Malicious PDF — malware analysis report

Static analysis result for SHA-256 82cc68ecce02f1e4…

MALICIOUS

PDF

95.4 KB Created: 2021-01-31 08:24:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 7482085af7bc0ad4e1aa6c34a3a65e66 SHA-1: 85fe281af532fc0fe90f215b7dcc0b507420e5f4 SHA-256: 82cc68ecce02f1e459a2db2daf9fbf949a3eb603928db294525083c15ae0ea93
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. It contains numerous embedded URLs, with one prominent URL suggesting a lure related to the 'Metro Exodus' game demo. The PDF structure and embedded content are consistent with a phishing document designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/aws?utm_term=metro+exodus+demo+pc PDF link annotation
    • https://vavetupabon.weebly.com/uploads/1/3/3/9/133999816/fozasifu.pdfIn PDF document text
    • http://letekidela.iblogger.org/39046458053.pdfIn PDF document text
    • https://bibokesoxi.weebly.com/uploads/1/3/4/8/134850131/mipegadup-vasagarife-batokemivosa.pdfIn PDF document text
    • http://help-mediasupport.com/45962926326m31mi.pdfIn PDF document text
    • http://losewunisa.22web.org/44585783219.pdfIn PDF document text
    • https://ginuwedisifixel.weebly.com/uploads/1/3/4/7/134744372/76a90.pdfIn PDF document text
    • http://tesidakikize.iblogger.org/motifibezusixelupa.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://kuzojif.rf.gd/frozen_croissant_dough_sheets.pdfIn PDF document text
    • http://sibovup.epizy.com/mechanical_advantage_of_simple_machines_worksheet_answers.pdfIn PDF document text
    • http://zokitidekav.epizy.com/d_d_5e_guide_druid.pdfIn PDF document text
    • http://jilerixam.epizy.com/html_injection_cheat_sheet_owasp.pdfIn PDF document text
    • http://lowadof.epizy.com/ejercicios_de_movimiento_rectilineo_uniforme_wikipedia.pdfIn PDF document text
    • http://rebobimakefeli.epizy.com/acute_triangle_trigonometry_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/academic_performance_research.pdfIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/66477317938.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/16952098036.pdfIn PDF document text
    • http://jegovogetaferop.epizy.com/gupazibibiguravisodona.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/bajijofubususamofozolele.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/nitekozixagivedijexa.pdfIn PDF document text
    • http://doxekapop.rf.gd/foxit_reader_full_version_kuyhaa.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_off00012a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A83 4780 bytes
SHA-256: 0defa9172c1a06281e9314442f7cd3a486d44bea35e25867478398d9b44a4716
font_01_sfnt_off00013acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ACD 11740 bytes
SHA-256: 2402c8f39c9eacf352d30e33f0fdc8ff8670b67b8c897d6398b192a468d52ee8
font_02_sfnt_off00016240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16240 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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