Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c61b9cc38035ed9…

MALICIOUS

PDF

75.9 KB Created: 2021-02-26 19:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cb8cb51c65b51bacaa33fa0b32480f6b SHA-1: 56672c2252b446bea2270e684234c4279f5f08be SHA-256: 2c61b9cc38035ed9b5c7f7659a9ed9f3ef0dd441f61c3b840e8a43b07c6a145e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/award?keyword=dell+laptop+latitude+e6410+specifications PDF link annotation
    • https://cdn.sqhk.co/rowemarul/jntvQ9E/lowobegulodefizaravob.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/hbiepbF/drop_dead_gorgeous_rebecca_death.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/YgeBjcf/cross_stitch_kings_mall_gujranwala.pdfIn PDF document text
    • http://argo-tourism.com/rizuwemidatam3w.pdfIn PDF document text
    • http://covid-19online.site/chapters_interactive_stories_unlimited_diamonds_apkfhv7n.pdfIn PDF document text
    • https://lewisenoj.weebly.com/uploads/1/3/0/9/130969481/232b840bf36b703.pdfIn PDF document text
    • http://bigtittybella.com/piluxitefenesabatrr.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/gjjp9hj/bbq_near_me_open_for_dine_in.pdfIn PDF document text
    • http://gprofights.ru/excelsior_springs_mo_school_district_map4k0ws.pdfIn PDF document text
    • http://avto-document.site/73820696341775ww.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/xeropizuwe/93784550222.pdfIn PDF document text
    • http://wejivitekep.epizy.com/xininofoseso.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/3898866202.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/fepak.pdfIn PDF document text
    • http://malanawojuko.epizy.com/38133172751.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_off0000ebda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBDA 5488 bytes
SHA-256: 5316a0fdce800e94c939baf07ffa902bbf0abcc75c24f5107960f564992146a8
font_01_sfnt_off0000feae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAE 10568 bytes
SHA-256: 8bf2c5fd17895cf633110d9dd2845fc6914a7408fd3b79b8a3eed8a4baf50295