Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f7ae84ea8c20f51…

MALICIOUS

PDF

68.8 KB Created: 2021-02-28 21:24:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f5527ccb99a7c0f5f5964ebe4b64a878 SHA-1: 9a067ca2658843bcb6d4a616ad44429841fe92de SHA-256: 7f7ae84ea8c20f512d4c66826b414dea67d57b938a67a1d7649a577998b6f9b3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=critical+thinking+skills+ppt PDF link annotation
    • http://dovulup.iblogger.org/35761639233.pdfIn PDF document text
    • http://lagujegivupani.22web.org/cheat_engine_android_remote_ip.pdfIn PDF document text
    • http://gunudatur.22web.org/62792536230.pdfIn PDF document text
    • https://gomadiwisedewun.weebly.com/uploads/1/3/5/3/135314557/3045436.pdfIn PDF document text
    • http://remontlegko.info/rutifaluvogud9vk0m.pdfIn PDF document text
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/xekevukasixapabije.pdfIn PDF document text
    • http://towajemikof.iblogger.org/criterios_de_asfixia_neonatal.pdfIn PDF document text
    • http://trylait.club/97750180681gn1f8.pdfIn PDF document text
    • https://metiledozixav.weebly.com/uploads/1/3/1/1/131164016/2b92636f.pdfIn PDF document text
    • http://setiwevosina.22web.org/maharshi_audio_songs_telugu_2019.pdfIn PDF document text
    • https://dubamuxurel.weebly.com/uploads/1/3/4/4/134463085/5c0b3be4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://komeraja.epizy.com/8939288133.pdfIn PDF document text
    • http://bususetut.epizy.com/2018_games_pc_free.pdfIn PDF document text
    • http://tagitefidunun.epizy.com/28277675652.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/ameisensure_vereinfachte_strukturformel.pdfIn PDF document text
    • http://vulemeke.rf.gd/sabertooth_x79_memory_support.pdfIn PDF document text
    • http://livunus.rf.gd/samsung_nx300_camera_update.pdfIn PDF document text
    • http://legofovivaxom.epizy.com/budawe.pdfIn PDF document text
    • http://rexagoxew.epizy.com/grammar_lessons_for_high_school.pdfIn PDF document text
    • http://zaximibirada.epizy.com/comparative_vertebrate_anatomy_worksheet_answers.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_off0000d1be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BE 5164 bytes
SHA-256: 63b61589df797a8431412ed45843dbd0a487c9b0d5bdd327dcd03f06937b3801
font_01_sfnt_off0000e348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE348 10452 bytes
SHA-256: d3facb01707820237a4387763bac9a6016c6647683dab61f3c40d0ca5c428b44