Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e996d751906cb05…

MALICIOUS

PDF

71.2 KB Created: 2021-02-12 11:48:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7ecbc98113bf737539fb69cf95498515 SHA-1: c2882d5054a93dfb62350cd69b09ebcd35e93414 SHA-256: 0e996d751906cb05846baea1574426e4d34b6471aaca1d622d59392d53e4755e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=kozaks+smithville+mo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403260/normal_601fe99755aac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_601ef1030bd53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_60226ad65d291.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403414/normal_5ff3ebdae9d8f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369317/normal_5fff2410aae6e.pdfIn PDF document text
    • https://kadeborejegan.weebly.com/uploads/1/3/2/7/132740978/xokemid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456686/normal_5ff46552edf6d.pdfIn PDF document text
    • https://zemutixo.weebly.com/uploads/1/3/4/8/134865820/5271398.pdfIn PDF document text
    • https://tusozokusex.weebly.com/uploads/1/3/4/6/134678333/6900361cd8f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469103/normal_5feb3c90c9306.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462730/normal_5fd3410a06b86.pdfIn PDF document text
    • http://gijokamamijole.iblogger.org/brothers_movie_filmywap._online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453336/normal_601b8927e0e75.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/luropi/38080104837.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/56191859523.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/12386138177.pdfIn PDF document text
    • http://wevevaviz.epizy.com/novosixizab.pdfIn PDF document text
    • http://wolaxagemir.rf.gd/synaptics_fingerprint_driver_windows_10_hp.pdfIn PDF document text
    • http://kenasaxoxaxober.rf.gd/globalisation_class_10_extra_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/kahoot_logos_answers.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_off0000dadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADD 4972 bytes
SHA-256: 136728d5e025223cda8e1fd9b46f3a18f209024c02db3b3e23147e71a1b32a58
font_01_sfnt_off0000ebb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB1 10412 bytes
SHA-256: d45479008c84d0e1ca3930ec596dc5809d3b4729de38673127d42d3c0f70862c

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