Malicious PDF — malware analysis report

Static analysis result for SHA-256 1482b05bc358e4a6…

MALICIOUS

PDF

91.3 KB Created: 2021-02-22 05:12:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2e233993878eb348db4c4802fd5eccf7 SHA-1: e6e2e8543d036f1277dd430313752703f6007ca1 SHA-256: 1482b05bc358e4a6cffe3e16725ad9df74ff98ef1f9a16de304397c336824eb6
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, one of which is `https://jottigo.ru/wb?keyword=the%20count%20of%20monte%20cristo%20full%20movie%20download`, suggesting a lure for users searching for content. The presence of embedded URLs and the nature of the detection indicate it likely serves as a delivery mechanism for further malicious content.

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://jottigo.ru/wb?keyword=the%20count%20of%20monte%20cristo%20full%20movie%20download PDF link annotation
    • https://cdn.sqhk.co/fazituku/le3jjhd/94119871856.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/z0HJjbO/81815209199.pdfIn PDF document text
    • https://cdn.sqhk.co/sewujuzanas/gg2heby/diy_cousin_it_costume.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476443/normal_602391fbc9132.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464534/normal_5fdfabbdbf055.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/jh8IgfV/spin_tops_hack_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_600b4aa3361f6.pdfIn PDF document text
    • https://cdn.sqhk.co/gagupibi/geKYhS5/mizulawanobufibeli.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/eifiejh/did_you_know_interesting_facts_about_human_body.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogutofarori.epizy.com/online_baby_announcement_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/mubabobariz.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/47782592286.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/gina_guidelines_copd.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11195 5360 bytes
SHA-256: 9bf8e45baae5195f246cc4559dc629ddb2bdf78615a8b7b3c68ff1b0751d7e8f
font_01_sfnt_off000123b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123B9 10792 bytes
SHA-256: 0f0ed01a2c86b6b2c1c0cddef0738fa2ec77ce95da4af586b1456fda487ae05f
font_02_sfnt_off000148bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148BF 16508 bytes
SHA-256: 9de0091647991df32b7789ab4c7e5139642115ce260d1ff18cde85b48939320c