Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb2c0207c2083fd4…

MALICIOUS

PDF

79.0 KB Created: 2021-05-09 18:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 4486b640668477d4aa349f568162716f SHA-1: 7f52a9f11260e37ed8a96bd7411f4185ff9b4b9c SHA-256: bb2c0207c2083fd46f0768c8f0082b986f8682acd0ea812c097796748702af8f
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a domain associated with phishing, and the document body, though obfuscated, contains keywords related to job searches, suggesting a phishing lure. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gimoguvi.ru/strik?utm_term=emergency+medicine+pharmacist+jobs+north+carolina PDF link annotation
    • http://zebisipojadowe.iblogger.org/what_does_jim_represent_in_the_glass_menagerie.pdfIn PDF document text
    • http://wixujikubipom.mygamesonline.org/bpsc_prelims_question_paper.pdfIn PDF document text
    • http://vefobekusira.iblogger.org/dukomogejesosote.pdfIn PDF document text
    • http://bijowuxupolapi.sportsontheweb.net/57935055689.pdfIn PDF document text
    • http://gagitevanonuti.mywebcommunity.org/homelite_gas_trimmer_carburetor_adjustment.pdfIn PDF document text
    • http://pubavamamuzagur.iblogger.org/atomised_book.pdfIn PDF document text
    • http://fowunajokofow.iblogger.org/foluxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nekaxikafixof.epizy.com/bihar_ke_gana_ing.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/44937421829.pdfIn PDF document text
    • http://wamodaf.epizy.com/1432902301.pdfIn PDF document text
    • https://2521c3e2-5736-45bb-9381-71005f2ffa37.filesusr.com/ugd/c85705_e1b7716d0665419fb9e5cd3988622089.pdf?index=trueIn PDF document text
    • http://juborekif.atwebpages.com/archicad_shortcuts_mac.pdfIn PDF document text
    • http://xatudoxi.epizy.com/dysfunctional_uterine_bleeding_rcog_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/riesgo_y_presupuesto_de_capital.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/the_antonym_of_the_word_solitude.pdfIn PDF document text
    • http://xesovukefezusag.rf.gd/android_sqlite_database_recyclerview_crud.pdfIn PDF document text
    • http://lebefajapir.rf.gd/33189439348.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/15641553372.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/samsung_rs261mdwp_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/lakuwavulukevivuwonuxagu.pdfIn PDF document text
    • https://12350a4d-732a-4148-85a7-4fa27f2a77ec.filesusr.com/ugd/17beed_70a815e817204798996b53a0f1ded429.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70C 5548 bytes
SHA-256: ee2b08d29132d5a81b1bbf94624d9bd813e6fbabe01464b77f954b0c6c636e0b
font_01_sfnt_off0000f9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B6 10544 bytes
SHA-256: 86473a4d8e2f087a72d0b4be7969be18556643ad2471c51478118350321e73f7
font_02_sfnt_off00011dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DC4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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