Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b9fe2ae2a89bddb…

MALICIOUS

PDF

79.6 KB Created: 2021-03-18 11:14:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b5497ddf6ba7096bd8b87b9725bd2ee6 SHA-1: 29d773f14f85b0921a0b38dea06de2f827d3458a SHA-256: 9b9fe2ae2a89bddbeaba7a56132ff033c83f01d6f06ddc3eeaead0bbc9168910
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, and contains numerous embedded URLs. One prominent URL, 'https://soxebez.ru/strik?utm_term=sims+4+december+patch+broken+mods', suggests a lure related to Sims 4 mods. The PDF also exhibits characteristics of a link farm on disposable hosting, indicating a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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://soxebez.ru/strik?utm_term=sims+4+december+patch+broken+mods PDF link annotation
    • http://nunesop.scienceontheweb.net/marketing_project_file.pdfIn PDF document text
    • http://mini-cam-v2.club/2005_honda_odyssey_transmission_problemszaapp.pdfIn PDF document text
    • http://izzzaaa.space/vemojejamedas4zrd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480728/normal_601d545408dee.pdfIn PDF document text
    • https://cdn.sqhk.co/xonizarisu/hiCifSG/billie_eilish_hd_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxarabo/YZMjaja/stomach_ache_from_ibs.pdfIn PDF document text
    • http://bitalotava.scienceontheweb.net/benin_map.pdfIn PDF document text
    • http://thrivewebs.com/xanodedaradali5lhor.pdfIn PDF document text
    • http://flowerport.market/tres_metros_sobre_el_cielo_3_resumenw0umo.pdfIn PDF document text
    • http://copyright-helps-team.com/birmingham_airport_arrivals_live_information2cxuo.pdfIn PDF document text
    • https://cdn.sqhk.co/vafegijateno/ihjhGjc/ignite_classic_slots.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419437/normal_6013b61d78954.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/51045202787rpaw0.pdfIn PDF document text
    • http://lovepositions.info/79428546349oqw7w.pdfIn PDF document text
    • http://study-english-02.space/xetiwoftr3nq.pdfIn PDF document text
    • http://pagavopalubutu.scienceontheweb.net/cattle_production_business_plan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421614/normal_5fdb245b8ce9c.pdfIn PDF document text
    • https://cdn.sqhk.co/razefudixid/dDJ8hff/63111735543.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lixugafepujijoj.onlinewebshop.net/43671585747.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aa56ba5-1aeb-4ee7-a843-a345284856de/78184532248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b63f0736-6915-4519-be59-780d6845c0c6/pinapajilasazavaborul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8dcb799-9f6d-499b-82e9-22c7b7f7b11f/paslode_f350s_wont_fire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d25e43af-0ac1-4952-8143-8f676492a143/98972284690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b52dfb65-a096-45b4-ad07-06d9967608bb/honda_express_sri_utama.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_off0000f4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C5 5676 bytes
SHA-256: 486d01a8a15cd781122d61029a40317f49cdeaa1ca0422969a5a47eddf9d24ef
font_01_sfnt_off000107e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E1 11444 bytes
SHA-256: 710061d0964ac1c03c32f236f2e1645d0292c741998a87bdf315b02e40250a2b

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