Malicious PDF — malware analysis report

Static analysis result for SHA-256 3323602cf0919d30…

MALICIOUS

PDF

73.1 KB Created: 2021-02-21 15:09:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c77aa884edeb8e2187940de04661ba85 SHA-1: 64b60ca54d97f8d1c58d2e10b90a1feed11973a6 SHA-256: 3323602cf0919d3097c955de479732c582b53e17a683ea57b107c6153ac3603b
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://baarspo.ru/strik?utm_term=oxford+english+grammar+course+intermediate+answer+key+pdf PDF link annotation
    • http://ig-copyrightnotice.com/lara_croft_relic_run_mod_apk_obbbti8h.pdfIn PDF document text
    • https://cdn.sqhk.co/tobepeliv/hhajhgg/empires_and_allies_auf_pc_spielen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_601b188e43dc8.pdfIn PDF document text
    • http://about-fb-support.com/lididiml4qzg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420608/normal_5fe1035b14714.pdfIn PDF document text
    • https://cdn.sqhk.co/salijuvam/iigfIno/double_clutch_apk_uptodown.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393489/normal_600be0fbaca6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420610/normal_601f1c0522b5c.pdfIn PDF document text
    • https://cdn.sqhk.co/sobupepokor/h8TTxgd/toolbox_for_mcpe_apple.pdfIn PDF document text
    • http://shopmzm.site/1501177367915gw8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382793/normal_5fd378967ce20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_5fd0d712b8be3.pdfIn PDF document text
    • https://cdn.sqhk.co/gedofovel/eoiaIhb/mibuvimavet.pdfIn PDF document text
    • http://austritkfa.com/shuudengo_capsule_hotel_de_joushi_ni_binetsu_tsutawaru_yorum7s0w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_5fec410ec233a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4E 5920 bytes
SHA-256: c40bfa5c6f521a12ce62e54ecd079364c1a915cc817fa2a84ba82c1c3cbdb37e
font_01_sfnt_off0000f16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16B 11112 bytes
SHA-256: 6c2d7575f0b9dce4a18e40a0ebcda4e2d4095c20c699f9719c283582e38cc14a