Malicious PDF — malware analysis report

Static analysis result for SHA-256 812bc13c7d702fed…

MALICIOUS

PDF

73.9 KB Created: 2021-06-05 10:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: ea0a55c5955550abde8fe6f56c65c174 SHA-1: c18702cd22dd6ffda67eb7a176767926c6119181 SHA-256: 812bc13c7d702fedd3ed388965ca8c47fd17eb82f11183c273d063eb1e869eb3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL pointing to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://coretry.ru/pbw?utm_term=best+audio+settings+for+ps4+gold+headset PDF link annotation
    • https://sarununow.weebly.com/uploads/1/3/4/3/134366188/6763633.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447251/normal_603c6fd1947ea.pdfIn PDF document text
    • https://tobedetileva.weebly.com/uploads/1/3/5/3/135337372/48279bf8b26095.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407994/normal_5fed202a597f1.pdfIn PDF document text
    • https://tavigawatogup.weebly.com/uploads/1/3/5/3/135389884/069f5ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384144/normal_5febeda94f406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464082/normal_6022e5d74d6ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455208/normal_603887d43f679.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446511/normal_5ff1cff46df93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496816/normal_5fc7bf5969d06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393761/normal_602508c33e6c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408976/normal_6002c379a0d81.pdfIn PDF document text
    • https://menusopam.weebly.com/uploads/1/3/4/5/134597334/2423704.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406169/normal_606e38193457e.pdfIn PDF document text
    • https://jowiroluka.weebly.com/uploads/1/3/4/3/134336896/junomuxara.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pezeliv.pbworks.com/f/wagunibi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9b03115-2fd9-4d66-ada5-d955b6d5c094/best_4_person_hot_tub_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4eeb57e-fea0-4242-9c97-22a1f7bda31a/enron_scandal_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5ac711-1326-4bb5-8418-49140b75b72e/25538397869.pdfIn PDF document text
    • http://bokibagaror.pbworks.com/f/laxekeliwudodekikatolewuz.pdfIn PDF document text
    • http://kepigiwup.pbworks.com/w/file/fetch/144500577/8336837965.pdfIn PDF document text
    • http://nefusim.pbworks.com/f/simple_diffusion_is_a_type_of_active_transport.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_off0000e23a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23A 5440 bytes
SHA-256: bec30566056beeadca00d5e68bcb5e6e476a55c401a36837142917b86b947cd0
font_01_sfnt_off0000f4c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C3 10904 bytes
SHA-256: a7cd1f4d1205bfc7668008197eef6244380f7f4264c08a7832a68333238f01dd

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