Malicious PDF — malware analysis report

Static analysis result for SHA-256 689fac2ca5165385…

MALICIOUS

PDF

81.2 KB Created: 2021-02-25 18:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1f33470d97d314b312c4a90ab872c24a SHA-1: 3680140bac93290cb102a7de47a3f8eb6a3e4b4c SHA-256: 689fac2ca5165385f40fe6ccba42cb53e958325bdcc9d3ef6acad373984f01dd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/award?keyword=dog+man+and+cat+kid+full+book+read+aloud PDF link annotation
    • http://kojewotezigu.iblogger.org/35828731177.pdfIn PDF document text
    • https://wamonudikiso.weebly.com/uploads/1/3/0/7/130776885/rowejitadexu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444356/normal_60000fbbafa2c.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzededoz/aigdQhi/ballroom_dancing_silhouette_gif.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/juporo_xusodusexason_visegijibobapa.pdfIn PDF document text
    • https://cdn.sqhk.co/gizapakoni/phhKHwj/black_desert_mobile_best_class_awakening.pdfIn PDF document text
    • https://cdn.sqhk.co/nodujugebi/icKdjfL/xfinity_stream_beta_not_working_on_samsung_tv.pdfIn PDF document text
    • https://vepodiruwa.weebly.com/uploads/1/3/4/3/134374194/kelolulozoxenolad.pdfIn PDF document text
    • https://jotulamopusojo.weebly.com/uploads/1/3/4/4/134465369/kijojurenakox.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/WYTrBxD/bedoyecta_inyecciones_en_mexico.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sevuvev.epizy.com/captain_phillips_full_movie_filmyzilla.pdfIn PDF document text
    • http://ximitexus.epizy.com/phones_under_android_one_program.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/bujameri.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/absolver_downfall_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/weather_report_today_doncaster.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_off000101e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E6 5368 bytes
SHA-256: 2fb604ef55c4b471bf2772d02b83132b511a0908bc544a04985d75570e618b95
font_01_sfnt_off0001141d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1141D 10440 bytes
SHA-256: 5ef553dfa9b487af480eeb72acdad918d9ef14beb0c9a35b291a579ad429a0c1