Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb223e289d29318…

MALICIOUS

PDF

72.4 KB Created: 2021-01-19 17:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2a61843ef8c4515e03d6bbd70a2941c3 SHA-1: 7002f8529e2525bb2a6d1e912526e991d2c55987 SHA-256: 6fb223e289d2931863a55281c1acf2a45c6f4c9cc8b5278d17d14023869fde52
146 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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://leonvi.ru/wb?keyword=verizon%20wireless%20content%20transfer%20app PDF link annotation
    • https://cdn.sqhk.co/xomorenut/hciaEl2/solar_system_and_star_system_planets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402517/normal_5fd2185fec129.pdfIn PDF document text
    • https://cdn.sqhk.co/derebeduno/3zTbFUE/fashion_salon_edison_nj.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/ghihFjc/55614429521.pdfIn PDF document text
    • https://besuxape.weebly.com/uploads/1/3/4/3/134374749/669077e42e6b7bb.pdfIn PDF document text
    • https://zovezeko.weebly.com/uploads/1/3/4/6/134697242/zibutuvekofirobo.pdfIn PDF document text
    • https://cdn.sqhk.co/kivuwutu/gjhhjhf/best_of_arijit_singh_songs_list_youtube.pdfIn PDF document text
    • https://jazelisis.weebly.com/uploads/1/3/4/8/134870131/9056775.pdfIn PDF document text
    • https://vakupakofusiwu.weebly.com/uploads/1/3/5/3/135399484/2175026.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/6913806.pdfIn PDF document text
    • https://cdn.sqhk.co/vadezewe/hTsijha/cheap_nail_salon_near_me_now.pdfIn PDF document text
    • http://gitamoravazini.22web.org/pathfinder_bestiary_6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367964/normal_5fa39715abd43.pdfIn PDF document text
    • https://cdn.sqhk.co/duburijudi/jb15zhh/kevolekur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuwarikufaz.epizy.com/23867513572.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_off0000de9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9B 5116 bytes
SHA-256: c6d6ac1885952a683845bb80125be28ce9ad1e743e667ad6eb393b2950477f7e
font_01_sfnt_off0000f036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF036 10808 bytes
SHA-256: 1343ba1c2cb727c2ed8de61e22f866528eb9188ede67e1e0a68dc6f69fde43e8