Malicious PDF — malware analysis report

Static analysis result for SHA-256 dce7b511358081ad…

MALICIOUS

PDF

73.7 KB Created: 2020-12-27 18:40:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 9df041ef45da56658c1e133f78dd76c4 SHA-1: 5712a8a1325a9c42115944fda760c9bc55b4b157 SHA-256: dce7b511358081ad05f3c4ec1fddf5bc227be70b1dc912c05a3da2edc0e7614c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/shook?utm_term=mario+kart+64+guide+book PDF link annotation
    • https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/8464477.pdfIn PDF document text
    • https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/wefudesiwaxi_fuximapokar.pdfIn PDF document text
    • https://bajusumuke.weebly.com/uploads/1/3/2/7/132741128/4318541.pdfIn PDF document text
    • https://nasolebad.weebly.com/uploads/1/3/4/6/134695036/bujiget.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/vDnhhgg/driving_school_2018_gameplay.pdfIn PDF document text
    • https://tixuguzuw.weebly.com/uploads/1/3/4/0/134096155/xinowef.pdfIn PDF document text
    • https://forovaze.weebly.com/uploads/1/3/4/3/134315943/winarawujupekijon.pdfIn PDF document text
    • https://rolewexuvuviwu.weebly.com/uploads/1/3/4/7/134742390/zevulu-jilosulugizu.pdfIn PDF document text
    • https://sizuginoten.weebly.com/uploads/1/3/4/4/134490660/26b5e.pdfIn PDF document text
    • https://taxufutusa.weebly.com/uploads/1/3/4/5/134514166/tadilelub-wegenef-fubosuvikopubaz.pdfIn PDF document text
    • https://wejusapud.weebly.com/uploads/1/3/4/6/134614256/03c33e6ccb3b4.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/ihtUigM/quiz_planet_app_android.pdfIn PDF document text
    • https://terowibew.weebly.com/uploads/1/3/4/3/134370771/biraguso-zibovekadiv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fa7fbd2-05b5-415e-985c-f7a9abf02c39/does_chick_fil_a_drug_test_before_hiring.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30e352e1-8114-4433-9efb-a84817695373/download_office_zombie_mod_apk.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_off0000e510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE510 5236 bytes
SHA-256: 7182c6983f297c3d88b289d01406f1813fed0f5848771d8275ffb8eca3dd2e1c
font_01_sfnt_off0000f702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF702 10592 bytes
SHA-256: 4c3019b59775f9658ddf63e2a1589806f78bf4e547d68678f4b7e3413b9df255

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