Malicious PDF — malware analysis report

Static analysis result for SHA-256 a345f9807ddd5a92…

MALICIOUS

PDF

76.4 KB Created: 2021-02-25 11:03:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f43bff4268d045fe73568f82915a4e13 SHA-1: 0ee3e1332a249f2e6218c4a09602c375c6c66777 SHA-256: a345f9807ddd5a92e0f057c5eb50a4e9e63b7102b1b55ebe1484d2dc80b127c1
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/award?keyword=graco+trax+jogger+click+connect+stroller+nyc+reviews PDF link annotation
    • https://cdn.sqhk.co/jirudumom/dJyicjj/45789912975.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/yidoCjg/air_traffic_controller_jobs_colorado.pdfIn PDF document text
    • https://cdn.sqhk.co/gagobuniponi/tic4hjc/beat_the_boss_2_17_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/gihJUxx/belirifozudoxi.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/jdjgaea/vibuv.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/iheombw/brake_to_die_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/9g0gjjj/jumping_horse_racing_simulator_pc_game.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/hjahin0/jiveterikavowileguvan.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/xGibLgi/92137159662.pdfIn PDF document text
    • http://igbusinessabouthelp.com/3427740556mutfx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jonegukum.epizy.com/overtime_request_forms.pdfIn PDF document text
    • http://wofaketizezoja.epizy.com/49166905628.pdfIn PDF document text
    • http://dulijamepor.epizy.com/20497589506.pdfIn PDF document text
    • http://fiwemigusa.rf.gd/rpg_mod_apk_android_1.pdfIn PDF document text
    • http://faperolakaf.rf.gd/2429327512.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_off0000eec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC1 5460 bytes
SHA-256: d344d87bdaa542773628684b96fa6b6c5c36d433952ee96be86929b511b223ad
font_01_sfnt_off00010188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10188 10240 bytes
SHA-256: adccdb51709b00c3632198d43db810726b8de403a5b4612385af8f5b03a39851