Malicious PDF — malware analysis report

Static analysis result for SHA-256 8001da4e9aa13aa0…

MALICIOUS

PDF

66.8 KB Created: 2020-12-04 11:40:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98dbaf214a2794fd285c5623c3583217 SHA-1: e59f099a7dbcc94517213ce4cac9bf218aea46fe SHA-256: 8001da4e9aa13aa083dcccbd120ed9dfd1683c8dd050f25a924c01a534f166d7
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 URI pointing to 'traffking.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'domain flipping guide pdf download', aiming to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffking.ru/123?utm_term=domain+flipping+guide+pdf+download
    • https://tuvozejuwubox.weebly.com/uploads/1/3/4/3/134323710/bed10eeb882f59.pdf
    • https://cdn-cms.f-static.net/uploads/4405652/normal_5f93a5a73e3ee.pdf
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/f96ab6d35f.pdf
    • https://damilezudof.weebly.com/uploads/1/3/4/5/134599741/joleraninipi.pdf
    • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/nikivosupefiw.pdf
    • https://cdn-cms.f-static.net/uploads/4485929/normal_5fbe185a208b4.pdf
    • https://cdn-cms.f-static.net/uploads/4370996/normal_5f9be165410f4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfd15ef3361272aec3c9c/1606221078930/37028733208.pdf
    • https://static1.squarespace.com/static/5fc0f24c403f5353fd95fd42/t/5fc2c5b69d79364840e924ab/1606600119279/uses_of_esters_in_different_industries.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf49b173fb5383b676ea2/1606284446886/country_dances_for_couples.pdf
    • https://static1.squarespace.com/static/5fc29c71ab79f442f23484e6/t/5fc8176b8bd779356742f0ea/1606948715551/zombie_mine_survival_craft_zip.pdf
    • https://static1.squarespace.com/static/5fc0d3b00b6b03258f353712/t/5fc2528df81c9a2a0ced9084/1606570638230/17910121429.pdf
    • https://static1.squarespace.com/static/5fc0055e5687f52b6b7c450a/t/5fc2d784e6d49a06bbf0fe7b/1606604677218/54219964255.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_off0000c679.bin
a1550a45b767b4bca096d0123901a489fe3d011f083bd8bec1502076bb8ee98d
pdf-font-stream PDF embedded font (sfnt) at offset 0xC679 5180 bytes
font_01_sfnt_off0000d824.bin
1edd93fc27877ec790f4dd14c7b475bba61189eb7733f5d71b848ec85c871b16
pdf-font-stream PDF embedded font (sfnt) at offset 0xD824 10788 bytes