Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7157d180e275c5c…

MALICIOUS

PDF

77.3 KB Created: 2021-04-09 01:53:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b3f3643d438bc3871c2ea00cfc0fe33 SHA-1: 6433ebac60f873e5a9c32021b49bf85f441ab7b7 SHA-256: e7157d180e275c5c8f54af39393924d79183070a7b6248a4819b0180668640cc
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL, https://xezojetit.ru/strik?utm_term=lenovo+t430+charger+for+sale, suggests a phishing lure related to a product sale. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to a compromised site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=lenovo+t430+charger+for+sale
    • http://jexekiraj.sportsontheweb.net/call_center_operations_manager_job_description.pdf
    • https://static.s123-cdn-static.com/uploads/4480155/normal_5ffb3ef68e644.pdf
    • https://cdn.sqhk.co/sowodopevew/Z4jdpHC/bucket_list_travel_journal.pdf
    • http://gifinibufenatar.medianewsonline.com/axel_vervoordt_wabi_inspirations.pdf
    • https://cdn.sqhk.co/posaleren/jhgc5tr/galactic_empire_logo_wallpaper.pdf
    • https://cdn.sqhk.co/kososojog/fjSiaij/1036157691.pdf
    • http://nokasosozigof.mypressonline.com/vufovolijadijasoxodexij.pdf
    • https://cdn-cms.f-static.net/uploads/4368501/normal_600e0b0b4d251.pdf
    • https://cdn.sqhk.co/letarezetap/CKsihKb/40504930244.pdf
    • http://kejumazinanu.mywebcommunity.org/xevemufixovunaso.pdf
    • http://jerugujekema.getenjoyment.net/adobe_reader_free_download_full_version.pdf
    • http://raxajifiwovoj.iblogger.org/turnover_intention_scale.pdf
    • https://cdn-cms.f-static.net/uploads/4531523/normal_60225bd597d10.pdf
    • https://cdn-cms.f-static.net/uploads/4491671/normal_6068e068c8617.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ded6416f-d4c8-4a0d-8f6a-72a7d62902f4/57050905232.pdf
    • https://uploads.strikinglycdn.com/files/8b21416c-1a01-47f7-b260-f33cbed772ed/nixax.pdf
    • http://vuzozan.epizy.com/25210829488.pdf
    • https://s3.amazonaws.com/vudivuzakal/jomapekaxuserela.pdf
    • https://s3.amazonaws.com/xedewofuretujo/debeliviwuvijefopepof.pdf
    • http://vunowobaxab.epizy.com/que_es_un_estado_de_derecho_en_que_nos_beneficia_brainly.pdf
    • https://s3.amazonaws.com/jivuxo/63805239775.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebac.bin
2126062dcda4382cc5ba6ba94522ca199e4006408b6d4207c8ec01de9d4d8a5a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAC 5540 bytes
font_01_sfnt_off0000fe90.bin
4420be3e12c0a1dd8b02aa0f675d17b57807c3ba2d7ab47ed01ff4cec812e5e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE90 12460 bytes