Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3150bbe16b3a6bf…

MALICIOUS

PDF

77.1 KB Created: 2021-02-27 11:32:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff22f77e3af78c05e7b668eb5b0d1420 SHA-1: 4532fbc02c306ed77bf0f2e4baed4fef9a2a69f7 SHA-256: e3150bbe16b3a6bfb301bb084d4eac098b5439d191f6de3b5a4ed69e71399ae1
96 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains an embedded URI pointing to 'https://xezojetit.ru/aws', which is likely part of a phishing or malware distribution scheme. The document body, though heavily corrupted, suggests a lure related to assembling a clock movement kit, aiming to trick the user into visiting the malicious URL.

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://xezojetit.ru/aws?utm_term=how+to+put+together+a+clock+movement+kit
    • https://cdn.sqhk.co/lepowabog/ajW46ge/chris_stapleton_new_songs_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4479214/normal_600a57a40ed57.pdf
    • https://cdn.sqhk.co/kekotenonaxu/aPF0giB/82421414870.pdf
    • https://cdn-cms.f-static.net/uploads/4408851/normal_6030eb12133f3.pdf
    • https://cdn.sqhk.co/fopajuxalaso/jbif7hh/biwususanonokomul.pdf
    • https://cdn-cms.f-static.net/uploads/4485587/normal_60232eb6b4e8b.pdf
    • https://cdn.sqhk.co/bugabowozi/mPI2jhH/strikers_1945_world_war_best_plane.pdf
    • https://static.s123-cdn-static.com/uploads/4379846/normal_60095bbda0187.pdf
    • https://static.s123-cdn-static.com/uploads/4410431/normal_5fe5156e0ec19.pdf
    • https://cdn.sqhk.co/numiwuzuwix/OAZOgem/briefing_paper_template_apa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/muwemivumazulax/coleman_powermate_pro_gen_5000_owners_manual.pdf
    • https://s3.amazonaws.com/woberiz/ageless_male_performance_review.pdf
    • https://s3.amazonaws.com/kufazete/wekavisegigebijafajesop.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0b5.bin
222ac8c9092816a0eeddad6475e1809ef93e4e5aaf341e9540d0a958a44623fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B5 5344 bytes
font_01_sfnt_off000102d7.bin
c3e6e3197264532408ad8708fe7eae2202be6494ed71db1174de968803410ec8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102D7 10668 bytes

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