Malicious PDF — malware analysis report

Static analysis result for SHA-256 69527eafad6d901a…

MALICIOUS

PDF

77.3 KB Created: 2021-02-14 04:31:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 791886ce5c4ca7235870417dd2fb7f3e SHA-1: b7e1fe458b4cd6f0f59da293c208b00b4714f737 SHA-256: 69527eafad6d901af82bd385cea3ee9ee088208fabd057c4360f199f492c845c
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=dokkan+battle+mod+apk+platinmods PDF link annotation
    • https://cdn.sqhk.co/vebiziwob/jjOhchb/riluteworegajisozapibe.pdfIn PDF document text
    • https://fixupikavejezop.weebly.com/uploads/1/3/4/3/134392539/basorijira_zugopin_nedegavoged.pdfIn PDF document text
    • http://prolac.ru/job_appointment_letter_for_new_employee_formatniwm4.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/ohdjgob/zetarosudodosedutogo.pdfIn PDF document text
    • https://rajevolid.weebly.com/uploads/1/3/0/8/130813967/3783928.pdfIn PDF document text
    • https://cdn.sqhk.co/vefomatakin/7iclgel/dream_daddy_characters_craig.pdfIn PDF document text
    • https://levukuwaxumofet.weebly.com/uploads/1/3/1/3/131383949/sukabemepuxonepolitu.pdfIn PDF document text
    • http://nyvelsets.online/water_filter_experiment_worksheet7kya0.pdfIn PDF document text
    • http://salea.site/hack_wifi_wpa2_android_app6m2jk.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/g7TIuij/welewazapazawi.pdfIn PDF document text
    • https://womomoko.weebly.com/uploads/1/3/4/8/134848640/3b95a55130abc.pdfIn PDF document text
    • https://cdn.sqhk.co/setawigiz/ehiNhbQ/amazon_uk_kindle_app_for_android.pdfIn PDF document text
    • http://blaugrana.ru/36577525098px3xs.pdfIn PDF document text
    • https://cdn.sqhk.co/padixemugex/RhjJjhO/12324237218.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/hegikgi/radiant_heat_flooring_options.pdfIn PDF document text
    • http://salestore.pro/thermodynamics_notes_mit9f3ir.pdfIn PDF document text
    • https://cdn.sqhk.co/jepipovi/f3DPjiV/mekijadiwixolatogate.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/mozedijiz/zeloxude.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/4560336833.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/google_maps_dark_mode_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/nesifidus.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_off0000d4f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F7 8796 bytes
SHA-256: 7d75837a999f5c0b604a3127d2d60b9a8acc2dd45a1c36143a087f3f4837d9a9
font_01_sfnt_off0000f1d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D2 5212 bytes
SHA-256: 5f41feaf677dcd0390ed1bd3301e9fc3730319aec438dc77ab5dd4df5ac86c73
font_02_sfnt_off0001037d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037D 10592 bytes
SHA-256: 185ecc14149b9e7e1469da87adbcc533362df66d5d52d1ddb6a67f08748ea7e7

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