Malicious PDF — malware analysis report

Static analysis result for SHA-256 4476d7679f9c8ffa…

MALICIOUS

PDF

69.3 KB Created: 2021-03-03 07:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 6654a5901c0ac0ff21b7590a85fdee00 SHA-1: 8b4105b159819a2bd19e489172fc21487876c01f SHA-256: 4476d7679f9c8ffa4028eb39b83de7553099b32281b717c994dee96443ec2f3b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded URLs that lead to suspicious domains, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, references 'The lady or the tiger questions multiple choice', likely a lure to entice users to click on the embedded malicious links.

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://nipisod.ru/strik?utm_term=the+lady+or+the+tiger+questions+multiple+choice PDF link annotation
    • http://wumomotetidofe.getenjoyment.net/how_much_does_foster_care_pay_in_texas.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/deloxipopu.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/kiwarego.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/do_you_capitalize_professor_emerita.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/60162152576.pdfIn PDF document text
    • http://wotaxatumumodok.sportsontheweb.net/damubu.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/wenogazed.pdfIn PDF document text
    • https://cdn.sqhk.co/lemijexo/ihhfjgt/game_of_thrones_swords_names_and_owners.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/reterukujudumiri.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/neporezofov/angus_cattle_information.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/8154144058.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/lixalujesarejorok.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/23498615640.pdfIn PDF document text
    • http://tikomiwewo.atwebpages.com/rheem_rtgh-95dvln_code_11.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/54379028577.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/21252573452.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/shake_your_body_song.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/balejawikuvafejub.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/emulator_switch_apk.pdfIn PDF document text
    • http://molagegivijoxu.onlinewebshop.net/fitozata.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_off0000d19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19C 5664 bytes
SHA-256: 222291c226139726561062bb4bcaf4ecd6799a1efb4558e0913d1e8d66cedabf
font_01_sfnt_off0000e4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B9 10272 bytes
SHA-256: cc3150791fd13a763e6ae79620d4aa3e291aa6ac96282d81cd276eca4fe22b37

Open this report in the interactive analyzer, or submit your own file for analysis.