Malicious PDF — malware analysis report

Static analysis result for SHA-256 102360a679f5c4b3…

MALICIOUS

PDF

81.5 KB Created: 2021-03-24 22:03:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 45716009f8cace347dcec6c36303affb SHA-1: 982b457c63ce78c8d51bed980c1a95fb19c7d448 SHA-256: 102360a679f5c4b36698adf21d0aa86d1c1cdcee4bcc92ab33a6890c1a63ed6a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains an embedded URI pointing to a suspicious domain, 'jacksth.ru', which is likely used to host malicious content or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'guide', aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/123?utm_term=neptunia+rebirth+2+shares+guide PDF link annotation
    • https://cdn.sqhk.co/feduvefas/NCaQiga/lyrical_video_status_maker_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/komiburufezo/jijif2u/dbfz_android_16_theme.pdfIn PDF document text
    • https://cdn.sqhk.co/ferobisuw/fkdhf7V/junewirusofugugiriwete.pdfIn PDF document text
    • https://cdn.sqhk.co/vofepubot/lgihdAT/auto_views_instagram_free_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/igficgf/kufomewufawoxunawilobu.pdfIn PDF document text
    • https://cdn.sqhk.co/ruduligived/NSuheQE/marshmello_tyga_chris_brown_light_it_up_lyrics.pdfIn PDF document text
    • http://kosolamod.22web.org/this_book_is_gay_read_online.pdfIn PDF document text
    • https://cdn.sqhk.co/jegivoziba/hchgja2/smash_bros_melee_gamecube_controls.pdfIn PDF document text
    • https://cdn.sqhk.co/zopizote/jcjeXjh/stickman_shooting_action_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sizafutito/bu7jiOB/rome_total_war_barbarian_invasion_factions_units.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/YGX1ibC/vigosir.pdfIn PDF document text
    • https://cdn.sqhk.co/kamavedes/jaNheie/61734377792.pdfIn PDF document text
    • https://cdn.sqhk.co/kojivitew/jtqyREB/answering_the_call_of_love_jason_shelton.pdfIn PDF document text
    • https://cdn.sqhk.co/mubasetopagu/NchjTgi/bazuzebulunojorini.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/iegd175/detekejifidojip.pdfIn PDF document text
    • http://ribavid.medianewsonline.com/82596383486.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://rarobodosonul.rf.gd/500_verbos_irregulares_en_ingles_y_espaol.pdfIn PDF document text
    • http://mapixuxiloko.epizy.com/bella_ciao_piano_sheet_music.pdfIn PDF document text
    • http://xinasewaja.epizy.com/transformation_chimique_et_physique_exercices.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/healthy_smoothie_recipes_with_kale_and_spinach.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF240 5200 bytes
SHA-256: 5a567c8da30dd58518f67b717d7f2e2a84a762f3e48bbf820f5e694ab4597ebd
font_01_sfnt_off000103d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D3 11572 bytes
SHA-256: e192c25159ca74f737313da4b4a0c4887f6c4dc6440d80cee594860168098e78
font_02_sfnt_off00012ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AC9 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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