Malicious PDF — malware analysis report

Static analysis result for SHA-256 33fb967f01e13b04…

MALICIOUS

PDF

82.2 KB Created: 2021-04-15 22:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ac00efb04430ba0b93d800a834cdd048 SHA-1: 55e2b899a58dc2c2a2a5bb93636f134c22bafced SHA-256: 33fb967f01e13b0409f08a0ebfaafe1365b4181e7e1cabb8646076aaebe271e9
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 0.9996

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://xezojetit.ru/strik?utm_term=dmc+tapestry+wool+colour+chart+australia PDF link annotation
    • http://icub.tech/51629001547xj59e.pdfIn PDF document text
    • https://veriketosamu.weebly.com/uploads/1/3/4/6/134675732/d52e6.pdfIn PDF document text
    • http://jatemiju.22web.org/fujizukitodurinogibisewip.pdfIn PDF document text
    • https://zosujugopaw.weebly.com/uploads/1/3/4/5/134509911/5470220.pdfIn PDF document text
    • https://detudonerud.weebly.com/uploads/1/3/4/6/134660859/568395.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/42820585390089tj.pdfIn PDF document text
    • https://pevolevu.weebly.com/uploads/1/3/1/6/131606362/4b35e83ce947a.pdfIn PDF document text
    • http://tinubovibiwiwi.iblogger.org/99543773897.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/pidufozu/chemistry_form_4_notes_all_chapter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4295dc68-e99d-442e-b13b-c436aee2f5bd/muwilevozizode.pdfIn PDF document text
    • http://simipibenafar.epizy.com/arachidonic_acid_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/how_to_play_modern_magic_tiles_3.pdfIn PDF document text
    • http://wanedinak.epizy.com/edexcel_gcse_physics_book_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4677b85d-c194-427b-a0be-958b27f813ea/86855665828.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/gogasopizivikuturin.pdfIn PDF document text
    • http://kesewalasefikef.epizy.com/why_is_my_sky_hub_internet_flashing_orange.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/sevobimox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5efa6d31-a32f-4958-869e-76c9c45d80d7/77184675851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62fc85ed-ac5f-4c74-9b0b-e4e63bb89020/nijuzuwasonizuko.pdfIn PDF document text
    • http://mopituvozu.epizy.com/famafesizivaxaraxavob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/666726dd-4fef-4410-a379-caee9a3dfefa/the_shock_doctrine_short_film.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/gakamif.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_off000100ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100FF 5368 bytes
SHA-256: d79f17619d2a441a3a6cc884cf3fd9bc0895bae60e8a0dd266b07a9f6c3fa8ff
font_01_sfnt_off0001132c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1132C 11748 bytes
SHA-256: 642234d9cb4e7770f42a33355c43303a2681b80f441ce382a1a3c03e2adbf4ee

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