Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95f161b523d4e9a…

MALICIOUS

PDF

100.7 KB Created: 2021-03-03 06:22:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b73fb195b07f77cd1e05a54a8c51a9a3 SHA-1: c81665871209d56283c632eed4a23c2c604b37d3 SHA-256: d95f161b523d4e9a8c668d66da56639171cb2b62ce63f10deb4401323b7567a6
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan. The embedded URL points to a suspicious domain, and the document body, though garbled, contains text related to search queries, suggesting a lure. The ML classifier also strongly indicated maliciousness.

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://jottigo.ru/aws?utm_term=briggs+and+stratton+8+hp+engine+carburetor+adjustment PDF link annotation
    • https://cdn.sqhk.co/sibamoxa/T0ZChfY/aerox_3_amazon.pdfIn PDF document text
    • http://neo-tp.ru/59276544715auhk6.pdfIn PDF document text
    • http://copyrightprivacy.site/vokipasanaxupatobuzesane575pt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464078/normal_60199fb0ebcc7.pdfIn PDF document text
    • http://biomaniks.website/carpet_cleaner_rental_lowes._ca8ry3v.pdfIn PDF document text
    • http://pop-marketplace.ru/write_an_equation_in_slope_intercept_form_worksheettk0mp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_6037755d133cd.pdfIn PDF document text
    • http://tehnotop.store/bufukujspgh2.pdfIn PDF document text
    • https://cdn.sqhk.co/zumovinej/jgfifxZ/new_naval_pc_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496586/normal_5fcba1a9c9f1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411923/normal_5ffe8a62a5d1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483837/normal_5fc5c95cb414d.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/jhiQe5E/gipapoxufodulapuviso.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/fuvidokibet/9970078512.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/elements_of_programming_interviews_java_github.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/a_christmas_carol_book_report_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/vetobogir.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_off00014ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14ADA 5916 bytes
SHA-256: 113645c1700531409747a4063e46ce6aa2684d7cc2bbd19f22cf20e9619b271c
font_01_sfnt_off00015ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15ECE 11180 bytes
SHA-256: d9c067dc7cfde26c2e94104611eed9a4ba048b92026030c0efb9e8bfae5d5ec3

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