Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b081859c440858…

MALICIOUS

PDF

74.6 KB Created: 2021-03-14 19:37:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 2c2bd5fd19d42df3b4161609f0462015 SHA-1: acd03e1dc403391cc533f2a52862a677893443fb SHA-256: e6b081859c4408586e867c2053f6b6a0e1fdabec1e6ff921973e901b58849927
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 URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a likely attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://bologen.ru/award?keyword=healthy+vegan+recipes+pdf PDF link annotation
    • http://indital.fun/darlie_routier_dna_updatetm0be.pdfIn PDF document text
    • http://profyhouse.ru/how_to_understand_my_echocardiogram_resultsvv51j.pdfIn PDF document text
    • https://dufemejilesola.weebly.com/uploads/1/3/1/4/131453127/sidipe.pdfIn PDF document text
    • http://agent-ritual495.online/patologia_basica_robbins1z0no.pdfIn PDF document text
    • http://bewizevamud.iblogger.org/fb_messenger_for_desktop_free.pdfIn PDF document text
    • http://nodalaxav.22web.org/kalagunum.pdfIn PDF document text
    • https://xasirazabad.weebly.com/uploads/1/3/4/6/134699738/4928919.pdfIn PDF document text
    • http://optarfes.com/are_colored_diamonds_valuablec6zai.pdfIn PDF document text
    • http://1xbet-regi.site/zuzexatimaboparigapafabhqi.pdfIn PDF document text
    • https://dawoxojukuput.weebly.com/uploads/1/3/4/8/134890950/7daa0.pdfIn PDF document text
    • https://fotawadibegul.weebly.com/uploads/1/3/1/1/131163643/4114180.pdfIn PDF document text
    • http://kakajuzikokimi.iblogger.org/geruz.pdfIn PDF document text
    • https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/911c26fcad.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/fuwuzerijofa/bokelu.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/pomurinilogof.pdfIn PDF document text
    • http://tisigivikevutik.rf.gd/witabakuj.pdfIn PDF document text
    • http://deweleve.epizy.com/gazisaxaxomubapesexo.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/rca_tablet_with_keyboard_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/14736020084.pdfIn PDF document text
    • https://74a5c9af-61bb-4d76-9351-4d02c0bf652a.filesusr.com/ugd/e33828_bc6fb757e539440a9ccada1867f0ef66.pdf?index=trueIn PDF document text
    • http://lizugerij.epizy.com/54959290768.pdfIn PDF document text
    • https://0491f86b-060d-4f4a-be23-b0d01488777f.filesusr.com/ugd/faa7ef_6ae6730e2d214655b33329b34fd9cf7d.pdf?index=trueIn PDF document text
    • https://c1e70603-6ca1-47bc-880b-b60d7d434995.filesusr.com/ugd/df625d_31d26ef16beb4ff4baff0df22b402eb0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/getizar/muradifege.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_off0000e702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE702 5540 bytes
SHA-256: a343f546b1d2f9f920138197267419c4370dc795425bce2c2c923ed5c3ad6193
font_01_sfnt_off0000f9e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E0 10368 bytes
SHA-256: 2de89936adcae10d3fe968db063f8492b530a4bb84cb8fba98feb58aaece07e3

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