Malicious PDF — malware analysis report

Static analysis result for SHA-256 2759c6274234372e…

MALICIOUS

PDF

77.8 KB Created: 2021-03-23 01:59:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 181601a5fd245731e7929078c915a579 SHA-1: 9489ca41db98315aeb7af8142cf85d9f4da28ab3 SHA-256: 2759c6274234372e638effe0d1ae279c866c6fca983615724b38ae5f4be71149
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to watch settings, aligning with a phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=how+to+set+time+on+adidas+digital+watch+adp6071 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388065/normal_5fc92e7088524.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387715/normal_604638e659414.pdfIn PDF document text
    • http://familyit.info/toro_power_max_826_oxe_37799t11x1.pdfIn PDF document text
    • http://jatepot.22web.org/tixalekotifesomunav.pdfIn PDF document text
    • http://sidagopuxi.22web.org/animal_sounds_list.pdfIn PDF document text
    • http://straponartist.com/demijukokz7m7.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/7babe4bc-8f94-49e7-bffe-b09a1a07342e/360_degree_leader_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/binh_php_tn_t_v_36_mu_k_tp_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e26d3196-1806-4fd5-85c9-81899e464826/is_exaggeration_a_rhetorical_device.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/algebra_2_writing_linear_equations_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/speak_now_1_free.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/bluebook_uniform_system_of_citation_20th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbae8acd-f542-46e6-a8bc-2823cfcd73e4/does_body_weight_training_burn_fat.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/moxujixanajokuz.pdfIn PDF document text
    • http://wadusobu.rf.gd/bipolar_1_disorder.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/30105959954.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa062961-bbe2-4a1b-b419-90690f7aefd5/what_is_the_theme_statement_of_the_cask_of_amontillado.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_off0000ef04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF04 5872 bytes
SHA-256: 8673c1d98a83f985c4cce625d9c0da7960178f9a8e152a6556130d7408462bea
font_01_sfnt_off000102f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F5 12156 bytes
SHA-256: 3fa0bf9520e6183924c021aa9595e845f61657c59e75e1cb3186147d9bec3985

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