Malicious PDF — malware analysis report

Static analysis result for SHA-256 af04841e4ae667bb…

MALICIOUS

PDF

75.8 KB Created: 2020-12-06 22:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 70a5ccad9e60819c5f830d53814a966c SHA-1: 11c103ec8d42efea280de7de2ea53017a19be865 SHA-256: af04841e4ae667bb284a061d678cfc7fa7bbcfa321b6130552fd36fe88c0a5dc
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 0.9998

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://trafficel.ru/123?utm_term=3+pot+crock+pot+tru PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc7991fd32fb7060d12c8d1/t/5fcb79e9a3bc3d19152f0110/1607170537524/wilowupovazejufu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf52a73570fb44d1f9727b/1606374056052/premier_pet_fountain_instructions.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf5d4b7a66e04eaf42a6f/1606219221449/troy_bilt_pressure_washer_pump_parts.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50b14104edf1d779bbfda/t/5fc55748e18c5c478eacf69b/1606768456320/mokelejenodib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a60c87b4-024f-49a6-99a8-96020617aca1/xovosar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8eb02fd4-753b-4404-80c5-33dfebeb4c0f/acentos_en_apellidos.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0d44f8cdb769c6aa8c75/1606290756808/xeteje.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11355ab79f442f22aa123/t/5fc3ecac1972c46e3c16e956/1606675635535/pine_barrens_road_map.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd140c7ad7de4c64a4d1cb/1606226959315/police_operation_order_example.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a5383dfdd95b60da62a1/t/5fc6bf96e2dcb1274dd7a165/1606860695380/the_dictators_handbook.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe6c63f81c9a2a0c73d143/1606315108291/comision_nacional_de_seguros_y_fianzas_agentes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4b74ebe-5edb-4776-b4b7-332874b38106/87072929034.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c66b27a199023ab4af32/t/5fc296a4f3de5e49b5b8e3d2/1606588069234/daily_5_centers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6c4908845d092483324d/1606380621517/2405941349.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6fe89778af068263bdf77/t/5fcd26827ae85b53b29a56ba/1607280259711/rukepajutanikupibunu.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_off0000ee07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE07 4640 bytes
SHA-256: a8237c801d88b868c1be478ff248b6d90e1a4eed4980a69f5693c5a7864b12af
font_01_sfnt_off0000fde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE6 10996 bytes
SHA-256: d0b046fee0a8377310cc2d809bd807062942a2bcdbc174b8a6e921e38962a53d

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