Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b7bf7ce72a7fb1a…

MALICIOUS

PDF

67.5 KB Created: 2020-11-18 04:20:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7ee9975eda3e7d4283d77f07f7fbcd6a SHA-1: 9bd10ed11d4615081ac0997fd83a8e126e94d55e SHA-256: 1b7bf7ce72a7fb1af549e8716e081dec743e3cc438ddc8fbc1790675e23f3046
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://traffset.ru/strik?utm_term=filmywap+bollywood+movies+in+hindi+2016 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414173/normal_5fa4c8c838aae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f870851d4cda.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/natozasajerizow-kidatub-fisemanumutid-rajebodelovisaj.pdfIn PDF document text
    • https://zulewawasukuxu.weebly.com/uploads/1/3/4/5/134581955/nasaduvapegewu.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/4e00c193-0f99-47c1-912f-56157c20e314/mawazupodifunekezikirelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e12f2b8-7992-4c9b-9477-413e7f0a876a/nojupewojumanusiruba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a4e98d7-ec93-4a7d-9336-d3b71a7b1d55/unc_basketball_forum_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/l_appareil_digestif.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/lord_and_taylor_shoes_flats.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/elder_scrolls_blades_town_level_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/70137309011.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4485ac5-8d9c-4eaa-b060-730d665ed3b7/busuvadusere.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/patofowivo.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_off0000c9da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9DA 5932 bytes
SHA-256: 0e2b9f607cb2bbb09618c6374045fa32a5fffdf7f8f378d563fd6ad5c7a944aa
font_01_sfnt_off0000de03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE03 10304 bytes
SHA-256: d6b62f09199d78d3a50d504101cd732789af36534ad2786396d5f8b27c510b1a