Malicious PDF — malware analysis report

Static analysis result for SHA-256 f33e32eb193d0cd2…

MALICIOUS

PDF

160.4 KB Created: 2021-02-22 05:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 894c9b70dc308f8c9bc8801f7270c1a9 SHA-1: 283800ef6e9c6df259adb353a44637d5971b15f7 SHA-256: f33e32eb193d0cd231b3b5a2ed8b1836fd874595b08e8c828335bd9fab767bd1
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URL pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to 'Carl Sagan death reason', suggesting a lure to attract user clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://bologen.ru/123?utm_term=carl+sagan+death+reason PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4467274/normal_5fca7dd94d758.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458634/normal_602decb9406d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463277/normal_5fff64d82500f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_60035c397f716.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449395/normal_601d88549aa00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478383/normal_5fffdb675ecbe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467007/normal_5ff14aea30f49.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366408/normal_60017118ef4ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460471/normal_5fe4225a9e2a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380540/normal_601aa84e3a182.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/jafujasiwetid/formica_sheets_lowes_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/nomajesaxelozuzizes.pdfIn PDF document text
    • http://lizolubemerawi.epizy.com/abcd_pattern_forex.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/71603408770.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/rakidazusupolivuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/cdip_exam_study_guide.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_off00023956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23956 4992 bytes
SHA-256: 1f8d4531ba83481767807f4c3a485ea1350ecc5cf3108768f91a7f5e8d6a0d1d
font_01_sfnt_off00024a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24A3E 13064 bytes
SHA-256: da7e79b2d4ed610106ea63f2018b5ee6f3aafa78b9c429910d7465280f16018c

Open this report in the interactive analyzer, or submit your own file for analysis.