Malicious PDF — malware analysis report

Static analysis result for SHA-256 0410b764186fbb4a…

MALICIOUS

PDF

100.6 KB Created: 2021-02-28 09:00:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 93745317e95486f879d56a263e102b54 SHA-1: e454c55b8501a4016afa6f3016133a78710ceb59 SHA-256: 0410b764186fbb4aa0d0a1090badfdb00fbee8445386e481d6a7291f4bed37ce
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing or malware payload. The document body, though heavily obfuscated, suggests a lure related to data science topics to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7288

Heuristics 4

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://xajibur.ru/strik?utm_term=difference+between+data+science+data+analytics+and+machine+learning PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391037/normal_600c84ae96244.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/cojjijz/technic_launcher_minecraft_windows_10.pdfIn PDF document text
    • http://carbags.site/miboxosinufakepexezudori0dhh1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393890/normal_5fe155abaa79d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371523/normal_5ffcd144702c4.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/hXYRcBZ/risk_probability_impact_matrix_example.pdfIn PDF document text
    • http://dkmz1.club/wolf_of_wall_street_full_movie_google_docsw3ls8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475725/normal_602df873e20ce.pdfIn PDF document text
    • http://huseyincanx.com/tai_chi_exercises_with_picturescek58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470020/normal_603201c54b584.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/pjbijdY/givikufanuveve.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/EcKigID/62789488838.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/gxKgjjz/gun_factory_shooting_range_nyc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495055/normal_6033a8d7d8010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445541/normal_5fe8dfcd32596.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/dazinibonofobi/99442830597.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/apkpure_pc_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/mhw_iceborne_weapons_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/chello_divas_2_full_hd_movie.pdfIn 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_off00014a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A74 5448 bytes
SHA-256: db887487dcd9f2155966e4cbb9dbb71cf69f2592de8e13eed226c23c452728e8
font_01_sfnt_off00015cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CDC 11092 bytes
SHA-256: 30e0d5cf32312ca0f66026c6f7ccd0806609b6857cd4752b683783ff7d246a2c
font_02_sfnt_off00018243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18243 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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