Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc18dbece663f88…

MALICIOUS

PDF

103.9 KB Created: 2021-03-03 23:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abdbc30bfd8754e3418f0d56723b844c SHA-1: 9fb723e52fd8f4ae8a81265e3e4669d5f3b2a3d3 SHA-256: 7cc18dbece663f882edfae839d299add2ef7d95aebbd97cfd8eadf29294e0684
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, with at least one pointing to a suspicious domain ('xezojetit.ru') that is likely used for malicious redirection. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further suggests a deliberate attempt to create a network of links for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=ken+wilber+books+in+order
    • http://tersq.space/26867791183kw5m8.pdf
    • http://konanozopesan.22web.org/lijateparagakezujopepoled.pdf
    • https://zemizipip.weebly.com/uploads/1/3/4/0/134098502/429a8dbfcd.pdf
    • http://gufutaca1.xyz/se_pueden_tener_dos_nacionalidades_en_espaa3k58m.pdf
    • https://xukifunizagopo.weebly.com/uploads/1/3/4/0/134013279/leketapis.pdf
    • http://salonapp.xyz/sheetrock_over_plaster_walls_remodeling90deg.pdf
    • http://sun-italy.space/short_term_career_goals_sample_essaymqw7i.pdf
    • https://jewelilug.weebly.com/uploads/1/3/4/3/134331877/5767024.pdf
    • http://fagumawegoleleb.mypressonline.com/alita_battle_angel_full_movie_2018_in_telugu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sipomivizipe.epizy.com/69626323938.pdf
    • http://menovuxitunejo.rf.gd/71885925789.pdf
    • http://zapuwoz.epizy.com/where_did_by_the_skin_of_your_teeth_come_from.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_off00014ec2.bin
9a0990a32aa0374b5b2cd853b123fa7224c6b0cf02935be2198e4af157d0fef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14EC2 4584 bytes
font_01_sfnt_off00015e52.bin
58f85b647a0e3a5f93d3e16eb58b9ddcdf18bda87f8f70a6900f0cd5307f669a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15E52 11488 bytes
font_02_sfnt_off000184b1.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x184B1 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.