Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d27d60ac27f02be…

MALICIOUS

PDF

86.1 KB Created: 2021-03-06 12:55:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d0f4ebefed429b975a93264e532b4232 SHA-1: 762c0b99f8cc237e24f2c5b22aaae04c3b3c6e64 SHA-256: 0d27d60ac27f02be54ee38c1c22284f6b61bc716ade8cb00a4236c996376ea21
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of an external URI pointing to 'xezojetit.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used for social engineering to trick users into downloading further malicious content or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/strik?utm_term=black+and+decker+mini+fridge+thermostat+settings PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474205/normal_5fd263e056cc1.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/what_trees_grow_well_in_central_florida.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413693/normal_60189fdd3f9f2.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/13286371009.pdfIn PDF document text
    • http://mopexaxurip.getenjoyment.net/hallelujah_for_the_lord_our_god_the_almighty_reigns_chords.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426549/normal_60431d927c5d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468259/normal_5feb908d59a02.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494165/normal_5feb34cfcc5a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495849/normal_5fe69dd4aac89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/31b70f8a-8ef4-4c9a-af58-08b9783e2478/what_does_the_smart_goal_acronym_stand_for.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0189c43-abcf-4131-a1fb-f83b210044b3/46491194614.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b0544f0-87c4-4c3a-90d6-3ffafaac1973/muwigadazuririsujol.pdfIn PDF document text
    • http://punotonaduwize.atwebpages.com/68334262964.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74225954-002a-474b-befb-32c591a5197e/lexus_is300_ls_swap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f346617d-9061-46c9-a555-9441bf043a56/rich_are_becoming_richer_and_poor_are_becoming_poorer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94019216-fe94-4258-b217-7b60d69433a0/24753858825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3101cacd-8a6d-4c81-839c-bc9058daca39/past_present_future_tense_worksheet_grade_5.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_off00011159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11159 5548 bytes
SHA-256: cfafe8fae51f01f7174d40eeb5d0cd6400a1c38c2b471ec001a1db33713d772a
font_01_sfnt_off00012416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12416 11548 bytes
SHA-256: bad25b0b488a786e7fbe8af12d4ee5744ab0c949c34ba90a2fc1f410ecdd2195