Malicious PDF — malware analysis report

Static analysis result for SHA-256 afbbdade641caab2…

MALICIOUS

PDF

50.6 KB Created: 2020-12-02 10:42:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d13ded14bb44bf5553a490306aaee06d SHA-1: 0a2888b0ab3eb103ba5552d0b2be5a538417996a SHA-256: afbbdade641caab23fe69634468304a835a7c6e782c193e6071c96791dfd0721
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a heuristic firing for a 'PDF_SEO_LINK_FARM', indicating a large number of external links. One of these links, 'https://trafffi.ru/aws?utm_term=ballet+beautiful+total+body+workout', is directly referenced. The presence of numerous external links suggests an attempt to direct users to potentially malicious or deceptive content, aligning with phishing or SEO spam tactics. The ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9726

Heuristics 4

  • 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
  • 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://trafffi.ru/aws?utm_term=ballet+beautiful+total+body+workout
    • https://cdn-cms.f-static.net/uploads/4390684/normal_5f9f73ce9d7a8.pdf
    • https://bujugerevik.weebly.com/uploads/1/3/4/6/134677448/392559.pdf
    • https://cdn-cms.f-static.net/uploads/4408582/normal_5fa30628e323b.pdf
    • https://uploads.strikinglycdn.com/files/b29df713-6ab8-43e4-a42a-c5f6f9539f47/instruction_manual_for_cuisinart_coffee_maker.pdf
    • https://uploads.strikinglycdn.com/files/186aea22-3559-44fa-a387-00f9272f6b65/vunabetuzurudepofo.pdf
    • https://static1.squarespace.com/static/5fc0e800a879396864085b93/t/5fc120be7acac6192ae92d5c/1606492354283/skyrim_grelka_wife.pdf
    • https://uploads.strikinglycdn.com/files/a06d23b5-31a3-4b5c-bef9-bf4e64d8275b/an_istqb_foundation_level_agile_tester_guide.pdf
    • https://static1.squarespace.com/static/5fbffb332bbd740658015355/t/5fc317de145a8629dc167db8/1606621152463/stray_dog_simulator_1.4_apk.pdf
    • https://static1.squarespace.com/static/5fc0e8305687f52b6b812c21/t/5fc3df96f81c9a2a0c18f8b3/1606672280836/87348299445.pdf
    • https://uploads.strikinglycdn.com/files/497616ab-dcd9-411d-b2a5-09a16606b5a9/gumi_megpoid_birthday.pdf
    • https://uploads.strikinglycdn.com/files/f8be0b74-08ea-4267-9848-88064768b691/dragon_s_dogma_dark_arisen_best_class.pdf
    • https://uploads.strikinglycdn.com/files/8d5ad45f-8fc4-4db5-ba2e-cb2abe107085/minecraft_pe_0.11_0_apk_free_download.pdf