Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ff792556bd645d…

MALICIOUS

PDF

79.0 KB Created: 2021-02-27 02:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 51df9e7e8e273cbadad4c268d6612f49 SHA-1: 95403844bddd3d734c110aa042cbdfd34c638695 SHA-256: 80ff792556bd645d20a43e2ae2e522d753dd935e2dbaacc4188317add240da00
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://mezovuduw.ru/123?utm_term=canon+rebel+t5i+review PDF link annotation
    • https://cdn.sqhk.co/limexofure/fhegjge/twisting_frog_jumps_exercise.pdfIn PDF document text
    • https://cdn.sqhk.co/jozanafe/TvzjgsS/matches_puzzle_game_episode_14.pdfIn PDF document text
    • https://cdn.sqhk.co/runolisor/hjfhe6N/82021892997.pdfIn PDF document text
    • https://cdn.sqhk.co/febenanedibu/geTDjaz/traffic_on_205.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jinonepi.epizy.com/24651983740.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/is_the_monk_who_sold_his_ferrari_fiction.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/password_keeper_printable_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/how_to_program_remote_chamberlain.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/87310922447.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/12547740660.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/polymer_ppt_template_free.pdfIn PDF document text
    • http://pamiwumewamem.epizy.com/cisco_catalyst_9300_quick_start_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/rpg_maker_free_android.pdfIn PDF document text
    • http://pawubiba.epizy.com/91684351536.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF613 4824 bytes
SHA-256: 891476e61d87ad2857b6c37637150d175615cb572a2c009bddac4391a9e0f810
font_01_sfnt_off000106a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A0 12348 bytes
SHA-256: 072ef7019baf65e5e8ac56a7fe9e18085ef0b9a8b1156630675ab0b860f08650

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