Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c74e241ce76d68…

MALICIOUS

PDF

75.6 KB Created: 2021-02-20 22:32:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 729f161fa9fff57ecbc433e575b956d1 SHA-1: bc6eaf5539e90b1971ee755fd67cb90258824de7 SHA-256: e1c74e241ce76d685a85f36cc9e0f5ce19de57407517ba428ec2a2879682ba20
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/strik?utm_term=is+american+horror+story+okay+for+13+year+olds PDF link annotation
    • https://kavosoxevab.weebly.com/uploads/1/3/0/8/130874108/jazoridow_bogor_fimuganemer.pdfIn PDF document text
    • https://palogipotutaz.weebly.com/uploads/1/3/2/8/132814365/8829068.pdfIn PDF document text
    • https://cdn.sqhk.co/sijiposago/jjQEhj7/flying_gorilla_unblocked.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484618/normal_5fe435034c9e5.pdfIn PDF document text
    • https://cdn.sqhk.co/bisuligiga/jeNWhaR/wehrmacht_definition_simple.pdfIn PDF document text
    • https://zixaxufomomofir.weebly.com/uploads/1/3/0/7/130738537/jupidiroxonum_dalefez_bulufilixuligu.pdfIn PDF document text
    • http://rkconstructionsucks.com/9105971464lduqf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381551/normal_601a80c492529.pdfIn PDF document text
    • https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/dijadobaluseg-bomutoji.pdfIn PDF document text
    • https://cdn.sqhk.co/mijajijem/ihbhfGR/41600060842.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470014/normal_6022a159141de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383928/normal_601f1bc09d72c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455886/normal_5fdbaab12ec53.pdfIn PDF document text
    • http://vovality.club/50098549659lnkkm.pdfIn PDF document text
    • https://lurafavef.weebly.com/uploads/1/3/0/8/130813461/xizem.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/zugutixe/ubuntu_usb_stick_boot.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/bloch_baal_shem_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/49245405544.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_off0000e8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B4 5580 bytes
SHA-256: 038a5e934430edf6a8af8f56da41c057224c9e4c0918322db38423fd28d48699
font_01_sfnt_off0000fb94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB94 11104 bytes
SHA-256: a23f46ef4a3d666e59303edbc03d6b2f3e9c9d86c657fe52f9b884dff303423c