Malicious PDF — malware analysis report

Static analysis result for SHA-256 c57f009c890a951a…

MALICIOUS

PDF

81.5 KB Created: 2021-04-05 03:01:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3698e789f422bd19d6250a0e280f0419 SHA-1: 10f831053db408f8153daf7285758a850e02d8ff SHA-256: c57f009c890a951a7711b1c43c27b602fdbb545dd7a98494f7e2497c63c1c503
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=what+size+wiper+blades+do+i+need In PDF document text
    • https://cdn.sqhk.co/rexixugepir/YsI4icF/kulajejari.pdfIn PDF document text
    • https://cdn.sqhk.co/kominepoli/ijc2hfO/don_t_talk_back_to_your_parents.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/fa6jaJD/the_shadow_sun_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/nokowifupe/bVqDYl4/panda_run_subway_panda_endless_running.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/fEihCNe/50631461515.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/QZhbgfC/stacker_2_diet_pills_with_ephedra.pdfIn PDF document text
    • http://degifutuv.scienceontheweb.net/kisaxab.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/vuzatefeziwexaxisime.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/jd8jfil/action_for_2-_4_players.pdfIn PDF document text
    • https://cdn.sqhk.co/kevekelobivo/McjfV7w/vadifamo.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/how_to_change_the_belt_in_a_shark_navigator.pdfIn PDF document text
    • https://cdn.sqhk.co/nisikevepoxi/EgfhcA8/building_guide_mod_minecraft.pdfIn PDF document text
    • https://cdn.sqhk.co/barosevarega/m8UgFie/video_call_ringtone_app.pdfIn PDF document text
    • https://cdn.sqhk.co/pifajaloro/i2jbLby/knife_hit_mod_apk_vip.pdfIn PDF document text
    • https://cdn.sqhk.co/talokelom/S3jbgfE/1767984382.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/dMNjgcL/gomawajazebigis.pdfIn PDF document text
    • https://cdn.sqhk.co/rojozedofaf/jhf4jh1/brochure_creation_software_free.pdfIn PDF document text
    • http://manapuzasupin.sportsontheweb.net/anormal_significado.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/akeheii/dututesadixapa.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/hjnjfhj/16675650715.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xefejevife/zubasujekanujegozadof.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/ipcc_report_on_land.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/what_do_you_give_your_godson_for_his_baptism.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/what_to_say_about_your_background_in_an_interview.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/kingdom_of_the_wicked_book_two_release_date.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10111 5344 bytes
SHA-256: 74dac2569669883ff4dd10b85c701fc1d17a1bca80f6fc0280d7f9f119816902
font_01_sfnt_off0001134c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1134C 10896 bytes
SHA-256: a56c5eebc9be3eaefd7e9732353b259bddc4620fd7e8dbe19e8660e5aa35c548

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