Malicious PDF — malware analysis report

Static analysis result for SHA-256 69801f075ca9cd68…

MALICIOUS

PDF

74.4 KB Created: 2021-01-31 02:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ba55733aae4bd06ef8c6abab0c7e3687 SHA-1: 49b37f59c06a19bb9454e3bb0a3dc1d97199e8aa SHA-256: 69801f075ca9cd68593502445368ce17990043ce78602ba3aeba20aef0366dfe
126 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism to deliver malicious content. The document's content, though obfuscated, appears to be a lure, likely a fake report, to entice users to click on these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/aws?utm_term=classification+of+invertebrates+and+vertebrates+lab+report PDF link annotation
    • https://jewafime.weebly.com/uploads/1/3/2/6/132681773/7df23b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444648/normal_5fcc6c285a66f.pdfIn PDF document text
    • http://gomotejux.iblogger.org/embed_screenshot_in_cucumber_extent_report.pdfIn PDF document text
    • https://dufebekeromodi.weebly.com/uploads/1/3/0/7/130776386/nemanivul.pdfIn PDF document text
    • https://wixokaregojes.weebly.com/uploads/1/3/2/6/132681478/8fae751a589c0b8.pdfIn PDF document text
    • http://thecaffeinatedstudent.com/mario_party_ios_gamesc63ar.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/football_manager_2015_java_gamew67if.pdfIn PDF document text
    • http://idealslimitaly.site/random_chat_with_strangers_without_registrationr767z.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/f7ggjha/6689786773.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/jjhjOhc/assistant_marketing_manager_jobs_nyc.pdfIn PDF document text
    • https://sutogeva.weebly.com/uploads/1/3/0/7/130739298/wutuza.pdfIn PDF document text
    • https://bifekanivixu.weebly.com/uploads/1/3/1/4/131408854/426537.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tukozadagafewan.rf.gd/sewajedep.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE640 5252 bytes
SHA-256: 02b5861f52ea7e65eb14dc9b529201be97cff99039e07d70446ff714ad78a2a1
font_01_sfnt_off0000f82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82A 10776 bytes
SHA-256: bf15410452f638c269c5f8425ec46ccc30ae1000ae1b0f06890c23cade486e9d

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