Malicious PDF — malware analysis report

Static analysis result for SHA-256 8006cce51de7c44d…

MALICIOUS

PDF

80.1 KB Created: 2021-03-20 01:30:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7f41fb21d266151324e96a92a5084b7c SHA-1: 9b3efd2bf04f668612b25cfea91fcc2027476e73 SHA-256: 8006cce51de7c44d3a7fb2e0b09653cb1be59701420b8395c4880ed1e45b03c6
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://nipisod.ru/wix?keyword=ethos+logos+pathos+quiz+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444117/normal_603f3557eff24.pdfIn PDF document text
    • http://lakuberik.mywebcommunity.org/ano_ang_tanggol_wika.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446394/normal_5fddcbc9591cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404733/normal_604b93a1a7906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389074/normal_5fd78a918e79c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418192/normal_603f118195e5d.pdfIn PDF document text
    • https://cdn.sqhk.co/pumafuki/hZqOrMQ/little_alchemist_combos_diamond.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480732/normal_603078edd4493.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/ijhgjg9/weed_wacker_home_depot_battery.pdfIn PDF document text
    • https://cdn.sqhk.co/nosimasiv/ibOq9ax/31591753337.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479705/normal_603e4c77e166e.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/71773b0b-8276-4e8a-9a34-920ba4ad6f5b/befakafisoxigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cc60215-787a-4838-953a-7b9f8c0d7816/banowazizobiposonupevene.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/bordereau_d_envoi_dfinition.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/catalogue_des_cameras_de_surveillance.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/jevaj.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/39363940884.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ac04b0-3c4f-42dd-b666-7ec6c5bb61f5/70666348983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ddd324-2548-4dc5-be2d-f432bcfc709f/the_selection_kiera_cass_movie_cast_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1965dd0d-6cfc-4248-855c-4cf162ab81a3/baguwakimapabewivawen.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AC 5308 bytes
SHA-256: 7155f8095edf0ecdd7561be0d46947e90952f123b7e2387b29bbda1eb021b708
font_01_sfnt_off0000f7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7CD 11300 bytes
SHA-256: 5d8d2c458afbf513d916cdf0195b1dbf77c8032c5b6e269789c28562a7e9e1e7
font_02_sfnt_off00011e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E3E 16088 bytes
SHA-256: b2ddecaff7e2361bf51021b35f9c014659943b600c4f466cb4656cea9e83b80e

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