Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d88f117fcab908…

MALICIOUS

PDF

70.8 KB Created: 2021-02-24 18:14:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 771894e53595444eae6f2e20954daed1 SHA-1: 5ad08608c02d74a16bc6a9f5b44a7054789852a1 SHA-256: 14d88f117fcab908f4dca2b5dbabadf389a4a053874ea8e6ca7d962367400676
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/award?keyword=how+to+tell+if+battery+charger+is+working PDF link annotation
    • http://mitidogifomasis.iblogger.org/phonological_awareness_skills_program_test.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_60171130a6504.pdfIn PDF document text
    • http://ses-paypal.com/new_christian_songs_free_malayalamm6vk5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366978/normal_6004f3d5f19ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380090/normal_5fdde6e6ddebf.pdfIn PDF document text
    • http://swiss-gear.shop/megan_fox_height_and_weight8zi57.pdfIn PDF document text
    • https://zijunuriv.weebly.com/uploads/1/3/4/8/134892089/ruxezir_mazilavadiga_likixuwega_gulatodasikemup.pdfIn PDF document text
    • http://innov-cis.net/dasimepufavadegs3rwt.pdfIn PDF document text
    • http://reduslim-official.website/rejuku8t51t.pdfIn PDF document text
    • http://8gusevshop.website/753923914194gq9f.pdfIn PDF document text
    • https://jovinafunen.weebly.com/uploads/1/3/2/6/132695325/guwojenope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384472/normal_5fe954cfbbb55.pdfIn PDF document text
    • http://tofuvuniz.iblogger.org/reporter_amharic_newspaper_job_vacancy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368985/normal_602d239ea041e.pdfIn PDF document text
    • https://pavibizad.weebly.com/uploads/1/3/0/7/130740264/zonedijir.pdfIn PDF document text
    • http://fresh-ita.fun/script_skin_alucard_mobile_legends11rjv.pdfIn PDF document text
    • http://20970907.net/16725011028k78xp.pdfIn PDF document text
    • http://legko.travel/xelonim3hc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vusanaxipunuli.rf.gd/85051850626.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_off0000d812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD812 5504 bytes
SHA-256: e62a1ab69543b598b4de95a929bcb9cd556f6d2dfe32f3833ef99a845dfcd226
font_01_sfnt_off0000eadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADD 10240 bytes
SHA-256: 818480192c0ee1ed0ae28f99655d9915e21439e4ef44cc56d0f27f8684281918