Malicious PDF — malware analysis report

Static analysis result for SHA-256 b45c1d05d60661bc…

MALICIOUS

PDF

91.0 KB Created: 2021-04-20 09:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5b7ab4a4176e85db308e5e54d1921e67 SHA-1: 54a1e7fd9a31159daf9023437be7c2f1fc6dd655 SHA-256: b45c1d05d60661bc31d228427de9b92fc63befaaf1335948b6a5abe511d0c454
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 0.9989

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://botokaw.ru/strik?utm_term=boy+in+the+striped+pajamas+book+sparknotes PDF link annotation
    • https://gudaxukusakirip.weebly.com/uploads/1/3/4/0/134096244/warijodusa.pdfIn PDF document text
    • https://jagaruwej.weebly.com/uploads/1/3/0/8/130874180/sowiz.pdfIn PDF document text
    • https://kurixaxewa.weebly.com/uploads/1/3/1/3/131383664/rewerekogitumasurag.pdfIn PDF document text
    • http://palovedu.22web.org/26588683193.pdfIn PDF document text
    • http://fakosujonipej.iblogger.org/gugutepufagijevimileju.pdfIn PDF document text
    • https://jivenikovo.weebly.com/uploads/1/3/4/3/134308789/8632379.pdfIn PDF document text
    • http://jonusawa.iblogger.org/56974993337.pdfIn PDF document text
    • https://putajomarope.weebly.com/uploads/1/3/1/4/131437676/1391866.pdfIn PDF document text
    • http://nonukel.iblogger.org/jutoviniwafedawesililif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://riwexakax.epizy.com/kanashii_ureshii_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/nozupazanuranoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/snapper_battery_lawn_mower_reviews.pdfIn PDF document text
    • http://zamoguwudegovo.rf.gd/mgccc_web_services_login.pdfIn PDF document text
    • http://puredaw.rf.gd/flight_arrival_information_sydney_international_airport.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7171e8b7-b90e-42d6-a46f-4d01ce114de0/te_amo_con_todo_mi_corazn_y_alma_in_english.pdfIn PDF document text
    • http://fonedasin.epizy.com/inside_the_south_african_reserve_bank_download.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/maco_laser_printer_labels_templates.pdfIn PDF document text
    • https://48936d5e-4b15-4059-a328-ddb12afcc15e.filesusr.com/ugd/173145_dcdaee8df8b04839b32a7ca5b3239a54.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/guxosa/crescent_lake_fishing_report_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f83de33c-8443-42e7-a389-e12e49270038/virerunotovelirasosakodon.pdfIn PDF document text
    • https://dacf5b84-f80e-4bd8-bb7f-22aad20a1cd8.filesusr.com/ugd/285be4_cd344fd58cdb4741b8f160f4cf99e556.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/91540586-e169-4a7f-b061-770c1e0e6f96/how_many_books_are_there_in_the_new_testament_of_a_catholic_bible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f11d9fa-a5f9-4e4e-85bc-537c6f119b1b/98904825455.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/kuzagisorine.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BE 5384 bytes
SHA-256: ffee34b60213d15bd4a0a93ab5529afb3dd2e36da06113efa2675162e86f9e76
font_01_sfnt_off000128df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128DF 11624 bytes
SHA-256: eaebd901d2a02f41de699759540160c1e49ff46203881667b18e41ec6bf3453b
font_02_sfnt_off00014fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FE1 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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