Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da5e876678d2bb7…

MALICIOUS

PDF

79.8 KB Created: 2021-04-22 20:42:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2c7f7b589faa96eb1020d7673c6f8227 SHA-1: 7ab8e50c2ec4bfc984b6c48cd9b9c9a60aa4d3f2 SHA-256: 4da5e876678d2bb7d9edfaf9ba8d8b1408f5eaba5e39f7a1575959e3157b4511
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 an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'how to repair a scooter'. No scripts were extracted, but the presence of external URIs and the overall detection profile point to a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=how+to+repair+a+scooter PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377116/normal_606d69b7cf62b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411500/normal_603293d9ce522.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370547/normal_6053ad8f283e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489407/normal_5fe9773283c08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465924/normal_6042e08b0f831.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417128/normal_5fd036fddbb4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381344/normal_601b2a8a419ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488329/normal_5fde82eedd380.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/viregujipowuru/takedepajajutazuku.pdfIn PDF document text
    • http://befatig.epizy.com/sinartrosis_anfiartrosis_diartrosis.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/87444132363.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/fularuwumimekafamofinavez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07845576-ecff-41f3-bca5-d77335935103/43033474023.pdfIn PDF document text
    • http://katosijuxemewex.rf.gd/naberupulup.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/7431440600.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/the_hunger_games_mockingjay_part_2_movie_download_in_hindi_720p.pdfIn PDF document text
    • http://tawajopawizapa.rf.gd/92300569068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37d86c86-4493-4ae3-9b7c-16852ffa216b/what_are_the_5_input_devices_of_a_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/how_to_adjust_kitchenaid_mixer_professional_5_plus.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/zuzasow.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/godurilowagabavenikajiwub.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/7643964617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34050b31-d992-440c-9dc8-0c7aace83eca/raxaripofudu.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_off0000f0b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B4 4628 bytes
SHA-256: 2d20738d368c3f7b44dec3acecc4a2f192944889a17af80a892a27bf2ae212d4
font_01_sfnt_off0001008c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1008C 10296 bytes
SHA-256: 291323066533148fb4a9ab6f90bb510558065397bde77b7aaa64e5a10178c8a3
font_02_sfnt_off000123b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123B9 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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