Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7548744adffebf0…

MALICIOUS

PDF

70.9 KB Created: 2021-03-03 04:21:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 150490965d8eb20bc8f7359ce3a3f656 SHA-1: b14c539f0e273ed47d9ae4cba0fa8551802fa05f SHA-256: c7548744adffebf004e9c46e2da26ed968366bddd52acccee3b488dd00601ac1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://xajibur.ru/wix?keyword=monect+pc+remote+vip+apk+6.1.2 PDF link annotation
    • https://cdn.sqhk.co/fiporalisu/iflTiah/geometry_dash_subzero_all_levels_on_scratch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410416/normal_60214662c31d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376372/normal_6001ff22e5af0.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwopazeg/ieigXif/64609872988.pdfIn PDF document text
    • https://sazotavivi.weebly.com/uploads/1/3/1/1/131164406/niwixin.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/bKekyyA/radian_define_maths.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366050/normal_6007c53a417aa.pdfIn PDF document text
    • http://reform-st.ru/american_sign_language_dictionary_with_pictures_printables5fhc8.pdfIn PDF document text
    • https://wosubazaroden.weebly.com/uploads/1/3/0/8/130813518/wojurujipeledap-devadufusapevas-zipakeguxino-dojuwolipu.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/conan_exiles_multiple_bedsk2dpc.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/funcion_de_hormonas_del_sistema_endocrino.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/hbhfAge/vixuzakuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487424/normal_60018178a3c7c.pdfIn PDF document text
    • https://rafutukeri.weebly.com/uploads/1/3/1/4/131453201/fb74406a9a51b13.pdfIn PDF document text
    • https://cdn.sqhk.co/lupekute/K2Lhfhc/23961635920.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/xadopuwaleba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bowukedogatowo.epizy.com/xepesuzetixu.pdfIn PDF document text
    • http://zakuvusebaj.epizy.com/detof.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_off0000d8e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E2 5368 bytes
SHA-256: 13769517daea32bb085f73dc5dffe58669609305698f053ee7093bd94a81664a
font_01_sfnt_off0000eb32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB32 10380 bytes
SHA-256: 1d3849c3ca77f5eb52ff276d9f1d9361f80581db0a2dca1f57a5438bc83bce45