Malicious PDF — malware analysis report

Static analysis result for SHA-256 330cd6fc4e004cad…

MALICIOUS

PDF

79.5 KB Created: 2021-01-05 19:49:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3a97e53c746657daa1804ca187b6855 SHA-1: 8330b6d3ca5a71beeb6ac3e351ac22e3d63eebad SHA-256: 330cd6fc4e004cade2c512fa496603f68a871f31338cca72d259308d3f232031
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to 'traffnew.ru', which is flagged as suspicious. The document body, though heavily obfuscated, appears to reference a manual, suggesting a lure to trick users into visiting the malicious URL. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly indicate a phishing or malware distribution attempt.

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://traffnew.ru/aws?utm_term=camelot+pro+ios+manual
    • https://cdn.sqhk.co/sisadenev/ghd0jeE/wazukizima.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/b8051308-f577-4d7a-b579-3f849c08347f/coin_generator_madden_mobile_160.pdf
    • https://uploads.strikinglycdn.com/files/31f7b8ab-ee57-4e5e-bb31-d8b1dc5c2000/chet_atkins_guitar_method.pdf
    • https://s3.amazonaws.com/ropidadegaxut/chief_health_information_officer_job_description.pdf
    • https://s3.amazonaws.com/rivazixexuguri/symbolic_interaction_in_sociology.pdf
    • https://s3.amazonaws.com/mamibis/behaviour_at_workplace.pdf
    • https://s3.amazonaws.com/wefemabeni/jifelelivaliweximidesim.pdf
    • https://s3.amazonaws.com/wukevirenesu/merexojemitegipikumegu.pdf
    • https://s3.amazonaws.com/vatosolikijike/nibexesem.pdf
    • https://s3.amazonaws.com/bejeseja/thesaurus_dictionary_app.pdf
    • https://s3.amazonaws.com/xupovobejanam/choki_choki_permainan_kad_ar_transformers.pdf
    • https://s3.amazonaws.com/jolunenafobuw/customer_feedback_form_template_in_excel.pdf
    • https://s3.amazonaws.com/kefefetafij/72802754662.pdf
    • https://s3.amazonaws.com/kavitokolezub/nezurisopedogunide.pdf
    • https://s3.amazonaws.com/jotizifime/automation_game_free_full_version.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed98.bin
bcb290c5c5454509590af47c81cd08e33408280cee060fe19986b8c3af54537f
pdf-font-stream PDF embedded font (sfnt) at offset 0xED98 4868 bytes
font_01_sfnt_off0000fe0d.bin
5cdfa038d94651378ae4fd982ae8ad188244ab7fca8d778aeeff2668b01c448b
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0D 10804 bytes
font_02_sfnt_off0001230f.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1230F 4324 bytes