Malicious PDF — malware analysis report

Static analysis result for SHA-256 44ad5ea2e33e1736…

MALICIOUS

PDF

76.2 KB Created: 2021-02-11 23:21:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 17ac905fc43e786a4d0de65e8a3e93e9 SHA-1: 1de54da430cb6a37b0812c5742f9f09d96f607f6 SHA-256: 44ad5ea2e33e17363940d44a44d56a9c27915c2589abffc4bb87718092bde526
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://druttle.ru/wb?keyword=candy%20crush%20mod%20apk%20android PDF link annotation
    • http://rijupoxog.22web.org/free_powerpoint_templates_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449974/normal_602221cad7670.pdfIn PDF document text
    • https://midodelawipage.weebly.com/uploads/1/3/4/5/134585137/fafojikoruzuxak-ginoruferigaro-vagame-dimavoxo.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/rv3Ujjl/ms_pac_man_ghost_names.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390637/normal_6002dbe9a2262.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415543/normal_5fddf850b9b1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416928/normal_5fd85f02ea1d5.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/jihXgjc/bubble_hero_2_pc_game_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dapalufited/SbjghiF/kekanisegudo.pdfIn PDF document text
    • https://bafexobis.weebly.com/uploads/1/3/4/0/134041027/mudovavo.pdfIn PDF document text
    • https://tozikogok.weebly.com/uploads/1/3/5/3/135330875/1348887.pdfIn PDF document text
    • http://nizuloxodiza.iblogger.org/boutonniere_deformity_ra.pdfIn PDF document text
    • http://*********/wp-content/uploads/2019/03/Candy-Crush-Saga-mod-apk.jpgIn PDF document text
    • http://***********/wp-content/uploads/2019/03/Candy-Crush-Saga-mod-apk-2.jpgIn PDF document text
    • https://********/candy-crush-saga-mod-full-money-moi-nhat/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wibekemuxeni.epizy.com/l_adjectif_qualificatif_pithte_exercices.pdfIn PDF document text
    • http://piwirapofo.epizy.com/jingle_bell_rock_line_dance_step_sheet.pdfIn PDF document text
    • http://kaxemazetoralib.rf.gd/xigarusuku.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_off0000e972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE972 5352 bytes
SHA-256: d724a0ce09b917c2a9ef5b7a9580ae28ffe393970fd63ff8fe102b3c2e3af0d7
font_01_sfnt_off0000fb80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB80 13568 bytes
SHA-256: b858fe4a0eb7dee38731a8607200c2701690dcfa41e9e01fd1be8f4fb0389b98