Malicious PDF — malware analysis report

Static analysis result for SHA-256 c267f520372a6441…

MALICIOUS

PDF

83.6 KB Created: 2021-03-24 15:23:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bb1084eb80333a1682aae33e5fde11db SHA-1: 55d80c42062d1d1879fe4fe90d7d31707ff09fe1 SHA-256: c267f520372a644184d0bda0c740d9bd437d7f88b6fd2079ddb4a4d1eca13507
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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://leonvi.ru/award?keyword=enlaces+polares+y+no+polares+pdf PDF link annotation
    • http://foxinawolukomat.iblogger.org/lozenuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446029/normal_604854d51e8d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450746/normal_5fcd70768eb95.pdfIn PDF document text
    • http://bisokebe.22web.org/bulgarian_method_powerlifting_template.pdfIn PDF document text
    • http://visebadegu.iblogger.org/bebowobufubaberugagufud.pdfIn PDF document text
    • http://nejupike.mygamesonline.org/learning_to_write_arabic_letters.pdfIn PDF document text
    • http://wowezixuxaxu.22web.org/le_libralisme_communautaire.pdfIn PDF document text
    • http://nebumad.iblogger.org/what_are_good_hobby_ideas.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/32699448894.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/wilton_round_tip_sizes.pdfIn PDF document text
    • http://meroxisawifagu.mygamesonline.org/2001_dodge_dakota_sport_owners_manual.pdfIn PDF document text
    • http://sowopezamiw.medianewsonline.com/artemis_fowl_opal_deception_graphic_novel.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/wipotegadodorek/alexander_lenard_winnie_ille_pu.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/aflatoon_movie_720p.pdfIn PDF document text
    • http://batilirilalu.rf.gd/7733169862.pdfIn PDF document text
    • http://zefitog.epizy.com/new_york_times_puzzle_answers_sunday.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/arbitersports_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/modern_ballet_performances_new_york.pdfIn PDF document text
    • http://dikawixum.epizy.com/free_excel_business_dashboard_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/free_romeo_and_juliet_study_guide.pdfIn PDF document text
    • http://jiwerefupuz.epizy.com/power_outage_report_line.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/physically_handicapped_pension_application_form_in_telugu.pdfIn PDF document text
    • http://bifapekedareb.rf.gd/android_tv_box_bluetooth_keyboard_not_working.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_off000105df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105DF 5208 bytes
SHA-256: ff13bca326bab884eb111a2fe3c8d2e66b0877cf8b0bd75cf0f5b7978cddfb79
font_01_sfnt_off000117af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117AF 12820 bytes
SHA-256: 760ad2aa15d62271f0fc264f2efb9c9b279b205c264c92d22816e02845761e73