Malicious PDF — malware analysis report

Static analysis result for SHA-256 6280039a54f8ff47…

MALICIOUS

PDF

72.4 KB Created: 2021-02-24 06:41:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 02615a1bf1f448d4dd2e5558d4054ee2 SHA-1: 193ee5c8069e13e8f97de254a489514b87f3b421 SHA-256: 6280039a54f8ff4718bed0e20a6030c74e2eb00b062a98e0534cc9d500e51827
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=la+casa+de+bernarda+alba+pdf+descargar PDF link annotation
    • http://jabofuzo.22web.org/44471498200.pdfIn PDF document text
    • https://cdn.sqhk.co/fowijuseziju/ehjibgf/draw_line_classic.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374196/normal_5fde8b4bbb6b4.pdfIn PDF document text
    • https://bodumiwi.weebly.com/uploads/1/3/1/4/131406735/e1a6329a534d7e.pdfIn PDF document text
    • https://jabibodusap.weebly.com/uploads/1/3/2/6/132681053/2828710.pdfIn PDF document text
    • http://kurewegunopef.66ghz.com/falulozilakit.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/e0KgdMU/super_slime_ben_10_apk.pdfIn PDF document text
    • https://wuzesitawe.weebly.com/uploads/1/3/4/7/134733123/gudevosufasarefu.pdfIn PDF document text
    • https://bajiwemijowulu.weebly.com/uploads/1/3/5/9/135990815/nakur.pdfIn PDF document text
    • http://wurulef.22web.org/apples_and_oranges_riddle_answer.pdfIn PDF document text
    • https://cdn.sqhk.co/vefuwatak/bcPW3oo/53813305771.pdfIn PDF document text
    • https://rosajojuzexoked.weebly.com/uploads/1/3/0/8/130874599/3070864.pdfIn PDF document text
    • https://rugabefek.weebly.com/uploads/1/3/0/7/130775918/263857.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/fhchjia/96304034583.pdfIn PDF document text
    • https://nawiveburejofi.weebly.com/uploads/1/3/1/3/131381882/gipodudatiza_jarekuriwila.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/3823106.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366341/normal_5fc844b6257e6.pdfIn PDF document text
    • https://kupifibadobibe.weebly.com/uploads/1/3/4/5/134512214/2944867.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mumidukegex.rf.gd/one_piece_bounty_rush_apk_obb_revdl.pdfIn PDF document text
    • http://gubazit.epizy.com/xikivotaxuz.pdfIn PDF document text
    • http://rifesos.epizy.com/urine_culture_coliform.pdfIn PDF document text
    • http://rogidisili.rf.gd/roradofozarikapi.pdfIn PDF document text
    • http://jalasofumikom.rf.gd/xajafedunawuratinafup.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_off0000dbda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDA 5404 bytes
SHA-256: a2c77feee6337d6f5110487b40f204d4dc64bc311355c2a06747258c6a75fd97
font_01_sfnt_off0000ee47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE47 11608 bytes
SHA-256: 8e1e04e640b52fdc1323744bc28bb421c6bff2f3fbdc7b40f6f7f75d888e9e02

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