Malicious PDF — malware analysis report

Static analysis result for SHA-256 c78abbb28479e591…

MALICIOUS

PDF

68.5 KB Created: 2021-02-13 10:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 109a0fc68e74a24303773273bb0d5b69 SHA-1: de3fec6cc5b1e5c4d81b8c1402fd60a97cfd5323 SHA-256: c78abbb28479e591170e4850c7ddf8c70f6cf80471df8adcb7db282ec30f6726
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://druttle.ru/wix?keyword=magnum+contact+sheets+1st+edition PDF link annotation
    • https://gilurumujeluzem.weebly.com/uploads/1/3/1/8/131857598/xevepejipavafas.pdfIn PDF document text
    • http://tapadobav.iblogger.org/boboiboy_drawing_apk.pdfIn PDF document text
    • http://nizozipup.22web.org/amstel_light_beer_nutrition_information.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425217/normal_5fec9f26f3f89.pdfIn PDF document text
    • https://tekemuwuva.weebly.com/uploads/1/3/0/7/130775778/1307527.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_5fd5fb91dfc39.pdfIn PDF document text
    • http://yogist.fun/eastern_airlines_flight_401_passenger_listxkb38.pdfIn PDF document text
    • https://zelekunidos.weebly.com/uploads/1/3/2/6/132682808/09f76b6c99d.pdfIn PDF document text
    • http://itabody.space/kamakopaboxikawapudasas5dnm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425484/normal_5fc720b8c162b.pdfIn PDF document text
    • http://reduslimitaly-official.site/594120233972n98v.pdfIn PDF document text
    • http://totalcreditreport.info/85988503585p3wxb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kipamorilezux.epizy.com/27473536338.pdfIn PDF document text
    • http://lamerowed.rf.gd/aims_and_objectives_report_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/joseph_and_his_brothers_bible_worksheets.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_off0000cf80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF80 5284 bytes
SHA-256: 08872d7f56cdd0048a69b10f5c654bf51f9b11ab5ea15bf89230c6e469abeee6
font_01_sfnt_off0000e168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE168 10420 bytes
SHA-256: de511de82d8d3b5c6f068d8ff581b9fd2c4e11a02836b0df05abae2f5ef80f59