Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4259a1e0e50c8cd…

MALICIOUS

PDF

75.1 KB Created: 2021-03-06 20:41:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 96a0726256b3dbef66a1b0a6b9b9e2e7 SHA-1: 206c36be8ca9f263c0a503f284a91db0bd7da1c7 SHA-256: d4259a1e0e50c8cdaa19dc897346c1e4855f170b503a0380c8931fdaf0829ed8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://seumenha.ru/strik?utm_term=whirlpool+ultimate+care+ii+washer+clean+drain+pump PDF link annotation
    • https://togimapobeno.weebly.com/uploads/1/3/4/6/134649298/notevijit_nuzorez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460706/normal_5fccf64de8e49.pdfIn PDF document text
    • https://dafizigupiteg.weebly.com/uploads/1/3/4/4/134492389/fenenudovone_dutokilumunor_xatolonezumen_naborerixu.pdfIn PDF document text
    • http://manthoughtswebsite.website/custom_dirt_bike_racing_shirtsd6izw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_6033722192030.pdfIn PDF document text
    • https://toxosujaduwo.weebly.com/uploads/1/3/0/8/130874389/bukun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369507/normal_600e776c2abe0.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/cygolite_hotshot_pro_150_usb_rechargeable_tail_lights.pdfIn PDF document text
    • https://nugivukowunel.weebly.com/uploads/1/3/4/0/134041243/6331264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391620/normal_603e754cb372b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378390/normal_5fca6bfc1ea33.pdfIn PDF document text
    • http://nisiwitas.22web.org/gumufa.pdfIn PDF document text
    • http://peluxuba.sportsontheweb.net/rakuteboxitepob.pdfIn PDF document text
    • http://erse.xyz/weperixijekusulijinusedindspd8.pdfIn PDF document text
    • https://lorufolirosob.weebly.com/uploads/1/3/4/5/134584190/1e2e43e8d.pdfIn PDF document text
    • https://zoxamadafipezo.weebly.com/uploads/1/3/1/1/131164297/xivikelupiboxagane.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/7953405.pdfIn PDF document text
    • https://zesalefol.weebly.com/uploads/1/3/5/9/135994098/nimodaduguv-veleludited-votakikibip-sazawetibikog.pdfIn PDF document text
    • https://vavinaxedekofew.weebly.com/uploads/1/3/0/9/130969509/vovud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jujodixawo.rf.gd/69649273358.pdfIn PDF document text
    • http://goxonigugabuso.epizy.com/63238493391.pdfIn PDF document text
    • http://gomugugagaf.onlinewebshop.net/mazzaroth_gospel_in_the_stars.pdfIn PDF document text
    • http://zotuxegusam.epizy.com/hungry_shark_evolution_game_uptodown.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE702 5420 bytes
SHA-256: f71d7f674d4766b8ed04c40acd5db40442b96e88d4e46f772578957adedb02b9
font_01_sfnt_off0000f952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF952 10588 bytes
SHA-256: 841a580bcb12a0042528f4f772c6db15c972f752c5703cf521b5f9338393ab60

Open this report in the interactive analyzer, or submit your own file for analysis.