Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e997056a202c88…

MALICIOUS

PDF

73.5 KB Created: 2021-02-25 15:27:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5b36bb410400bf6428a4de13d3ba5d94 SHA-1: 9c03e7ffa18b94c27f45076da7376bad5e2e9798 SHA-256: b0e997056a202c884d290866c4c657bd40e20df77f9cfa8be909e9d050996b48
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/award?keyword=arcsoft+showbiz+5+free+download PDF link annotation
    • https://cdn.sqhk.co/gedodupem/bjjTZtJ/lovamogulububufawo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478148/normal_6005e86e896ad.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/Kjhjcii/winezefatewimibewog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500668/normal_602b987a9dc72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_6011510e7f4c6.pdfIn PDF document text
    • https://cdn.sqhk.co/zidulibu/gdjahbK/farm_animal_rescue_south_florida.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/polar_ft60f_pur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386080/normal_6019be424aebb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387565/normal_5fe320a1f09ec.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wemubivoparuf.epizy.com/transformador_binario_a_texto.pdfIn PDF document text
    • http://pudusibojekajip.rf.gd/pakurajesobo.pdfIn PDF document text
    • http://povuputuk.epizy.com/brain_stroke_ct_scan_report.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/74960226569.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/46312960109.pdfIn PDF document text
    • http://ronufoju.epizy.com/susasivuvejativ.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_off0000e073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE073 5504 bytes
SHA-256: 018e9c35e998bb8ec021b4bbb78b0a291d1dcda1c3232a139db2e7d43626d246
font_01_sfnt_off0000f34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 11048 bytes
SHA-256: 50f6e13058b42cdce9b7bd7d6f2d9e474cbd62cafded5bd3db45ea8596111a96