871c54_f3b52be30ad74f7d80538c4bef5b708a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sasufufa/primer_androide_de_dragon_ball.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/jegak.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/19540536000.pdfIn PDF document text
    • https://d2faa26e-66ca-44cd-8f84-883624a71019.filesusr.com/ugd/dbbfd0_9c520e8ee7e9413ea8e733b986ea9379.pdf?index=trueIn PDF document text
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_fe613173fc254f0e840e0e6ca4aea060.pdf?index=trueIn PDF document text
    • http://varidigodi.epizy.com/find_b_form_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17cb4331-8459-4165-857a-102ecaff098d/what_is_the_significance_of_the_great_society_programs.pdfIn PDF document text