Malicious PDF — malware analysis report

Static analysis result for SHA-256 693b308f1c72aed9…

MALICIOUS

PDF

77.7 KB Created: 2021-02-28 11:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c6187f453e2d42501b6be18c3cce119c SHA-1: 03ad77749f141657c01ae1af861e649e76294682 SHA-256: 693b308f1c72aed9426cb62f2737ac001fab9d48358e6fe4bdf4a76434315dc5
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 0.9997

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://fokemale.ru/wix?keyword=i+got+sunshine+on+a+cloudy+day+remix PDF link annotation
    • http://bamebefexa.22web.org/remington_700_adl_vs_bdl_vs_sps.pdfIn PDF document text
    • http://thestablestl.com/pixijubofekis3lsjr.pdfIn PDF document text
    • http://natgood.space/copying_sheet_in_excel_vba9fjfv.pdfIn PDF document text
    • http://osmosiotzs.fun/firifomixulunuojqrf.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/lolaritemukole/duwibilubi.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/cbse_net_2018_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/basifadinunaxurirodiru.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/child_protection_victoria_mandatory_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/dinah_zike_science_foldables.pdfIn PDF document text
    • http://moniladipawi.epizy.com/lifeboatman_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/23908924966.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/autocad_distance_command_line_disappeared.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/ripasexoketiwadug.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/maid_rpg_rulebook.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_off0000e74f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74F 5344 bytes
SHA-256: 7230245d6dc8d42a1b7dff319b0da54e5fd116c681a7603e7e4de4c3f47f0380
font_01_sfnt_off0000f954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF954 10136 bytes
SHA-256: c1893856cfc077e4e2590498791dc5a44265433086a50e00186fbb388c0bcacd
font_02_sfnt_off00011bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF4 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71