Malicious PDF — malware analysis report

Static analysis result for SHA-256 24953ede25494803…

MALICIOUS

PDF

69.6 KB Created: 2021-02-17 16:24:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 133f0a332ac1653aa2ada4a7dd9c9476 SHA-1: f8a90b532321f4c400e74903df5b514faa8589a8 SHA-256: 24953ede25494803107798126f99072440002dea1fd6e85ee67e595b2eb77af2
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=starts+with+i+word+whizzle+answers+geometry In PDF document text
    • https://raguwagoneneza.weebly.com/uploads/1/3/1/3/131384547/2308386.pdfIn PDF document text
    • http://mstmail.space/que_es_nacionalismozuxzf.pdfIn PDF document text
    • https://migawonakizize.weebly.com/uploads/1/3/1/6/131637147/7395673.pdfIn PDF document text
    • http://bnatural.space/incentive_and_bonus_policy_templatef2ai7.pdfIn PDF document text
    • http://winoorama.website/ate_ve_su_2_indirrfx36.pdfIn PDF document text
    • http://raisinsapp.club/gukajapugodadivebagofn2goz.pdfIn PDF document text
    • https://pixasowurixes.weebly.com/uploads/1/3/4/9/134904492/9102885.pdfIn PDF document text
    • http://sesigugakipezov.22web.org/demand_letter_breach_of_contract.pdfIn PDF document text
    • https://tavurusifuta.weebly.com/uploads/1/3/0/7/130740255/sinazodaduwadoz.pdfIn PDF document text
    • http://sdek-24.cc/88429071749x31tm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vanazabeso.epizy.com/togutodaxeredinenelat.pdfIn PDF document text
    • http://duzebufulumaw.epizy.com/netflix_movies_iphone.pdfIn PDF document text
    • http://lelexuxifu.epizy.com/xojozezobonofuwedanamavo.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_off0000d48f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48F 5584 bytes
SHA-256: 7618bfa92e01322981e0e0874e3dc42c499e2b8d50512c1d4b8edef2e0ba1bea
font_01_sfnt_off0000e77e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77E 9992 bytes
SHA-256: 25c3d8bfe501a8443f3c1d9dbf6984c9af142eca3c80095c2518eb319ccea7a5