Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6efae1069894cf…

MALICIOUS

PDF

79.9 KB Created: 2021-04-15 13:53:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6618ee432c157ece2d54268809d9f371 SHA-1: 2ca1eb41756415885d0a7426e0b71d11234409f8 SHA-256: ad6efae1069894cf2e82fe73ddd0e6969bd013268a4827149b973733a5ea31bd
96 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Honda fourtrax 350 stock tire size' and embeds multiple URLs, one of which is flagged as suspicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it attempts to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/strik?utm_term=honda+fourtrax+350+stock+tire+size PDF link annotation
    • http://bisituz.sportsontheweb.net/92465302858.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_606e0e02644cd.pdfIn PDF document text
    • http://jajokojunewi.mypressonline.com/boolean_operations_on_objects_in_computer_graphics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448744/normal_604755bf99c85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_60126e9f496ff.pdfIn PDF document text
    • http://rojemop.iblogger.org/kalphite_queen_duo_guide_osrs.pdfIn PDF document text
    • http://bolipoloweda.mygamesonline.org/kukifuvopulovuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_603161091dfea.pdfIn PDF document text
    • http://modalidetefid.iblogger.org/weather_report_today_bandipur.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/tobobowu/painting_wood_cabinets_grey.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/nice_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/muscular_system_worksheet_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/468c4f70-b03d-4f41-a7b8-b292c98ae211/how_to_write_a_comparative_analysis_example.pdfIn PDF document text
    • http://jifusewu.epizy.com/mirajerosasisiguminufa.pdfIn PDF document text
    • http://kawojimulogizef.rf.gd/english_verbs_synonyms_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d34043c-c5cf-4627-b1c4-776350ba3379/61629914501.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/project_almanac_full_movie_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/211471e5-bdb1-443d-9aae-29e59c32d58a/adobe_premiere_pro_2020_download_free_full_version_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/twisted_treeline_ranked_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/th_tc_xin_cp_co_form_ak.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/nubozawegu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC1 2960 bytes
SHA-256: d8ef148c594adba1946aa7d95f188f3f33f69c77bc22762a1a4a57bcfd89a796
font_01_sfnt_off0000f743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF743 5556 bytes
SHA-256: fdc3d624e395338db57ac04435203d9fd1584ae292e4baa9bad51032affcb7d5
font_02_sfnt_off00010a48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A48 12332 bytes
SHA-256: 03d8a8efc07c0d3c74aac5eeeec0d0471ac097a61be9a8cdeb0e738493824be2