Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0aa96405ad835dc…

MALICIOUS

PDF

70.3 KB Created: 2021-02-19 05:29:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 2e97b51d60e0384f856caf627f51fa4e SHA-1: 72a0acc0a3470ebe840944a4fe6444ea836c2a57 SHA-256: e0aa96405ad835dc23b330885264408168781028b4b6fb7355b9f07052175399
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm PDF. It contains numerous external URIs pointing to potentially malicious domains, including 'bologen.ru' and 'lovelid.xyz'. The PDF structure and embedded links suggest an attempt to redirect users to phishing or malware-hosting sites, aligning with spearphishing attachment tactics.

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://bologen.ru/strik?utm_term=which+insurance+covers+spectra+breast+pump PDF link annotation
    • http://lovelid.xyz/anomaly_detection_network_traffic_github6rg34.pdfIn PDF document text
    • http://peuer.xyz/converter_to_word_app_for_pci79qj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480744/normal_5ffeb7bedd6ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489412/normal_6024ee35b0f4d.pdfIn PDF document text
    • https://pulezigo.weebly.com/uploads/1/3/4/6/134600697/772c81ef00ff.pdfIn PDF document text
    • http://tiktokhd.design/ubuntu_14._04_server_desktopt7wsc.pdfIn PDF document text
    • http://covidcapsule.world/macbeth_act_1_quiz_study_guidet8k9o.pdfIn PDF document text
    • http://cozyplacefor.rest/lufonilixmwxb1.pdfIn PDF document text
    • https://piwebodowumogoj.weebly.com/uploads/1/3/4/8/134857209/morurujawodij.pdfIn PDF document text
    • http://kompledom.com/285423330869tokc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465538/normal_6006facc5b717.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370054/normal_6022fec601344.pdfIn PDF document text
    • https://mezamavizasiv.weebly.com/uploads/1/3/5/3/135312133/e483d60a3350c.pdfIn PDF document text
    • http://gooddevice-online.com/google_sheets_lookup_last_value_in_columnp6il8.pdfIn PDF document text
    • http://daating19.site/8102558mpblf.pdfIn PDF document text
    • http://experiment.website/cash_flow_statement_format_ukan23l.pdfIn PDF document text
    • https://wujibinofowe.weebly.com/uploads/1/3/1/3/131383737/48d035.pdfIn PDF document text
    • http://tryplafond.xyz/77573090129l7mxh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/easy_popular_piano_songs_sheet_music_free.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_off0000d431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD431 5352 bytes
SHA-256: 66d8d9524134aad98b5fb0296a33a48ef1f0bb4a1283dd27ddb8b26076588d49
font_01_sfnt_off0000e64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64B 10980 bytes
SHA-256: fc41b7ab549bce2f8fef4a16028f0d5739726a1a5ae26e7c52186859243a6c0b

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