Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e189cd3e802f9c8…

MALICIOUS

PDF

77.9 KB Created: 2021-03-22 09:26:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 65a38d2e3daea929e153f59a8a4c9fee SHA-1: 5f12f2b3a94703f9f9971f8e069d32bb6384a222 SHA-256: 5e189cd3e802f9c87ac0ba643622777ca3e034221accea29c3a1f9571555e9c7
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a lure to external malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=archon+starcraft+2+mode PDF link annotation
    • https://cdn.sqhk.co/baresupujar/BBnkHhc/82151337482.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/hbklha2/95878479977.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/c3hbEig/snappers_fish_and_chicken_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pozazoji/hhQ48Eh/cytus_ii_apk_free.pdfIn PDF document text
    • http://wipebodu.mypressonline.com/tuwaxiximuguvudezogix.pdfIn PDF document text
    • https://cdn.sqhk.co/tusujoxaseru/gdgjbDX/30092435454.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/cl3jchf/android_marshmallow_disable_lock_screen_notifications.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366961/normal_601e366d4e653.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/4icnjgX/31200019493.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424007/normal_600f9d1ee6c3b.pdfIn PDF document text
    • https://cdn.sqhk.co/kesavaki/jejgvhh/43870859561.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CvgiczF/ragaduwojak.pdfIn PDF document text
    • http://kijekidajefi.getenjoyment.net/83783028895.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390097/normal_5fdd6cf37808a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lipisalozolujew.epizy.com/video_show_app_for_windows_10.pdfIn PDF document text
    • http://zigejobo.epizy.com/pdf_annotation_software_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/ant_design_form_item_disabled.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/what_is_b1_service_honda_accord.pdfIn PDF document text
    • http://posikin.myartsonline.com/bidegipaxigikibipune.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_off0000f19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19C 5348 bytes
SHA-256: ecb775705ed3ea3d2aeee0c23bab2257e5a5619f2737737c0f1961856bf62838
font_01_sfnt_off000103a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A1 11560 bytes
SHA-256: 0a300e28d46c1276509cb89d46fa15659a196a5e400dd248fe74bde33a51fae9

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