Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1be33b9ff7b253…

MALICIOUS

PDF

74.9 KB Created: 2021-02-24 01:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 436613547bfbd865660fc03189dc173e SHA-1: f59d8b8bc7771ff885beb6e694e9cdd0ba1d4197 SHA-256: 5a1be33b9ff7b2532ea3d58eadd23f7c62c3693d738be9f3afb2b2579daf177e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://kepijiloxa.weebly.com/uploads/1/3/4/1/134108658/xugizotaza-lesagezujofajuz-zowuzajigoso-kivezofo.pdf In PDF document text
    • https://litirovedogamat.weebly.com/uploads/1/3/5/3/135393382/ee69e3c1890.pdfIn PDF document text
    • https://disovipogazita.weebly.com/uploads/1/3/1/3/131398104/metegu-kidunuwared-tivutase-xiluxama.pdfIn PDF document text
    • https://jefaganogebe.weebly.com/uploads/1/3/1/4/131437435/zulubal_lusox_perurebaje_gugowedas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460460/normal_5fc8fd0105f28.pdfIn PDF document text
    • https://magapevalapa.weebly.com/uploads/1/3/0/8/130874167/0903f1ad58.pdfIn PDF document text
    • https://bekiwoxutoga.weebly.com/uploads/1/3/2/7/132712348/lejurogajujakojav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481539/normal_601dc83eb3f01.pdfIn PDF document text
    • https://fitatopiwize.weebly.com/uploads/1/3/0/7/130739398/256168.pdfIn PDF document text
    • http://telewapor.22web.org/ramabai_bhimrao_ambedkar_hd_movie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420911/normal_6030e743d931f.pdfIn PDF document text
    • https://gojufepegaxop.weebly.com/uploads/1/3/4/3/134339744/2762548.pdfIn PDF document text
    • https://wozepunelom.weebly.com/uploads/1/3/5/9/135993859/986485483.pdfIn PDF document text
    • https://peworiwuka.weebly.com/uploads/1/3/4/6/134693567/7105695.pdfIn PDF document text
    • https://maypoin.ru/wb?keyword=kinemaster%20pro%20for%20pc%20windowsPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jipinasin.epizy.com/16154275622.pdfIn PDF document text
    • http://mipuxezodovepe.rf.gd/crime_and_punishment_middle_ages_powerpoint.pdfIn PDF document text
    • http://vufigenetusanu.epizy.com/android_games_online_rpg.pdfIn PDF document text
    • http://bizebiza.rf.gd/burying_the_ex_full_movie.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_off0000e637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE637 6016 bytes
SHA-256: 5dc3c674abed27019e801af1642093c274594aac8fb9b9b4813e51f9cc582bd4
font_01_sfnt_off0000fad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD1 10348 bytes
SHA-256: 98f2f6b34c6e6498e462c7ca2dc519a69a39da0e41070ae53d7083b411fa1b3d