Malicious PDF — malware analysis report

Static analysis result for SHA-256 5957465b73695f8d…

MALICIOUS

PDF

82.8 KB Created: 2021-03-16 01:38:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 5c551ba747958c6d544a787115a47e8a SHA-1: 4ac15e634497c5c79fda0c2c05b89d9c8b410a31 SHA-256: 5957465b73695f8d38d64b9dd21f23066df81b43278b27c01d14687498367912
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://xezojetit.ru/wix?keyword=as+per+your+request PDF link annotation
    • https://cdn.sqhk.co/naziwixolagu/ieqKhiO/latelegosasimudo.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/ahciaib/ahly_net_points.pdfIn PDF document text
    • http://kogemamumudun.22web.org/12b_rule_1_house.pdfIn PDF document text
    • http://zuduwamani.mypressonline.com/fatevevisozosuxomasu.pdfIn PDF document text
    • http://lazategomid.scienceontheweb.net/63851121050.pdfIn PDF document text
    • https://cdn.sqhk.co/totimujid/gggdts6/vozageris.pdfIn PDF document text
    • https://cdn.sqhk.co/zuzikewed/hXighjh/dub_stop_lyrics.pdfIn PDF document text
    • http://vazutokidoxe.iblogger.org/wireless-n_wifi_repeater_setup_instructions.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
    • https://uploads.strikinglycdn.com/files/e8384dd7-2093-4703-8928-7c90bc091954/bivip.pdfIn PDF document text
    • http://kuporalegumema.epizy.com/musica_ainda_ontem_chorei_de_saudade.pdfIn PDF document text
    • http://tinijev.epizy.com/govig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3cab1aa-defe-4d66-95bf-2e30976f9812/93241897743.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/brugge_walking_tour_map.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/fast_food_gluten_free_and_dairy_free.pdfIn PDF document text
    • http://renedutej.rf.gd/tidovilewazajule.pdfIn PDF document text
    • http://fidikaxano.myartsonline.com/26838097255.pdfIn PDF document text
    • http://bozivexaterem.epizy.com/active_listening_assessment.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/android-_tools-_adb_ubuntu_12._04.pdfIn PDF document text
    • http://zorogeloma.epizy.com/direct_deposit_form_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccc12f3b-de8b-4b8e-910c-c65bb607dcd0/yamaha_rx_v473_service_manual.pdfIn PDF document text
    • http://najubizep.epizy.com/will_my_harry_potter_wand_still_work.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EC 4516 bytes
SHA-256: 6bba9fa6dedba48747f4d0e939be09b3bba6540072338b5898bcc9653e996a29
font_01_sfnt_off0000f568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF568 10760 bytes
SHA-256: 6f2a927cb1a5a9d2ab13f165785f854089265a1f765ff900ba37b92a0a28be15
font_02_sfnt_off00011a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A37 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
font_03_sfnt_off00012f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F65 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e