Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9e5ffc87b9e3d5…

MALICIOUS

PDF

69.1 KB Created: 2021-02-19 18:20:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: d5609b48fae0712daa4469bf6f1aca51 SHA-1: a127b98a02e5533a4f4a3711447d24773a73dfb9 SHA-256: 4a9e5ffc87b9e3d59baa5cf33b8d5dce11155dcc3f2154fa7506f0ae6502b566
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this assessment. Although no scripts were explicitly extracted, the presence of external links within a document disguised as technical information suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=bosch+dishwasher+drain+parts+diagram PDF link annotation
    • http://itslm.fun/us_pacific_fleet_commander_in_chiefafe1z.pdfIn PDF document text
    • http://famexukox.22web.org/17345544076.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
    • https://s3.amazonaws.com/nufidibodudulad/kepupu.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/lotus_travel_crib_fitted_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/generic_incident_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/new_bollywood_movie_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/panago_pizza_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/zafutebesapijo.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/cheetah_ultra_hd_wallpapers.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/53608986004.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/vodugisasobapelemidu.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_off0000c3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3EE 5384 bytes
SHA-256: 34ec4662d188b23b2acf0a645664d3dd3b3b0c853a3ad165211993b392ef8dde
font_01_sfnt_off0000d620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD620 10428 bytes
SHA-256: 13b4e322b1bd2fd06b616ac3288348c6977d8b12e434249398437a83956195b1
font_02_sfnt_off0000f9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A1 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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