Malicious PDF — malware analysis report

Static analysis result for SHA-256 712d0b552c556b16…

MALICIOUS

PDF

69.3 KB Created: 2021-03-10 02:22:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 438aa15a0721f1eabc7aa71d2b005aed SHA-1: ffdb8145469ad04346331a9cf8c94052213683e5 SHA-256: 712d0b552c556b16697900cc58ac5bf9a66651c20d6a4a3535d859bcb870fce8
94 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'mezovuduw.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely used as a lure for initial access.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8093

Heuristics 3

  • 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
  • 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://mezovuduw.ru/award?keyword=boat+bill+of+sale+template+free+pdf PDF link annotation
    • https://wunovolal.weebly.com/uploads/1/3/5/3/135311751/foredabu.pdfIn PDF document text
    • http://fukerijinexin.mygamesonline.org/fazatujita.pdfIn PDF document text
    • http://modalidetefid.iblogger.org/71009850317.pdfIn PDF document text
    • https://jematujevuzonip.weebly.com/uploads/1/3/4/2/134235480/5dc59afac1305.pdfIn PDF document text
    • https://dalupapixoriwu.weebly.com/uploads/1/3/1/4/131438121/02323b6a.pdfIn PDF document text
    • https://liruviwogaralo.weebly.com/uploads/1/3/0/7/130776788/beguvesevenutep.pdfIn PDF document text
    • http://durikudu.iblogger.org/list_of_functional_groups_in_organic_chemistry.pdfIn PDF document text
    • http://bifakibebus.iblogger.org/eagles_wasted_time_lyrics_meaning.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccb7fbb2-d8b6-455a-a792-146a896ff960/51873193461.pdfIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/latest_android_version_samsung_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13e4b4bf-541d-4c87-b526-61a899e0a406/40742719400.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/flight_pilot_simulator_3d_apk_full.pdfIn PDF document text
    • http://zatejufeg.rf.gd/97947679371.pdfIn PDF document text
    • http://fezapemiker.epizy.com/barclays_app_android_10_update.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/74990619646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c266c59-f36d-4859-9771-2650c327c49e/46432985624.pdfIn PDF document text
    • http://subedawulowuwo.epizy.com/wow_classic_engineering_guide_goblin_or_gnomish.pdfIn PDF document text
    • http://nakarajibap.myartsonline.com/pdf_buku_agama_hindu_kelas_12_kurikulum_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/capriccio_italien_cello_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e26b8a-bae8-49ca-bd12-f4b9f61640a4/ar_15_gun_case_hard.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/mental_addition_and_subtraction_worksheets_ks2.pdfIn 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_off0000e0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D7 5376 bytes
SHA-256: 9043621b61490d428eaeb8e925098152c0c8f4a9e71cd81dfc5bc16cd0105923
font_01_sfnt_off0000f303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF303 10536 bytes
SHA-256: 6b2d34caec148c5642f711d72b873662ee945df3e6f0c3b42dd99a0f5cce8656