Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a11bd4128a8af1…

MALICIOUS

PDF

71.7 KB Created: 2021-03-05 01:39:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 163bd3fa1560102f0dea65cb35a9f8c2 SHA-1: 91166ba40d1fea5ebc3a0c65fd45011513a318be SHA-256: 94a11bd4128a8af1a30e1a97ac267788d412953a97c1b61941314259f7d14ab7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/wix?keyword=legendary+tv+apk+update PDF link annotation
    • http://tgesheff.xyz/desobap6ffeh.pdfIn PDF document text
    • https://cdn.sqhk.co/tojegaxamox/ohjgije/777_mega7s_casino_no_deposit_bonus_codes.pdfIn PDF document text
    • http://driveformclanemilwaukee.com/9466582483emkmc.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/hibjeP2/54126070538.pdfIn PDF document text
    • http://rigupamajabap.iblogger.org/volomof.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/op-_amp_circuits_simulations_and_experiments.pdfIn PDF document text
    • http://twitter-center.com/is_dungeons_and_dragons_a_real_game0f1ta.pdfIn PDF document text
    • https://rekizutor.weebly.com/uploads/1/3/0/9/130969391/kozeluxe-lefilewamu.pdfIn PDF document text
    • https://jopazidavasuzu.weebly.com/uploads/1/3/2/6/132681438/xegurefegogadaj-fewaxoma.pdfIn PDF document text
    • https://luzejezoroze.weebly.com/uploads/1/3/4/3/134361740/bf42d5.pdfIn PDF document text
    • http://joy-todays.online/is_the_hoover_windtunnel_2_a_good_vacuumb8n08.pdfIn PDF document text
    • https://dirivabekere.weebly.com/uploads/1/3/3/9/133999762/6146345.pdfIn PDF document text
    • http://tarenutufitox.66ghz.com/bpsc_non_cadre_applicant_copy.pdfIn PDF document text
    • https://dubanivexog.weebly.com/uploads/1/3/4/3/134331992/mabegep.pdfIn PDF document text
    • http://sait-ok.ru/ripubibomunafq4i8e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://valamujunitun.epizy.com/66464989671.pdfIn PDF document text
    • http://jaziwovapotulit.epizy.com/timaxanarisijusod.pdfIn PDF document text
    • http://vumesurev.epizy.com/vizal.pdfIn PDF document text
    • http://tabumuxiwuno.rf.gd/64053724657.pdfIn PDF document text
    • http://wudobepazu.rf.gd/94827275445.pdfIn PDF document text
    • http://suzazigomepaku.epizy.com/descargar_la_biblia_reina_valera_en_audio_gratis.pdfIn PDF document text
    • http://fozilido.epizy.com/65908271697.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_off0000dc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3D 5084 bytes
SHA-256: 38644180b5f184e84888f67cf5e5171958e00b4890aeef40145db5a17be06fbc
font_01_sfnt_off0000edb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 10492 bytes
SHA-256: cc4a335129ce1fadd1f9c3ad054f4f629f0b3dca2dafa71bbc4b972b8e739735