Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced269def6a63a45…

MALICIOUS

PDF

62.9 KB Created: 2020-11-23 07:51:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7f3185bf36c7e9aa829d4f83bd5684f4 SHA-1: df933d0043f2fce930a0bb8b72bf3a140eb68a7b SHA-256: ced269def6a63a4522e95fe49e71c79716d74ebc246b2b57741ab624dbc5e9d9
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/123?utm_term=skills+worksheet+active+reading+answers PDF link annotation
    • https://pewoxunoxosizix.weebly.com/uploads/1/3/4/3/134318290/nisatow.pdfIn PDF document text
    • https://vakonawokedoze.weebly.com/uploads/1/3/4/5/134522954/4101679.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/vozowowatasolejinunivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c33542f-8ed4-4fef-834b-799e163bb99e/nobuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf04d9ff-54be-48fb-80e4-d7a6de82174b/18392634852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acbb810c-321e-4604-8836-e7d505bf3363/gezasobajusef.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/fomixiweko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f7f20bd-270f-4e3a-bc85-75e0060f03bc/70539830330.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/indian_banking_sector_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b7beba7-ec49-4561-9f54-0d773b390e9b/7448847680.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4863c99-aa8d-44b3-ad47-a97358dadcb9/garonowuwag.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/close_range_photogrammetry.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/58638004703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb472e4c-df19-4e2d-b4e9-a8a5f58c6afd/sunpak_digiflash_3000_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/seloximo.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_off0000b7de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7DE 5520 bytes
SHA-256: 14e931fc5383599a15531b9c37fc28e8b88469dcb207ed99c9aa4597a392be3f
font_01_sfnt_off0000cab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB6 10820 bytes
SHA-256: 7e1048cd83ef164aacfafbabbf3f87a8180aa4d0f7e1437a8935ebd033284420