Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9f08dd8ea9c0c32…

MALICIOUS

PDF

75.3 KB Created: 2020-11-23 17:46:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4379456bd8eda85a520c5dc9f1110666 SHA-1: d322ae6bfee1b1238ff3e86cc279237390c1a47c SHA-256: b9f08dd8ea9c0c320a6d6488072db8ac6297d6d733c1dcff58a218287f87b203
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://trafffe.ru/123?utm_term=cheat+for+star+wars+game+2020+trailer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f905cabb3c2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7574c528-67f4-42b5-a1cf-b719329582da/tinder_pick_up_lines_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96bc8174-9de9-4f29-8e6b-b424f5bf5446/verazapigava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0522db1-1480-45a8-a9d3-37da3d16fe80/lojadifo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d9938af-a2b3-494d-8632-b4930c85ec7b/rod_stewart_discography_torrents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c48c49-3cfc-43a7-8df2-c2d59421a0ec/tewituvikanixot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a65ca66-76c5-4258-b07f-2a4f00f08272/24260040986.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d72ef2d-0925-4e57-9ca1-6d43ba688257/31124122109.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/dragon_city_guide_high_overlord.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/1275024664.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/i_c_z_n_full_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2eb3f854-e55c-48b8-8485-86f1e44a1ae9/zombie_addon_mcpe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/739e855e-8ffd-4e47-9ec8-d0587ac50653/navajo_medicine_man_hearing_remedy_reviews.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA47 5452 bytes
SHA-256: 793826b4c2592bddf1d8c5a5783298ffc6c3fd4f9018053b9bfd2ff1e6221ceb
font_01_sfnt_off0000fcb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB7 10532 bytes
SHA-256: 3405495b5c496e11f28f46782b5e1ec7ac64af33e49e1b5580bdf9fbb4228457