Malicious PDF — malware analysis report

Static analysis result for SHA-256 658da61007195cf2…

MALICIOUS

PDF

94.1 KB Created: 2021-02-14 07:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b18cc4bf6466ec21ea3d2de3215de810 SHA-1: 1d73d3e8a8abc2fe15694f0f3c77441caec3dbf3 SHA-256: 658da61007195cf2936486c38ab545f71fe28d448bf56d3748d6a6c9763678d0
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 0.9998

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://baarspo.ru/wix?keyword=anita+blake+dead+ice+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369655/normal_601223dc60c5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373241/normal_5fd80cb389e44.pdfIn PDF document text
    • http://dirtygirl.fun/monica_her_story_bookdi2pv.pdfIn PDF document text
    • http://copyright-help-report.com/losevafojogalosolarimkqzx1.pdfIn PDF document text
    • http://qupieasy.online/kudimebuvewotakomawesutobtnfye.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/kalsifikasi_plasenta_adalahzvcg8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470830/normal_5fcfec20b3ee5.pdfIn PDF document text
    • http://cherrypimp.online/simcity_buildit_epic_building_guidetw89w.pdfIn PDF document text
    • http://axacheat4.xyz/1255948344142atr.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/balance_sheet_general_ledger_accountefxry.pdfIn PDF document text
    • http://dezlice.ru/running_princess_2_game_play_onlineytja5.pdfIn PDF document text
    • http://xtw2.club/torch_browser_mobile_apka77d0.pdfIn PDF document text
    • http://good-production18.site/access_google_sheets_from_pythonpr2x9.pdfIn PDF document text
    • https://wufipalowev.weebly.com/uploads/1/3/4/5/134595621/e6095b7408d0.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/povelenavuviw/adverbs_of_intensity_worksheets_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/sisume.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/77316373846.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/maxadetisop.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_off00013737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13737 5068 bytes
SHA-256: 1d049f74c641b8793fc6680d3d59c2fe65ce60fb6172931340adb84cc754a003
font_01_sfnt_off0001488a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1488A 10160 bytes
SHA-256: 25bc57674e98e1d446bc02d1288d1b86d8133b92ecc61fc5ba3aa38c2257b77c