Malicious PDF — malware analysis report

Static analysis result for SHA-256 152ab327e4b40891…

MALICIOUS

PDF

76.7 KB Created: 2021-02-27 10:58:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3f2cea60d6178e6ddabe3ff9a496e499 SHA-1: 0bf4832cce4c6d6590bff3774158ef1adf732048 SHA-256: 152ab327e4b408916bf501a6f5804939981e06c72ae1f319f6073af4c34f2473
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://gimoguvi.ru/wb?keyword=duchess%20of%20malfi%20act%20wise%20summary%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391047/normal_60108e654f5f7.pdfIn PDF document text
    • http://supportcopyright.net/kaw_lake_duck_report1vnbf.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/how_to_open_a_file_in_garageband.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406454/normal_6031bcec4792b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423699/normal_5ff85e57952d9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5ffd21d4edc51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480891/normal_6015c850c7eae.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/how_to_tell_size_of_pandora_ring.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405644/normal_600fc3860424b.pdfIn PDF document text
    • http://leadtop.co/fivabamllji.pdfIn PDF document text
    • http://swiss-gear.shop/kefifomx1mw.pdfIn PDF document text
    • http://blubadgehelp.net/386777456620asfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_603120d9c0f5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376359/normal_600be400c7313.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490140/normal_6028a9fb3dcf6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388818/normal_5fe334ba25826.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nosigegu.onlinewebshop.net/vobapisapabepagimi.pdfIn PDF document text
    • http://betixaneja.rf.gd/bawojanilebofiparivada.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_off0000f029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF029 5588 bytes
SHA-256: f09f257ea034a397f3c32aae6aeacc20c89b9debddeda3a36cebe1b390a9bafa
font_01_sfnt_off0001031a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031A 10116 bytes
SHA-256: 8f2d54ae92f342f7aa51bfb085d420e2f4f63057543ffd206a0407005d2a7843