Malicious PDF — malware analysis report

Static analysis result for SHA-256 8021db21faf46590…

MALICIOUS

PDF

82.0 KB Created: 2021-03-25 11:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: a84da2a99f6c3aa161f82ec912d4e70a SHA-1: 6ac65c3d9e3264d3a67495bc077a341a91f95a32 SHA-256: 8021db21faf4659090268ea781dd99729c225912e32b4369a755cbac51a8edc5
96 Risk Score

Malware Insights

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

The PDF file contains a URL that appears to be a phishing lure, disguised as a search result for a specific product. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://dugedepap.ru/strik?utm_term=rca+universal+remote+code+for+sony+blu+ray+player PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4500668/normal_60472fd2b5306.pdfIn PDF document text
    • http://marketitaly.info/tokyo_ghoul_episode_1_english_sub_youtubebg7fy.pdfIn PDF document text
    • http://setlyb.online/redupobizijadinao9p2v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484997/normal_5fda0e2a1a56a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425484/normal_5fc71e1071305.pdfIn PDF document text
    • http://uablog.website/crazy_rich_asians_movie_onlinevhmbq.pdfIn PDF document text
    • http://eeeeeyyy.space/mironufebonejerorigilusw69a5.pdfIn PDF document text
    • http://alsamcctv.com/1630219124465to1.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://s3.amazonaws.com/zufojadibi/25319994661.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/vosemavurabuzedu.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/87699174067.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/nunekuligota.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/connect_android_device_to_chrome_dev_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/72199962504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/202de52e-9454-4f6e-acbe-13a6e7330577/bosch_300_dishwasher_installation_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/776f8b28-fa06-4369-b8ad-b2e0bed5d9d7/sevumep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad0c9c7f-8525-4123-a748-a0935d111159/sportspower_trampoline_reviews_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/dichotomous_key_insects_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1896fa98-af80-480d-a83b-5e4e21788f80/craftsman_315_keypad_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/mr._coffee_bvmc-sjx33gt_coffee_maker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31221e3e-5ce0-4304-98a5-d789cd76101d/tojaposapimezajuxula.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/teori_urbanisasi_menurut_para_ahli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72d5b8b3-d538-4aa5-a34c-a2f3b6340873/fun_creative_writing_activities_high_school.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/82478302496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cc796bf-9c4a-4470-89fc-602f4903a4b2/xebimupewowid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c93c4a71-2918-4b6a-ad77-d8853ee6d1b7/irregular_verbs_list_in_spanish.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_off0000f4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D3 5492 bytes
SHA-256: 067238055e1a8aec0a686ceacebb030036cb3619e2645edeb0c85c39732551f3
font_01_sfnt_off0001076a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1076A 10500 bytes
SHA-256: 61b88aabda487591359ca6cfb896e193f8b04e8185269ece97667a42a097c272
font_02_sfnt_off00012b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B6D 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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