Malicious PDF — malware analysis report

Static analysis result for SHA-256 602f73abfeb30379…

MALICIOUS

PDF

80.2 KB Created: 2021-02-20 17:32:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: a0791f93117964cff24ce4be752e6319 SHA-1: 266b86cc4023a5cd1fab9b17245007b268da3466 SHA-256: 602f73abfeb30379bc0d940badbbc4271ff887fad6a550f680933e74db2ce7fb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, aiming to trick the user into visiting a malicious domain. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of an external URI and the document's deceptive content point towards 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://jottigo.ru/123?utm_term=does+dog+man+have+a+movie PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375696/normal_602b0dfede1cf.pdfIn PDF document text
    • http://fusagawi.iblogger.org/how_to_rehab_a_sprained_ac_joint.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426687/normal_5fd62b33537b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459162/normal_6022d97c1a163.pdfIn PDF document text
    • http://christinaanddavid2019.com/lagu_dsas_dunia_sementara_akhirat_selamanyayy6k1.pdfIn PDF document text
    • http://bonboxstudio.com/sisugaruvuthek24.pdfIn PDF document text
    • http://bimiwefumukiv.22web.org/kofiwe.pdfIn PDF document text
    • http://getveran.site/cessna_150_flight_manualk0pak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408863/normal_60164a65b1faf.pdfIn PDF document text
    • http://fawejidiribap.22web.org/mafas.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
    • https://s3.amazonaws.com/setigafat/92504173681.pdfIn PDF document text
    • http://luwulifinuneti.epizy.com/conceptual_framework_for_financial_reporting_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/jemebajopavokezebinamokaf.pdfIn PDF document text
    • http://xediguvodolej.epizy.com/basic_arduino_projects_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/manualidades_halloween_6_primaria.pdfIn PDF document text
    • http://mevonaku.rf.gd/83598628310.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/eraserheads_nonstop_song_free.pdfIn PDF document text
    • http://sivutesafukim.rf.gd/95783034807.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/95768280892.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/aprilaire_model_600_installation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/25730487023.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17C 4880 bytes
SHA-256: fbf2f39478651b6d91123dc8eb1922298adaa61a2379ed2dd8701a63e3da0aed
font_01_sfnt_off000101e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E7 10240 bytes
SHA-256: f061ddd69eb0220c1e4229f7af3ce1fdeb91519557974c6bd4160cc844d76520
font_02_sfnt_off000124ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124EA 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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