Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6098c22fd799ce7…

MALICIOUS

PDF

73.5 KB Created: 2021-02-16 21:00:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c07499ccc15c781868ddce2fba7a323 SHA-1: 1c9686ae2d43c190765916e3dc43abf7a5b96199 SHA-256: f6098c22fd799ce7b7f24cf2a4e78e9feae55c07920e08cf9e65334789c06342
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=who%20qualifies%20for%20pua%20nevada PDF link annotation
    • https://tegipogelow.weebly.com/uploads/1/3/1/4/131407588/mijujibadisol.pdfIn PDF document text
    • http://thecabinets.xyz/gulef7597p.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/eKXjiii/fun_sight_word_games_for_kindergarten_online_free.pdfIn PDF document text
    • https://zadavutuni.weebly.com/uploads/1/3/4/3/134343582/252802.pdfIn PDF document text
    • https://sazotavivi.weebly.com/uploads/1/3/1/1/131164406/48ed53471a2f3.pdfIn PDF document text
    • https://gobezovix.weebly.com/uploads/1/3/1/4/131454522/dubopogugaxa.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/8730463.pdfIn PDF document text
    • http://abreudesigns.com/safizadosifufatemomimva9x7.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/jazivuxudupepuwekejwrez5.pdfIn PDF document text
    • https://cdn.sqhk.co/pajelidul/b6v6iJH/clash_of_clans_attack_strategy_th9_farming.pdfIn PDF document text
    • http://aazzzry.space/boson_cissp_freeevjs8.pdfIn PDF document text
    • https://cdn.sqhk.co/nujoxodove/8OlRDje/83403680572.pdfIn PDF document text
    • http://stavki.link/95193974275iuhcc.pdfIn PDF document text
    • https://futilupotozuvat.weebly.com/uploads/1/3/1/4/131454482/konutofov.pdfIn PDF document text
    • https://cdn.sqhk.co/raxulaxesob/jgheM4x/wowuvevilisotemikafalof.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/54559574251.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/aspects_of_political_development.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/blockly_games_turtle_level_7_answer.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_off0000e20c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20C 5328 bytes
SHA-256: ae31a0eb1fe7468c9c1fd9ee0d3351b95c899e5ed739253659146429cb7e7201
font_01_sfnt_off0000f43d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43D 10856 bytes
SHA-256: 15e625de7f7e5235ef55fab517c43629793544e7e7bec6172a68959e1eb6946f

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