Malicious PDF — malware analysis report

Static analysis result for SHA-256 adc1ac9792aa3281…

MALICIOUS

PDF

72.9 KB Created: 2021-02-18 21:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b5a73e4bd42469ce09a5d19de7bba7be SHA-1: df2df573b5ffddb60201439d57336ed882202267 SHA-256: adc1ac9792aa3281dc83d20fc554a93158d0bd169affd42304b1709d261273af
126 Risk Score

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://jottigo.ru/wix?keyword=wow+classic+active+game+time+required PDF link annotation
    • https://girowotejetut.weebly.com/uploads/1/3/1/4/131406843/4828192.pdfIn PDF document text
    • https://litunuvojiv.weebly.com/uploads/1/3/0/9/130969221/78a14bbb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404296/normal_6018ee1111f3b.pdfIn PDF document text
    • http://bioforcecolumbia.site/agile_project_management_techniqueswfqt7.pdfIn PDF document text
    • http://naturka.space/63776496039txzfz.pdfIn PDF document text
    • https://cdn.sqhk.co/vivepovugeli/jc1iy6o/piano_lessons_for_free_online.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/IKu7vgc/traincontrol_r_library.pdfIn PDF document text
    • https://cdn.sqhk.co/dudexobexine/d6TVPhh/92314809597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480749/normal_5fec29a6e0cf1.pdfIn PDF document text
    • https://cdn.sqhk.co/jisujesox/gihfqhf/49247708957.pdfIn PDF document text
    • https://daxodewime.weebly.com/uploads/1/3/1/3/131398188/ad839b73.pdfIn PDF document text
    • https://mevavenepid.weebly.com/uploads/1/3/1/6/131637679/246b45.pdfIn PDF document text
    • https://cdn.sqhk.co/tokititagiwe/h65tThh/empire_total_war_politics_guide.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/bootstrap_basic_template_free2xj6s.pdfIn PDF document text
    • http://xbet1.fun/nenidatizaxujanuminigoxqvkdk.pdfIn PDF document text
    • https://fisoguxosat.weebly.com/uploads/1/3/2/7/132740182/44d441c7827.pdfIn PDF document text
    • http://daliadiago.com/434919482072ssms.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/vajefam/asiong_salonga_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/dekixepiregibo.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/bojidepu.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_off0000dfa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA7 5548 bytes
SHA-256: 74222d72fae4e02f74dd79edc8388d832fd340b1a4c637123d447a33bcf1a397
font_01_sfnt_off0000f286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF286 10544 bytes
SHA-256: e716cdd13de3d6a9ba267835fc77b2f20baace2ef28132a8094f3cb61f3d4610