Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0ea56e780d25e60…

MALICIOUS

PDF

75.2 KB Created: 2021-03-17 10:40:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2b2d67911f4995bd20df2b3f0a31b9a0 SHA-1: 923c60454ce2931e8f68b6a3034e2e4f38017969 SHA-256: f0ea56e780d25e607124974e9abe0bb9cf3d2c429f731f83a37786070e0bcadc
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 0.9997

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://lozipotod.ru/strik?utm_term=best+sunday+night+spots+in+atlanta PDF link annotation
    • http://xuwurexem.22web.org/tom_clancys_the_division_2_3djuegos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453551/normal_5fe9035958252.pdfIn PDF document text
    • http://padigixatobezu.22web.org/free_fire_battleground_apk_revdl.pdfIn PDF document text
    • http://rivozuzeno.mywebcommunity.org/discrete_mathematical_structures_kolman_6th_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_5fda8236f13e2.pdfIn PDF document text
    • https://molawaxurot.weebly.com/uploads/1/3/4/6/134699933/4267772.pdfIn PDF document text
    • http://wotaxatumumodok.sportsontheweb.net/lelebexuzatijorak.pdfIn PDF document text
    • http://bosegabowatitup.iblogger.org/asphalt_8_game_for_android_mobile.pdfIn PDF document text
    • https://bunoworerut.weebly.com/uploads/1/3/1/4/131438217/bivojabobatesaxev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458163/normal_601480ee6ebb7.pdfIn PDF document text
    • https://nifipidege.weebly.com/uploads/1/3/4/6/134677229/d2ee6202.pdfIn PDF document text
    • http://dodajavux.scienceontheweb.net/cloud_atlas_synopsis_book.pdfIn PDF document text
    • https://renunuvejo.weebly.com/uploads/1/3/4/7/134710344/9249b64.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/98609180056.pdfIn PDF document text
    • http://tewimovonuwakag.rf.gd/suxirisorizozuferu.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/17651263190.pdfIn PDF document text
    • http://ramivigemotaf.epizy.com/84862044974.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/20202535001.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/dagewedetoge.pdfIn PDF document text
    • http://refuziw.epizy.com/sudafijutigegeroberup.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_off0000e8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DF 5276 bytes
SHA-256: 0ba399088b793bd2ec44b3c2de4a674d14e29234dc519fd7de099a36526befdb
font_01_sfnt_off0000fae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE0 10768 bytes
SHA-256: 889e6f9a6badf76a0297064bc0aafe058d6ec1fceb99b5bb6edf8dd2d1e90e53

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