Malicious PDF — malware analysis report

Static analysis result for SHA-256 2002ae0d2bb2fa5a…

MALICIOUS

PDF

84.9 KB Created: 2021-02-20 06:26:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f849719fa3011e511ab1fbfbd1753491 SHA-1: ef6c8dbf14c3c469cc08aa26d737ac047c4c6984 SHA-256: 2002ae0d2bb2fa5a31d8e36936741de1ae2ad3ea840a6c69d83ccc055ad4e467
104 Risk Score

Malware Insights

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

The sample is a PDF document that contains an embedded URL pointing to a suspicious domain. Heuristics indicate the presence of a download button lure and ML classification strongly suggests maliciousness. ClamAV detection confirms this, identifying it as a phishing trojan. The embedded URL likely serves as a redirect to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=johnson+seahorse+5.5+carburetor PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476577/normal_600a46aba413c.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/xOciBie/free_music_for_videos_soundcloud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443803/normal_5fc5d78c22033.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/Qgggg1l/ludo_superstar_hack_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372080/normal_601c95f7dfd6f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423428/normal_6007a655560ad.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/jdijijg/how_to_draw_lines_in_gimp_2._10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403952/normal_600ba9a27c037.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485579/normal_5fdc9996435c9.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/likadojivivofu/rinifawulokot.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/celine_dion_power_of_love_music.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/10068591867.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/93023407007.pdfIn PDF document text
    • http://rowovotufuru.epizy.com/paper_bag_craft_templates.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_off0001031d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031D 4976 bytes
SHA-256: 6bd9cc0ec1798ffe9b105ca692e55c91644c583b2a907b1263a34a27ae8e86ff
font_01_sfnt_off000113fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113FB 10624 bytes
SHA-256: e20215d04ebb0b37295396ea6ab97fb14de183fd22c61bd531cdda168f9ccaa9
font_02_sfnt_off0001385e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1385E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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