Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19075a14fe46c38…

MALICIOUS

PDF

57.8 KB Created: 2020-12-10 09:48:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: de08eed634c5b810190575f4993ddc75 SHA-1: 92df182e466a69ec77406cd3b777ac5c78b05180 SHA-256: d19075a14fe46c38421c39dea6ffebc589e37ba891c083212f96b165e9566547
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 0.9996

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://trafftec.ru/strik?utm_term=cubic+zirconia+halo+engagement+rings PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413117/normal_5f987b5c43cbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404310/normal_5f9a5be40e0b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368245/normal_5fa1ec0d92ff0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fc985908fae8.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/28c1be46-8e45-4643-9f8f-8223b4da0be3/fbla_entrepreneurship_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/fefoxenidupani.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/zamidesufojul.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/vizio_e601i-a3_remote_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7936d6fb-acc3-46a7-99e6-17c5f9d240ec/23339630436.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/demawamuzewesojaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4da1c2bbd7406581fdd5e/t/5fd160b89a9e5443ac6ca705/1607557305556/how_to_make_origami_dragon_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/wepejogegotewadorir.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_off0000aa3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA3C 5308 bytes
SHA-256: daba0174c2531715a813e90553c74274e8aa96fbed369f77b561b27f1f5818e8
font_01_sfnt_off0000bc1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1A 8872 bytes
SHA-256: 1226c1aaa6138eba05727849747b7b0c937864598cfde1a3cba6264ce20969ba