Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb4822aca870d1a0…

MALICIOUS

PDF

88.0 KB Created: 2021-04-25 11:48:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 1f14cb8e4bcfa55fb63d7c48dedb8b2e SHA-1: 07c949d65fec0470778413f14e5975fc39d35681 SHA-256: bb4822aca870d1a095fb856e38568086f354afde56f3938568af36946afba901
96 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. The PDF contains an embedded URI pointing to a suspicious domain, and numerous other unknown reputation URLs are present. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to a malicious site, likely for phishing or to download further malware.

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://leonvi.ru/strik?utm_term=cuisinart+coffee+maker+dcc-3200+replacement+parts PDF link annotation
    • http://chambreop.xyz/magazine_fileoq3lo.pdfIn PDF document text
    • http://yewes.fun/hp_officejet_4500_drivers_downloadidvk7.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/K50khgO/translate_b_inggris_ke_ind.pdfIn PDF document text
    • http://fashion-deals.xyz/17485684472oug3y.pdfIn PDF document text
    • http://sibuvre.com/25802674731mbzh9.pdfIn PDF document text
    • http://tovelksa.website/236981270469lar3.pdfIn PDF document text
    • http://xsafak.com/lp_atonia_uterivszci.pdfIn PDF document text
    • https://cdn.sqhk.co/kafexobesa/uBifJgc/noble_girl_decorate_a_vacation_home.pdfIn PDF document text
    • https://cdn.sqhk.co/vemunaxudug/iaqzZCT/miranoratenefubej.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/YJhfbgd/zawuviruralogajebivodu.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/liwafo/fringe_benefit_guide_irs_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/2016_gmc_acadia_limited_owners_manual.pdfIn PDF document text
    • http://xomogovi.epizy.com/pdf_convert_to_word_zamzar.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/pedanoromegavuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c053171-f9c2-4b05-93f4-21e1f888043a/who_has_the_best_prices_on_pellet_grills.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/probability_distribution_examples_and_solutions.pdfIn PDF document text
    • http://refewebol.epizy.com/small_business_inventory_spreadsheet_template_excel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62ccc94d-46c2-484f-9f7b-ac5d3ab02448/how_big_is_20_by_30.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/716a12a8-8d5b-4c17-8f75-4809fea22f57/cyberpunk_2077_patch_1.07_release.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_off000118bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118BD 5740 bytes
SHA-256: 53e4e99d11c1e6b93915d25f755746c7b1420105f7d1511d224d0eb7351f5220
font_01_sfnt_off00012c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C3B 11588 bytes
SHA-256: 3985ff912e880ae324a44646a88ea47079b519e214352cf8c22986716670baf4

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