Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee659de15854e3a…

MALICIOUS

PDF

72.8 KB Created: 2021-02-28 14:16:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a508ad09cf894e3704801d3a5e53ecbf SHA-1: 954e30f028595a8a142c2027ab83e88f1444c6d1 SHA-256: fee659de15854e3a29889274f101a7920fa0d24386805f9306a9686a6e670037
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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.
  • 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/award?keyword=what+is+the+definition+of+an+llc In PDF document text
    • https://dujisiseruw.weebly.com/uploads/1/3/0/7/130776106/rajuwelapuwutu-zajamowizizaba-wojisaxupob.pdfIn PDF document text
    • http://vosusapar.22web.org/oracle_12c_rac_requirements_linux.pdfIn PDF document text
    • https://piwomokoxik.weebly.com/uploads/1/3/5/3/135335333/xumaj.pdfIn PDF document text
    • https://famogapev.weebly.com/uploads/1/3/1/6/131606489/zezemaj.pdfIn PDF document text
    • https://litizabege.weebly.com/uploads/1/3/4/7/134713043/gimefam_sufigaposapexit_zikebo_gamejuj.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/jjgfr6A/yeezy_350_israfil_shirt.pdfIn PDF document text
    • https://cdn.sqhk.co/berovanova/Wjd6JSh/covid_alert_nj_reviews.pdfIn PDF document text
    • https://jukovuwivoxufab.weebly.com/uploads/1/3/3/9/133997180/zeref_xonimidiza_gijoxulad_veziju.pdfIn PDF document text
    • https://xidoferowugefu.weebly.com/uploads/1/3/4/3/134348033/4341505.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/giVjaKD/what_the_fight_ios.pdfIn PDF document text
    • https://fuzifilagowiw.weebly.com/uploads/1/3/4/6/134698760/welejekot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nozumipoz.epizy.com/sarcasm_fb_video.pdfIn PDF document text
    • http://pofabavulaxeli.rf.gd/domusijitetajesepupo.pdfIn PDF document text
    • http://wotisonuli.epizy.com/animal_jam_password_cracker_no.pdfIn PDF document text
    • http://dowinoxerirud.epizy.com/gy6_performance_parts_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/metro_2033_pc_game_trainer_free.pdfIn PDF document text
    • http://temomel.rf.gd/40553694334.pdfIn PDF document text
    • http://nodefojabotozij.rf.gd/gowugapurejanudexanew.pdfIn PDF document text
    • http://ximawefab.epizy.com/tujarefexotixefurejenaj.pdfIn PDF document text
    • http://puzasapexuwuju.epizy.com/foreign_exchange_risk_management_techniques.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_off0000e03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03D 5024 bytes
SHA-256: bb77199c56a1b328e918c6c286c630be81cadbb3e086393fd10045bd593cb564
font_01_sfnt_off0000f165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF165 10648 bytes
SHA-256: 152dd917e2e3975b0ebf555b7828847595cbd31389302fc23cc1754d79f133af