Malicious PDF — malware analysis report

Static analysis result for SHA-256 519c5ab2036a3e06…

MALICIOUS

PDF

73.2 KB Created: 2021-02-11 17:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 7c5727426091da4b843cfc17a4082245 SHA-1: cfee987de87d2a13a04cce8b30d0a38a7b71e047 SHA-256: 519c5ab2036a3e06a3cc2df6dfe51dbbd788e3c479138e5df609304808750e4d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains a URL that appears to be a lure. The presence of embedded URLs and the overall structure suggest this PDF is designed to trick users into visiting a malicious website, likely for phishing or malware distribution.

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://jottigo.ru/wix?keyword=mind+reading+the+interactive+guide+to+emotions PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4467287/normal_600901681937c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_5fd66097c4aef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420775/normal_5fe90736938b0.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibowaxus/cOejhhq/jafadelibekowidizu.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwonukunav/igf4he7/puropuxikosix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368496/normal_5ffa11ce96945.pdfIn PDF document text
    • http://sanatoriy-izumrudny.ru/dslr_blur_background_apkltmw5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475739/normal_601a2c73c7e7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421614/normal_5fcacc4f73fdc.pdfIn PDF document text
    • https://cdn.sqhk.co/vameduvide/hhp2hb4/famivakupesedemogi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493266/normal_600d95aab06b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424011/normal_5fe3f975332f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390385/normal_60114c2567145.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/gghRghr/41998536331.pdfIn PDF document text
    • http://velesvoyage.ru/cat_simulator_kitty_craft_mod_apkwc9cw.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
    • http://rolizixi.rf.gd/47235994475.pdfIn PDF document text
    • http://mawekipabotore.epizy.com/company_branding_proposal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52C 5268 bytes
SHA-256: 4496b39c1fe55e69eb4ffe9df9fae3814431d73c0d9f7d07dad9df574a8db9fa
font_01_sfnt_off0000e6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EC 10156 bytes
SHA-256: e4a9287ae21adf5b68f521386fce4b68b61411212cb402a697bb1549ee138e11
font_02_sfnt_off000109a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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