Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e059466fba9ed90…

MALICIOUS

PDF

80.4 KB Created: 2021-03-19 12:48:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 697bf85d87ea898e843e48978c396728 SHA-1: 5a63d2b065868d3c82f7bb1a901967d065bd1124 SHA-256: 0e059466fba9ed90e21c4ebf7cf9e8646e6b014ebc1cdfa1009cb20c57fb6962
126 Risk Score

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 0.9994

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://baarspo.ru/wix?keyword=total+drama+world+tour+new+characters PDF link annotation
    • https://cdn.sqhk.co/nivurerazusa/gejdhg9/barbie_dreamhouse_adventures_house_blueprints.pdfIn PDF document text
    • http://mokemowowove.mygamesonline.org/cuantos_mililitros_son_20_gramos.pdfIn PDF document text
    • http://rezubodojel.medianewsonline.com/cartesian_dualism_mind_body.pdfIn PDF document text
    • http://leledup.mypressonline.com/carreras_universidad_del_valle_buga.pdfIn PDF document text
    • http://pubgmobiie.com/que_son_los_organismos_geneticamente_modificadosesrk4.pdfIn PDF document text
    • http://trokot-shtorki.online/beelzebub_season_2_meownime52qs2.pdfIn PDF document text
    • http://fuwijumazawad.mywebcommunity.org/sibisumuvususojokawa.pdfIn PDF document text
    • http://zugugalepew.mypressonline.com/repufepef.pdfIn PDF document text
    • http://hempmap.ru/3772900665mklso.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/how_to_replace_whirlpool_water_filter_2.pdfIn PDF document text
    • http://bred-enligne.com/171709811369s4w3.pdfIn PDF document text
    • https://cdn.sqhk.co/gevanadu/fgeCOib/hamster_life_game_mod.pdfIn PDF document text
    • http://easybranding.org/what_order_is_50_shades_of_grey_trilogy47ti4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://48e6b720-b653-4920-beb0-7ef171ab6ab9.filesusr.com/ugd/d9d1f5_67520ea13e144684885a9a4939c8bd59.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/podadigibujebula.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/blood_money_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/tixudebufowelomo.pdfIn PDF document text
    • https://aa514bbb-a96e-4bc9-8ff3-0ca2edd1104f.filesusr.com/ugd/3fc21f_e39c231d49e3451f8829a57c8fb86794.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/premature_ovarian_failure_nice_guidelines.pdfIn PDF document text
    • https://8c56b32b-3398-45d6-9c0b-b55146621f16.filesusr.com/ugd/6924eb_7d7ce1506adb4c45a255bc7866bea664.pdf?index=trueIn PDF document text
    • http://pimimozoji.myartsonline.com/education_alternative__madagascar.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/que_significa_cuando_sueas_que_tu_mama_se_muere.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/79078099673.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_off0000fd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD76 5220 bytes
SHA-256: f39241d65925576498131d4d23e97111cd035e18bed79a8ab7e49ba201e66a2e
font_01_sfnt_off00010f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F1A 11208 bytes
SHA-256: 8b5abe9734560c81a6924ff9407791f95e5cc3824da405b6eaefba1648beba80

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