Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85fde28c8febb9f…

MALICIOUS

PDF

72.1 KB Created: 2021-02-27 16:05:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8cde82437909c6c2dea1e214b61d876e SHA-1: 84d872380564c111ccba563db739b47474130c54 SHA-256: e85fde28c8febb9f721212394a1715a2d3fa4471df729e03afcf8b34bf61c22d
126 Risk Score

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://pelibifir.ru/wb?keyword=covid%20test%20centre%20jobs%20glasgow PDF link annotation
    • https://ziwuwozapa.weebly.com/uploads/1/3/4/5/134517717/235d896697f72b.pdfIn PDF document text
    • http://wilozobugo.iblogger.org/bitixili.pdfIn PDF document text
    • https://bemozepe.weebly.com/uploads/1/3/0/7/130739793/9660959.pdfIn PDF document text
    • http://muluwusive.22web.org/fuxowamupezixotoxizisujol.pdfIn PDF document text
    • https://nikamajavefuxo.weebly.com/uploads/1/3/1/0/131069808/ab339b6d87.pdfIn PDF document text
    • http://show-visitor.xyz/8886596271mju1b.pdfIn PDF document text
    • http://guwobedegaf.22web.org/osmosis_imdb_parents_guide.pdfIn PDF document text
    • http://kigujawogusufiz.22web.org/juxawidiwalegavokife.pdfIn PDF document text
    • https://jasutabaxe.weebly.com/uploads/1/3/0/8/130873915/3456664.pdfIn PDF document text
    • http://kepajawidar.22web.org/vitazasesarijoxonele.pdfIn PDF document text
    • http://kfnwejfnkwheklf.space/female_yellow_finch_soundec915.pdfIn PDF document text
    • http://salejozokaboruz.22web.org/flow_cytometry_fixation_protocol_formaldehyde.pdfIn PDF document text
    • http://fawetugamuxix.66ghz.com/wusomovox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bipanotobewosa.epizy.com/20469811055.pdfIn PDF document text
    • http://todizegi.epizy.com/magistrates_sentencing_guidelines_handling_stolen_goods.pdfIn PDF document text
    • http://mosoveta.rf.gd/51747606347.pdfIn PDF document text
    • http://worubag.epizy.com/honda_rebel_500_abs_price.pdfIn PDF document text
    • http://dilabopitomosif.epizy.com/81092699766.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_off0000dd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD36 5380 bytes
SHA-256: 387d5331bbb8ec432a1bf078c225dae15c4bdf04e786361b20e6299c14ff5f79
font_01_sfnt_off0000efa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA1 10476 bytes
SHA-256: 4ba23c6ab2ab102aca1855e28506e07e35ce26bfc10e198572d750495c5421a4