Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a703b9ab548115…

MALICIOUS

PDF

77.3 KB Created: 2021-03-15 14:13:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b1dbb1b9e596729ff1d2b41be08be410 SHA-1: 0910ec9aea4f1babdc1f2682e993e02c5a8c64ac SHA-256: f6a703b9ab548115ee4d2d1136970b9243c6504ad7a992f633bd8881714abe63
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/123?utm_term=incident+injury+report+form+template PDF link annotation
    • https://cdn.sqhk.co/levowexesu/ggjXAGl/sin_pin_numero_para_marcar.pdfIn PDF document text
    • https://cdn.sqhk.co/rupomotiz/ghbVHSy/45772436177.pdfIn PDF document text
    • http://fogimikolasot.iblogger.org/parts_of_speech_worksheets_4th_grade.pdfIn PDF document text
    • http://mazipuvaxa.mywebcommunity.org/materi_argentometri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jezevenakos.myartsonline.com/xexalewiwisusasebalodoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/437ece11-0018-452f-bfc0-08331cc7f3f0/95290771404.pdfIn PDF document text
    • https://83f018a0-8e49-44f0-b57e-805e464a5f06.filesusr.com/ugd/10a4aa_e5ac6e3d82134d61b9e2a585c37b4fab.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/berserk_1997_opening.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/918ca744-75c3-4785-b34d-dc2c9e618f51/tibusixutaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/motorola_xts_1500_impres_battery.pdfIn PDF document text
    • http://memamawu.onlinewebshop.net/tipomemexometurikuke.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/49184857400.pdfIn PDF document text
    • http://nevafofuvabovid.atwebpages.com/59225626502.pdfIn PDF document text
    • https://8dac4d01-2cd1-45d2-8b5f-6005f802adc9.filesusr.com/ugd/1f96ce_96a8f735b0f74dbfa8352e96cd390652.pdf?index=trueIn PDF document text
    • http://borufaf.rf.gd/25824138257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a42a380-2465-4cb5-9dbf-e982214291a1/jumping_the_broom_movie_music.pdfIn PDF document text
    • http://nukupotiti.rf.gd/78241209327.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/xemelosiva.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12F 5240 bytes
SHA-256: 45c17765286788a3c69833dc57cb46737483c890c584ff206aee68d2d8e51c6a
font_01_sfnt_off000102fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102FC 10832 bytes
SHA-256: fb69f723fa7417df860cb221178b2238ccf424fd1a8f46d05eb972932a535271

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