Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0df550ce24f6bc3…

MALICIOUS

PDF

80.1 KB Created: 2021-03-17 03:15:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60d8f341a95207b2830d326889822768 SHA-1: 21839fe6d64c05d16fe6a61da691413da8bdb8a6 SHA-256: e0df550ce24f6bc3ccf8d933201a2904ef23c3e1a9f8a03fde816919d5fb6115
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used to host or deliver a malicious payload. The document body, though partially corrupted, suggests a lure related to downloading a book, a common tactic in phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/award?keyword=descargar+libro+angeles+y+demonios+pdf
    • https://cdn-cms.f-static.net/uploads/4379483/normal_601fe422d9553.pdf
    • https://cdn-cms.f-static.net/uploads/4384645/normal_604d6f1db4ec0.pdf
    • http://teagreen.space/jefebotuk80muo.pdf
    • http://ig-verifiedsbadge.com/69149381837lmjw3.pdf
    • https://static.s123-cdn-static.com/uploads/4477651/normal_5ff8e9a125e45.pdf
    • https://cdn-cms.f-static.net/uploads/4380084/normal_60361a2f314fe.pdf
    • https://cdn.sqhk.co/rozesivotix/TVgghdj/nebasujipojivukesemibabu.pdf
    • http://viwimewi.22web.org/kaththi_villain_theme_song.pdf
    • https://cdn.sqhk.co/jatobeguji/KgeT2pe/90674261718.pdf
    • https://cdn-cms.f-static.net/uploads/4377403/normal_601b446885dd7.pdf
    • https://cdn.sqhk.co/rotonoba/KgjCGgd/child_development_wachanga_parenting_guidelines.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e4924681-c0da-4085-940f-f7b3a700b3dc/washington_redskins_depth_chart_rotoworld.pdf
    • https://uploads.strikinglycdn.com/files/9b13ed9b-d43d-4826-bd4a-65f0fad35ede/earth_stove_101_manual.pdf
    • https://uploads.strikinglycdn.com/files/9d3d4ac6-c618-4552-8145-f1c779cc752b/four_types_of_sentence_structure_ppt.pdf
    • http://pamapubosozule.epizy.com/annual_return_form_27_under_factories_act.pdf
    • http://vopezaxaf.epizy.com/suvuputowez.pdf
    • https://uploads.strikinglycdn.com/files/fa052170-ee8c-469d-9ccd-ece0bfe31e91/malarow.pdf
    • https://uploads.strikinglycdn.com/files/79f1fa5e-9bdb-4713-9b77-10d8a67ad133/how_to_set_volume_on_verizon_fios_remote.pdf
    • https://uploads.strikinglycdn.com/files/436413b5-f2a1-4718-a7f0-071fd1ee4383/how_to_learn_salesforce_development.pdf
    • https://uploads.strikinglycdn.com/files/b5746cd2-2e45-49bd-b4b3-87f31625ff26/fefoxujawaxuwu.pdf
    • https://uploads.strikinglycdn.com/files/e94bf299-dd21-46de-9ed3-d7f9e039d53c/mossberg_930_review_2019.pdf
    • https://uploads.strikinglycdn.com/files/b322764d-3a89-4218-b2be-78859d6bc795/38954076840.pdf
    • https://uploads.strikinglycdn.com/files/8ccc80b9-af65-4001-9c12-16be994d1436/28063717836.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f81b.bin
860a7689d917689a9ef96006d4cc28d78dae862f93dfa741280f6b863cfaa2e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF81B 5716 bytes
font_01_sfnt_off00010b85.bin
90150029c39afe9fbc50385c7127f78eb47de0d47232d94bda5d1c23013442c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B85 11524 bytes

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