Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d71f9c669f90681…

MALICIOUS

PDF

74.8 KB Created: 2021-03-14 06:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93e2dff39f38908a86a86d8d24d0afc9 SHA-1: e282b52fbe59e5a5b167755f115d86bdf95e55c7 SHA-256: 0d71f9c669f90681ddedfbc6362e02941affcf74c1fdbfffc6991819b84e74df
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a phishing lure or a secondary payload. The presence of PDF-specific heuristics and the nature of the URLs suggest a phishing campaign leveraging PDF documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/award?keyword=teori+pluralisme+pdf
    • http://pearhaidhr.fun/491649044316296x.pdf
    • http://gaydating.world/97034265994421wg.pdf
    • http://metryck.info/alcatel_one_touch_idol_3_5.5_update93cpr.pdf
    • https://cdn-cms.f-static.net/uploads/4461211/normal_60405680a8d2e.pdf
    • https://cdn-cms.f-static.net/uploads/4367277/normal_60209f338e9ef.pdf
    • http://keepsufi.space/wine_enthusiast_silent_dual_zone_10_in._18-bottle_freestanding_wine_coolerz2v8n.pdf
    • https://paruralevefux.weebly.com/uploads/1/3/0/7/130775474/4976564.pdf
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/4eb662e.pdf
    • http://fevozogu.iblogger.org/3944349584.pdf
    • http://koreanluxe.com/always_korean_movie_with_english_subtitle081vb.pdf
    • https://cdn-cms.f-static.net/uploads/4446497/normal_5fd66372e87e0.pdf
    • http://lilozekakotelup.sportsontheweb.net/anker_keyboard_manual.pdf
    • https://cdn-cms.f-static.net/uploads/4369779/normal_602d8d195613e.pdf
    • https://gatojodegapov.weebly.com/uploads/1/3/1/6/131637656/cced8c.pdf
    • http://lelofewadu.iblogger.org/que_es_el_contexto_situacional.pdf
    • http://supportcopyright.net/23838992243dq3ua.pdf
    • http://5-euro.info/who_sells_greenworks_productsod8x2.pdf
    • http://kopogaxepaku.sportsontheweb.net/88281911828.pdf
    • http://kieverts.xyz/37286028925ofq36.pdf
    • https://xewixubigikuj.weebly.com/uploads/1/3/4/8/134892453/wujovifimozuba_kafinu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://suxazetevuzo.onlinewebshop.net/4674339825.pdf
    • http://nabulegewuwal.myartsonline.com/skipping_rope_training_program.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_off0000e826.bin
1ebad067d3545f9ea40418070e798cb7d3bcbef3aa047793f42ea8553cbb2662
pdf-font-stream PDF embedded font (sfnt) at offset 0xE826 5136 bytes
font_01_sfnt_off0000f985.bin
14722188e0c210d3bc30ab39fe9afa15faca75ca11be4ff448433d1c9fa53964
pdf-font-stream PDF embedded font (sfnt) at offset 0xF985 10776 bytes