Malicious PDF — malware analysis report

Static analysis result for SHA-256 796cf367fe508f72…

MALICIOUS

PDF

77.5 KB Created: 2021-03-19 14:55:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6f55deb4c014a5c192f6a738a72f357a SHA-1: 2ec645c6be80377a700effd3474a207063d4f773 SHA-256: 796cf367fe508f7281b4683d27a4ff1a5d3570bf28a0e6262990ab6cb2c7a41c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/aws?utm_term=how+to+service+a+ge+water+softener PDF link annotation
    • http://kebuwakuje.medianewsonline.com/12479817799.pdfIn PDF document text
    • http://daritibule.iblogger.org/danby_designer_mini_fridge_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/Bhdhaxa/juventus_vs_ac_milan_live.pdfIn PDF document text
    • http://taribada.22web.org/2008_club_car_precedent_front_end_rebuild_kit.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/EGEhejc/leap_disney_song.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/aBkij4u/free_online_kid_games_no_download_required.pdfIn PDF document text
    • http://nibakelenixezas.getenjoyment.net/matricom_g-box_q2_setup.pdfIn PDF document text
    • http://defokozixeral.sportsontheweb.net/paris_bus_map_with_streets.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/run_on_sentence_worksheet_key.pdfIn PDF document text
    • https://cdn.sqhk.co/bevoroxur/idhzhjb/irctc_rail_connect_app_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vanakodezifezuv.epizy.com/r_markdown_report_tutorial.pdfIn PDF document text
    • http://weweladegop.rf.gd/sigigosopafedoxikej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c68112d-7925-46bf-9fb1-ed3acc3168ae/belutevire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/103a1bc4-62a1-4331-af4d-c3517f3d3ee6/39437034214.pdfIn PDF document text
    • http://werexixudi.rf.gd/tales_from_the_loop_episode_1_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e3d7ae4-13b9-40b3-8790-2f9c5d8cc5c1/95374167738.pdfIn PDF document text
    • http://sebefebopo.rf.gd/rexixazowu.pdfIn PDF document text
    • http://vuwozefadila.rf.gd/96560492532.pdfIn PDF document text
    • http://sajurewe.rf.gd/heart_pathology_mcq.pdfIn PDF document text
    • http://mowelafawugek.epizy.com/sudavikumapuva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1dbedd2-4924-4de1-8f50-dc0ac8a17ff1/what_do_the_myers_briggs_types_mean.pdfIn PDF document text
    • http://kevusej.epizy.com/47006988247.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/892b472e-643d-4dda-893c-163e54222ea0/wasuxojagoxaneto.pdfIn PDF document text
    • http://lufopudizomuv.atwebpages.com/what_are_the_centripetal_forces_that_united_the_kurds.pdfIn PDF document text
    • http://zegotora.rf.gd/28139882130.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_off0000f23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23F 5132 bytes
SHA-256: 1bb1d7e34c0b4a56860107f7e2e5355e15355009f043ddfa1ea8b46120869152
font_01_sfnt_off000103e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103E1 10728 bytes
SHA-256: fab0c1cea614faf0a3bbde601d20f078ee2194a92b0ef8c6c93c62e0268ca582

Open this report in the interactive analyzer, or submit your own file for analysis.