Malicious PDF — malware analysis report

Static analysis result for SHA-256 459d1177edb6a810…

MALICIOUS

PDF

74.5 KB Created: 2021-04-07 20:51:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0af407003bc3071f8c4b269783dec100 SHA-1: 14b403c42c7129e4745e3b1b562f8c11ae89f362 SHA-256: 459d1177edb6a8104cd8819e2433c4f719cadc294c1e7c2cd1c6599008f48873
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9999

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://jumiwimov.ru/aws?utm_term=what+is+the+purpose+of+a+fuel+shut+off+solenoid PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447276/normal_603b789b81f34.pdfIn PDF document text
    • https://cdn.sqhk.co/gelowidabik/g5dSjbC/new_music_player_app_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/jhagiib/cinemark_brasilia_cartaz.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/dvRduYp/lafokavar.pdfIn PDF document text
    • https://cdn.sqhk.co/jimikafede/czgdie1/15094425762.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470040/normal_5fe51b3367c46.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/gj795Ab/hero_wars_hack_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501057/normal_60063444e5f93.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/57605c9d-21f2-4f03-9837-160e57f5642c/1783375001.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/30200275212.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/kabikezedelexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e73bec1-53e4-403d-98d6-fe15fab5e264/suzutazup.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/werenepesapawujar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08c10aca-0c2c-44af-9ab3-a5c685aeaa9e/laterevukekulag.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/24046098391.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73679aec-c7c6-483c-b86b-cdc06e5f75f8/how_long_to_cook_a_pork_roast_in_a_rotisserie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddfb22c2-e1ee-4dcb-a9f0-468bfc9a8782/stahls_hotronix_fusion_iq_heat_press_xf_16x20.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78893f2b-08d5-4367-b074-6d10704a5554/65021585276.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_off0000e718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE718 5144 bytes
SHA-256: 07143bf8f29bab34df1924b572c80aa33da3ab8a1ebcfc0730bca33f7883086a
font_01_sfnt_off0000f89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF89C 10632 bytes
SHA-256: 93fc50c1422b0f07c81284292f1177b55c272bfae4531486e56a73246205270c

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