Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d8168946b99157…

MALICIOUS

PDF

287.6 KB Created: 2021-03-16 03:06:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 1e7f6fcba7742950b3259d5fe29fdd0a SHA-1: 413b14b8e4dcad63b2fa045276b0b0a8f45def83 SHA-256: e8d8168946b9915707b7701c43641906194c4a9b70fe082b6e4844b9b1f8d67f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of this file. Although no scripts were explicitly extracted, the presence of an external URI suggests the document is designed to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9530

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://zajinet.ru/wix?keyword=warhammer+40k+space+marine+codex+7th+edition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4496853/normal_5fe9c98d1ab0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374380/normal_6002bbd31e4fe.pdfIn PDF document text
    • https://jototafedapabo.weebly.com/uploads/1/3/1/3/131398279/6466e0a1a38f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472208/normal_603d41747c55d.pdfIn PDF document text
    • https://sofamilases.weebly.com/uploads/1/3/5/4/135401016/lebipotibupedanore.pdfIn PDF document text
    • https://terunutu.weebly.com/uploads/1/3/5/3/135319236/rowowidekisapadakove.pdfIn PDF document text
    • https://xisuludibu.weebly.com/uploads/1/3/5/3/135300694/novinez_jikaler_mipepewepapolom_ribodax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414514/normal_601edb07688dd.pdfIn PDF document text
    • https://cdn.sqhk.co/zozimevoket/jaheiaX/jivugobedodujujegugumiru.pdfIn PDF document text
    • https://rexerobebaru.weebly.com/uploads/1/3/1/8/131872155/2349508.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/YsnirwQ/57513426555.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://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_74c147e82ccc4a9f8a43fedf294cef72.pdf?index=trueIn PDF document text
    • http://zidojupilazado.rf.gd/christian_dance_songs_in_tamil.pdfIn PDF document text
    • https://71fc3d66-43b2-4ae0-adc3-dfbcdf8b5360.filesusr.com/ugd/6605a0_f0c9d8756c6a455d9a15bb9aa2a9e395.pdf?index=trueIn PDF document text
    • http://tizudirexokob.epizy.com/video_infographic_template_powerpoint.pdfIn PDF document text
    • http://muropij.epizy.com/ap_world_history_timeline_1900-present.pdfIn PDF document text
    • https://7e6b698e-d56f-4a21-8c48-787e2f6d39f4.filesusr.com/ugd/7836c9_8ffddc8ac06241c1958b09fb170e51f6.pdf?index=trueIn PDF document text
    • https://4f7f339c-9ee9-4921-a7ad-794169edd555.filesusr.com/ugd/fea72b_4f3aa5cf162948058078b074869539a7.pdf?index=trueIn PDF document text
    • https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_f3aa99877afd41b9be543038b68b9498.pdf?index=trueIn PDF document text
    • https://1c985592-4fe2-425a-b8d2-7dc24782370c.filesusr.com/ugd/a13bc2_20bb688b37b049328373ebf164842c4a.pdf?index=trueIn PDF document text
    • https://ede36962-9452-4451-b182-fa4236ba9bc6.filesusr.com/ugd/83b1b3_e96296bd84174ddaaf96a2c78a0f0363.pdf?index=trueIn PDF document text
    • https://8d67285a-e3c5-4820-bb1a-bb91ce1079a6.filesusr.com/ugd/d54300_683adabc290e4a3884b1bb83f1c52539.pdf?index=trueIn 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_off00042547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42547 5608 bytes
SHA-256: ea43bd94ec295815ffe6362a4a05dd6b2e4a2f38b0ebe16c03015403a3c8df85
font_01_sfnt_off00043842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43842 11788 bytes
SHA-256: 6818b3b88b40bac147c9c90f75b217573cd5b25bcd5cc5b22f1c8549e18da400
font_02_sfnt_off0004602f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4602F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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