Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd58ace0cb627e9…

MALICIOUS

PDF

72.8 KB Created: 2021-03-06 03:17:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6225e3e2f6defeb50afde627f95b1432 SHA-1: 324c5b4e4e119029ea73bad2314a826807f39c20 SHA-256: 5cd58ace0cb627e91611182551a4e82e8807988194d9a997aa6fe3798a260276
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://botokaw.ru/award?keyword=kerbal+space+program+free+trial PDF link annotation
    • https://nevipezuke.weebly.com/uploads/1/3/4/6/134652321/23bf2df2.pdfIn PDF document text
    • http://vowufijetapiko.sportsontheweb.net/franz_kafka_short_stories_amazon.pdfIn PDF document text
    • https://wisatevifo.weebly.com/uploads/1/3/0/7/130775851/futemen.pdfIn PDF document text
    • https://lefilima.weebly.com/uploads/1/3/0/7/130775934/farowarajikasidet.pdfIn PDF document text
    • http://vizazovabula.mywebcommunity.org/serulozujisim.pdfIn PDF document text
    • http://myfirstsite.xyz/480952302671z9c3.pdfIn PDF document text
    • http://marketeuro.pro/tefal_pressure_cooker_error_24ofin2.pdfIn PDF document text
    • https://wevenakexeg.weebly.com/uploads/1/3/1/4/131438808/fizuset.pdfIn PDF document text
    • https://nisofopirumo.weebly.com/uploads/1/3/4/4/134478351/4d37afe3f14db.pdfIn PDF document text
    • https://duxudalo.weebly.com/uploads/1/3/4/8/134866109/xizotupek_pameva.pdfIn PDF document text
    • https://vazanekufom.weebly.com/uploads/1/3/5/3/135322674/kezabepuwax.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/84837724446.pdfIn PDF document text
    • http://beramomu.22web.org/tezate.pdfIn PDF document text
    • https://leresidatebij.weebly.com/uploads/1/3/0/7/130776374/zudotegokuruxed_bexijapan_wabapotofavadol_kotegika.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_83146e3908f54033b8decff2f12b8733.pdf?index=trueIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/13313412164.pdfIn PDF document text
    • https://cc652f91-b1ab-470c-b36f-46d838ef85b2.filesusr.com/ugd/fbccce_7cbb8ecd250a4f2192141de55a43108c.pdf?index=trueIn PDF document text
    • http://vekejuf.atwebpages.com/how_to_train_your_dragon_dvd_release_date.pdfIn PDF document text
    • http://gedesopow.rf.gd/lanepelakogupela.pdfIn PDF document text
    • https://1ebfeea1-7d02-43b8-8f0a-002c87bc7f75.filesusr.com/ugd/50dcf6_318554a7b3b242418aa0c3cb03b0db1b.pdf?index=trueIn PDF document text
    • https://6acf0ca1-aa41-4771-8b91-54baff69ee7f.filesusr.com/ugd/7d1dc9_f937590f7a504055a870316c427299c8.pdf?index=trueIn PDF document text
    • https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_193a0ad1b3064a1abf1b107245b7cd84.pdf?index=trueIn 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_off0000dfb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB0 5444 bytes
SHA-256: a8617b804088ffb9fb2150b1886f6a7050b88b8486525806afd23c8078d818cb
font_01_sfnt_off0000f223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF223 10388 bytes
SHA-256: 1cfdc78ede7020c7d86419668a72f5413ad26ec8e8b169c7796e949bca90e3a3

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