Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e043a2c033e9cd…

MALICIOUS

PDF

78.7 KB Created: 2021-02-21 19:19:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: dcff0db879dac70f017d41b320e42e9c SHA-1: 90d470ba6eeb24e30a1c6d19097c6445fcd06619 SHA-256: d7e043a2c033e9cd5456f6243264cefcccb96c0fcb76cc01bb5bcd03a7200068
96 Risk Score

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://jacksth.ru/strik?utm_term=cisco+sg300-10pp+reset PDF link annotation
    • https://cdn.sqhk.co/jefapukawore/4lrDTWH/grand_formula_racing_2019_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/Dgd7KeA/67280766965.pdfIn PDF document text
    • https://cdn.sqhk.co/weruvewo/jjhhgcC/pixel_gun_3d_multiplayer_shooter_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/bipukawu/aia3ehi/toxujetoratuzax.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/wivunonovef/habermas_public_sphere.pdfIn PDF document text
    • http://gekikebikujog.rf.gd/street_fighter_iv_champion_edition_mod_apk.pdfIn PDF document text
    • http://sojefebil.rf.gd/66555608584.pdfIn PDF document text
    • http://roxigivakupumun.epizy.com/85085524153.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/the_face_shop_calendula_mask_sheet_review.pdfIn PDF document text
    • http://daxojit.epizy.com/92175524351.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/android_9_for_redmi_y2.pdfIn PDF document text
    • http://nenidexixod.epizy.com/using_inductive_reasoning_to_make_conjectures_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/7685624387.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/javukevazaz.pdfIn PDF document text
    • http://somekifizepu.epizy.com/novobipesevo.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/ibealoke_chukwukezili_upper_iweka.pdfIn PDF document text
    • http://sokagozu.rf.gd/vukutigujixoxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/durgai_amman_photos_free.pdfIn PDF document text
    • http://bumumewevebav.epizy.com/long_form_of_iso_in_camera.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_off0000e942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE942 4956 bytes
SHA-256: 8a703d501e25df0b30016058a70a1cba1446600e0eb3befb4002a3c3228714eb
font_01_sfnt_off0000fa42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA42 10956 bytes
SHA-256: ed672a53eaaee3954793291389442232c43a20373004a2ccb67939971c2c2faf
font_02_sfnt_off00011fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBA 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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