Malicious PDF — malware analysis report

Static analysis result for SHA-256 22483f6dc96915c1…

MALICIOUS

PDF

64.7 KB Created: 2020-11-10 07:27:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1f93c99ec449ed2a0bedabe90973e0ad SHA-1: 265a126534b9181c5abc24cf52df0edc11609b06 SHA-256: 22483f6dc96915c15030554d63fd3c0be7451ba39d1a878b87ca62bcd4570b20
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 0.9998

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://traffnew.ru/strik?keyword=rock+hill+orchard+hours PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/90d5fbf4-a2af-4aed-b3c5-88902609b986/burns_high_school_shelby_nc.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/jitesimiwozozawutusob.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/1084327450.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/big_ideas_math_geometry_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9f33546-ef49-45f1-83bd-3f109df8b5cd/47086032875.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a0bbd90-413d-46ad-9b9e-ade1f2e3f6a2/31141258943.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/79142077196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/170f695d-fdbe-4f67-8e8c-23c4a7cd8877/7097588499.pdfIn PDF document text
    • https://s3.amazonaws.com/wepeliniru/emathinstruction_algebra_2_unit_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6cfb8e8-70e3-4b40-b862-cd4858d00af1/96247648909.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/filexefugatit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75a0e32c-3352-44ef-8b75-850f63c04073/leyes_de_la_optica_geometrica.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/51898637551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12bc9235-3f62-404c-a8e7-ef6b9153f58f/jafadelenakujorozejo.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/71654427913.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_off0000c05a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05A 5100 bytes
SHA-256: c935d9ff4c94737b254b3e46b48a7e263cdf816070479992379d52fe4b4675e7
font_01_sfnt_off0000d1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AC 10924 bytes
SHA-256: 73496470c8ec891bff7c3d5dad89be01f63992768d1ff6a0d3889f9915ab4f3a