Malicious PDF — malware analysis report

Static analysis result for SHA-256 5881380281d64eff…

MALICIOUS

PDF

75.2 KB Created: 2021-02-23 21:18:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 69024ae6df3ead31bd1caa3d2f7d4b54 SHA-1: 65c7cf87b9629eb567b616587264fc43b6264de4 SHA-256: 5881380281d64effe8378cceeb27a8482fe4757e9c40f227aea161627e75e3cd
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://jottigo.ru/strik?utm_term=carl+rogers+theory+of+learning+ppt PDF link annotation
    • http://lastmarkt.ru/briggs_and_stratton_550e_parts_manualsjpjl.pdfIn PDF document text
    • http://jumovuv.22web.org/crossfire_ph_gameclub_2017.pdfIn PDF document text
    • http://fb-ig-copyright.com/broken_glass_wallpaper_for_android_hdww5kc.pdfIn PDF document text
    • https://cdn.sqhk.co/wenegifuteg/4ighehd/3238481081.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/kjg2Qgh/43079019232.pdfIn PDF document text
    • http://japancar-sib.ru/366119496016mqhg.pdfIn PDF document text
    • http://nowefewafugaki.iblogger.org/3d_shapes_properties_worksheet.pdfIn PDF document text
    • http://gilogaviteno.iblogger.org/whirlpool_ultimate_care_ii_lid_switch_bypass.pdfIn PDF document text
    • http://webpost.pro/nitro_converter_to_word_freezsyl0.pdfIn PDF document text
    • http://accueilcmb.com/45480545960iakb7.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/36085125197.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/ernest_hemingway_worksheet.pdfIn PDF document text
    • http://pudekixepubaz.epizy.com/lipavitipolojatazefesoz.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/classified_balance_sheet_investopedia.pdfIn PDF document text
    • http://jogufek.epizy.com/kindle_fire_hd_3rd_generation_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/behind_enemy_lines_colombia.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/linewukuvirorosez.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_off0000dd3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3A 1872 bytes
SHA-256: b1b733d6dcd41c651d24b99c9f5200ade4dd71601f7ee8dbd3095764b9703bfb
font_01_sfnt_off0000e62f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62F 5172 bytes
SHA-256: 177cf3f9cc6309e14ef9602ff0581e50e3def5838af5b088f77a6955cc4a0538
font_02_sfnt_off0000f7ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7CE 11568 bytes
SHA-256: 200b7e4f01245cd69f2eea25d35d26d38c5a08b126b4d3c1b99606b22661657a

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