Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd85049a56d0161…

MALICIOUS

PDF

79.4 KB Created: 2021-03-16 00:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: e59f238d64ec83720cfe1d6fba438e0d SHA-1: 280ce024065eff550066d6473b22390df501fa0e SHA-256: fcd85049a56d0161f2d15247b353cf7ed4e5ad5f2a6dc0a9ac18ce0087fc398b
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains an embedded URL leading to a phishing domain, as indicated by the PDF_URI heuristic and ClamAV detection. The presence of a 'download button' heuristic further suggests a social engineering attempt to trick the user into clicking the link. The ML classifier also strongly flagged this PDF as malicious.

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://dugedepap.ru/award?keyword=digital+marketing+ebook+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/wobuwaseja/bN07xGc/color_shift_glitter_tumbler.pdfIn PDF document text
    • https://cdn.sqhk.co/sevimifogu/SUejc66/kinimumugaruluposipu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446034/normal_6024aa0458c65.pdfIn PDF document text
    • https://cdn.sqhk.co/kazaluxi/sCicjhD/gixew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_600f326eb67e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426413/normal_5fddd1736f297.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417652/normal_5ffda8e0bbebc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_601818e56d8f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476152/normal_5ff5f95d95f63.pdfIn PDF document text
    • http://dreabling.online/zikejasov73ekm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416304/normal_5ff6041f442c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419637/normal_604514feda462.pdfIn PDF document text
    • http://idealslimitalia-ufficiale.site/el_sultan_capitulo_191pkiot.pdfIn PDF document text
    • https://cdn.sqhk.co/vazedibimi/xjau9hi/foosball_balls_for_sale_near_me.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/1ddce5b6-4498-4386-9871-919be8cfc87b/64050380922.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43faa372-d02d-4031-8975-7053c1b487a6/latotabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52a19f07-437a-499a-a1e2-9719950bb1ec/who_owns_newsmax_news_network.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8155a8bf-9d53-427e-8c41-59fdd0e4ad1a/unitypoint_express_care_west_des_moines_jordan_creek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/833fc2d5-6ecb-4317-91d3-728550399d88/farebojenilokaxixomojib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db2a79ae-4d1f-4b7d-aca2-b666f4c0ee27/zenobaweg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71ee6e64-605d-4898-8f43-30e9b0ac7701/91363290369.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19f30a83-8a13-44bd-98c8-68ba52cbcfe9/92053965191.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_off0000f6f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F0 5476 bytes
SHA-256: d0b14c35fb64238bc690345dd3a41eef9d8af8de239384c12144426af75bc10c
font_01_sfnt_off00010995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10995 11276 bytes
SHA-256: 84d35b4e5b2c01169d4b2cb6114d4711babe6c63f06ebe16f1009e3507469d18

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