Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe62c2ac253dbd1…

MALICIOUS

PDF

66.7 KB Created: 2021-03-27 20:15:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1b559235f714d85ab70184a8b08f37d SHA-1: 18ddca14830f469d48dfa653f358fab19485a7d8 SHA-256: dbe62c2ac253dbd16ac538addebce40b40cd2197d37d4a0812892486ea9fe937
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV. It contains an embedded URL that masquerades as a search result for 'dave matthews logos', likely intended to trick users into visiting a malicious site. No scripts were extracted, but the PDF structure and embedded URI indicate a phishing or redirection attempt.

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://kuzutuzo.ru/wix?keyword=dave+matthews+logos
    • https://poxawakepuk.weebly.com/uploads/1/3/1/6/131606289/1886657.pdf
    • http://sesesuruko.mypressonline.com/administracion_de_medicamentos_via_subcutanea_definicion.pdf
    • http://lapitubemexidi.mywebcommunity.org/norcold_rv_fridge_manual.pdf
    • https://turexebino.weebly.com/uploads/1/3/4/2/134265835/a6624f84e3b4ecd.pdf
    • http://zasasibibo.iblogger.org/93469928001.pdf
    • http://bukipumil.mypressonline.com/fixotag.pdf
    • http://fexedude.iblogger.org/ditipuwoweras.pdf
    • http://barajofa.mywebcommunity.org/battlefield_of_the_mind_study_guide.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e082b6be-64c0-45f6-a8ff-82b9c6f476f0.filesusr.com/ugd/1479de_95c8ecd3070f4d57888fcac644411d1b.pdf?index=true
    • http://wovuluvoju.onlinewebshop.net/amadis_de_gaula_gratis.pdf
    • http://kofaxafogi.myartsonline.com/mulinapumepi.pdf
    • https://s3.amazonaws.com/nitirew/restaurant_break_even_analysis_excel_template.pdf
    • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_8157282375f948c4abdb8d66da0a9f83.pdf?index=true
    • https://s3.amazonaws.com/muvemasoxaji/sixusoxubamolona.pdf
    • https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_42c1419daebe457aada68f7b2ad716e1.pdf?index=true
    • https://e3055f73-6236-423b-b810-4bc1a15f300f.filesusr.com/ugd/fa12d1_cd58ea535fc241988f0c4e6841c63c01.pdf?index=true
    • http://judiserod.onlinewebshop.net/did_voyager_1_leave_the_solar_system.pdf
    • https://e6343aec-df69-40e7-9959-3c0c55bf73c9.filesusr.com/ugd/6a9017_4a306a8428e04353adb69cda45c2d43c.pdf?index=true
    • https://s3.amazonaws.com/besafefaf/64270633258.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_off0000cb34.bin
f3e072bd618833d05fd111e9e0cd27420557995b960611f163b812fe515652f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB34 5156 bytes
font_01_sfnt_off0000dcb9.bin
8cb87be75144b224b636d519f5b771bdae9542e70e5ef8d8454397aee9f08d43		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB9 9800 bytes

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