Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dde1c184148cea6…

MALICIOUS

PDF

72.6 KB Created: 2021-02-18 11:03:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3e147c5f7dc05935a7961423e8fcf53d SHA-1: 4068db511aa0bcc41c64a4212bd66bbd5717795b SHA-256: 1dde1c184148cea67eeb031984ee3350e051a1bb608ff30184218e7d054435e5
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://seumenha.ru/wix?keyword=golf+clash+club+stats+reddit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489843/normal_600d583c124fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481539/normal_60167e58214a6.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/jPq1Yjg/justin_timberlake_friends_with_benefits_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/ajjXLhg/38954895272.pdfIn PDF document text
    • http://vujavapekebabop.66ghz.com/franchise_business_model_template.pdfIn PDF document text
    • http://rutekotugu.22web.org/welding_merit_badge_pamphlet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428061/normal_602af4f7a5885.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485450/normal_5ffc78d790e0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_601b6597373da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387417/normal_60186ae0a0e63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475375/normal_600fdc4a12ee8.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/3685462.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://resomaxijudutuw.epizy.com/88157850872.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/miss_universe_philippines_2018_winning_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/cameroon_information_net.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/33240586272.pdfIn PDF document text
    • http://tewaremiluzavag.rf.gd/kwese_free_sports_tv_guide_uganda.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_off0000df80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF80 5280 bytes
SHA-256: 62a733fa07bb8ddc4c47971c70fcf2e6eb2f2d7056b8daf2a177f5a306f17e35
font_01_sfnt_off0000f16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16B 10664 bytes
SHA-256: 699b9d4f655e76bbe2da1bbe1cb03c1b0a6d95e2ffb202f648f4b17341ce2ebf

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