Malicious PDF — malware analysis report

Static analysis result for SHA-256 31614da6d28eaeeb…

MALICIOUS

PDF

77.2 KB Created: 2021-02-11 07:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 16152d6f4f9c86aaf96dfbcb2f49ca81 SHA-1: 0d3ace6a69f2048477623d6cd92b1f228ff910a2 SHA-256: 31614da6d28eaeeb0adcfcef7bd6b1942a52ad7b496db7d4410f33797a841cad
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://baarspo.ru/aws?utm_term=attila+total+war+dlc PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408865/normal_5fcf9be8383bc.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/uhehfyf/51567007900.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/djcSQig/levagetinuwoserenawak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446925/normal_5fe46138898b4.pdfIn PDF document text
    • http://twitter-center.com/839300989919pf39.pdfIn PDF document text
    • http://romotogez.22web.org/video_converter_for_android_2._3._5.pdfIn PDF document text
    • http://xunajoza.22web.org/12437593959.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384310/normal_5ff97e16cb6ab.pdfIn PDF document text
    • http://thehensleys.org/counter_strike_1.5_cfg_indir_gezginlerkybao.pdfIn PDF document text
    • http://getyourcredit.info/aristotle_happiness2i3j9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://maladovefo.rf.gd/bomb_calorimeter_experiment_manual.pdfIn PDF document text
    • http://wofenexofube.rf.gd/56267999057.pdfIn PDF document text
    • http://zenujasope.epizy.com/48455271817.pdfIn PDF document text
    • http://soxosodazafu.epizy.com/kunubijimitusinonedoxug.pdfIn PDF document text
    • http://nuluvikubidobo.epizy.com/ceta_bursary_application_forms_2020.pdfIn PDF document text
    • http://poresiz.epizy.com/kudubo.pdfIn PDF document text
    • http://vopevufiwi.epizy.com/free_lagu_lemon_tree_fools_garden.pdfIn PDF document text
    • http://zuraravata.epizy.com/best_android_emulator_for_pubg_quora.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_off0000f3f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F7 4836 bytes
SHA-256: 15cc231a7b0927dca1fd621b75a997ad0d7aad422fb325a2fe637370d5e89dfc
font_01_sfnt_off0001048e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1048E 10452 bytes
SHA-256: e0d942ee747fb7d94502ee20d9e215f90d74765992e3ba4e8273b72766fb3a15