Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ca02019450a420…

MALICIOUS

PDF

92.5 KB Created: 2021-02-15 10:45:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 404a53acad0abec7f4b4faf8027fc580 SHA-1: fd0dc80384589ee0679938ccceb7feb8197c1a1f SHA-256: 47ca02019450a420978e4196a3ba98fa03853bbb568953b1ff6170a98ffe71de
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'bologen.ru', which is likely a malicious domain used to host or redirect to a secondary payload. The document body, though heavily obfuscated, suggests a lure related to educational materials, aligning with common phishing tactics.

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://bologen.ru/wix?keyword=systems+of+equations+and+inequalities+word+problems+answer+key PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407749/normal_5ff4c0bbc5689.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/JhiaJge/77269153138.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375351/normal_5fc947f4eb3da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403688/normal_5fe0e77a2cdcd.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/2Trm2ct/holistic_nutrition_and_health_coach_certification.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475730/normal_6006101bc9c29.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/geQhgid/96088927867.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403563/normal_5fc8727f12224.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403534/normal_60295b00cf349.pdfIn PDF document text
    • https://cdn.sqhk.co/nasonamav/AqoZHhc/98962586420.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368770/normal_5fc729dc1fdb5.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/hbihhhh/best_speedometer_app_for_bikes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380219/normal_5ff1d113c80e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371010/normal_601dfdf6500c9.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/kewuxejikiwe/bubanovuzutigagex.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/zokavikol.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/85109176583.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_off00012b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B37 5812 bytes
SHA-256: cea361b1eef99c6f60672cfe4ef23d835e1ea7cf50ecfe0522aaedd6b73bbe27
font_01_sfnt_off00013efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EFB 10848 bytes
SHA-256: c2aa749a1b6f2644ef0e13a6d96a5433778b006cb89161e96074acd608791ee7

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