Malicious PDF — malware analysis report

Static analysis result for SHA-256 db008a2396a7c2a7…

MALICIOUS

PDF

86.3 KB Created: 2021-02-18 19:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8d512504c0b322832a55eeec5a0b376b SHA-1: e2d630d7efabbb9602c9588252aa286e18b5202c SHA-256: db008a2396a7c2a75e62603fcfae1036655cd6e0f0fa5cbbd7a5822aea8ea501
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-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://bologen.ru/123?utm_term=measure+of+an+interior+angle+of+a+regular+polygon+with+15+sides PDF link annotation
    • https://cdn.sqhk.co/kuzetuzame/jjchijc/85671284706.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476443/normal_601510ce04666.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/pohagdm/farming_simulator_16_mod_apk_android_oyun_club.pdfIn PDF document text
    • http://zajowidased.iblogger.org/57062196262.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487431/normal_601b5f45489cb.pdfIn PDF document text
    • https://cdn.sqhk.co/duzixulok/iarjahd/mechanical_engineering_technology_vs_mechanical_engineering.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365583/normal_6007636f49177.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470223/normal_6005260a389db.pdfIn PDF document text
    • https://cdn.sqhk.co/sirobuse/egfFjdj/bally_pinball_free_play.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fca996036eb4.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/fhdPidz/my_talking_angela_hack_download_android.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/vuliwisuwig/the_huntress_dead_by_daylight_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/13297435191.pdfIn PDF document text
    • http://risawanidav.epizy.com/biological_conservation_author_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/maharashtra_police_bharti_2019_date_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/55771320370.pdfIn PDF document text
    • http://repazof.rf.gd/69100378619.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/free_pencil_shading_worksheets.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ead4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD4 5560 bytes
SHA-256: f2926695b48036a261a132340fdc9ee270d87d4b7d3d2f2a7c29b5d1215ba341
font_01_sfnt_off0000fddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDDB 12348 bytes
SHA-256: 8fe45d13292df966fe65f2d2bb0583ad897b20f69ac5608a0675833bbe453bdc
font_02_sfnt_off00012735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12735 16276 bytes
SHA-256: 8cd4b2e2cf0f33988d3bf9c1701b75c3b62147b43f1643cd6ccceb12743cc486
font_03_sfnt_off00013cc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CC9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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