Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c201a9306d4c026…

MALICIOUS

PDF

75.1 KB Created: 2021-03-23 06:20:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b44c7b95351c2978c53a4430bc3d7b9 SHA-1: 29949196ce2e024bbcad94e81b2bff178587b96a SHA-256: 0c201a9306d4c026d93277e62b0838c3dced302a735159a2c2f527a18d74a89b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs users to a suspicious domain, likely for phishing purposes. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to lead users to malicious content, potentially a phishing page or a further payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dafemum.ru/123?utm_term=conical+pendulum+experiment+pdf
    • https://nilowebun.weebly.com/uploads/1/3/4/7/134751503/nuzivogifedik_kugitesuroso.pdf
    • https://cdn.sqhk.co/dunokufimove/je6NOSR/ohongkar_arman_alif_song.pdf
    • https://cdn.sqhk.co/solijisivono/L0gg48n/fancy_slime_app_free.pdf
    • https://labatozun.weebly.com/uploads/1/3/1/6/131607827/5478530.pdf
    • https://keguvetazako.weebly.com/uploads/1/3/4/7/134702613/4480242.pdf
    • https://wubinuju.weebly.com/uploads/1/3/4/6/134642725/zidasuj_fatositurate_dojokebulaze_ruxepatevef.pdf
    • https://sitadubudotewor.weebly.com/uploads/1/3/5/3/135335426/subof.pdf
    • https://cdn-cms.f-static.net/uploads/4529024/normal_60485927bca09.pdf
    • https://sakirirolero.weebly.com/uploads/1/3/1/3/131383462/1168989.pdf
    • http://bilomibedaralo.iblogger.org/4620886474.pdf
    • https://cdn.sqhk.co/begazopego/Ic8xjec/boat_drawing_pictures.pdf
    • https://cdn.sqhk.co/mosepoxik/S8CicXr/vomiwa.pdf
    • https://cdn.sqhk.co/mosugukasiba/3DZ3IAv/revell_ww2_plane_models.pdf
    • https://sowekunozo.weebly.com/uploads/1/3/5/3/135321923/gizudetivonap_videlevirogek_nowakupetova_gibolilosurel.pdf
    • https://cdn.sqhk.co/bisulalu/difXBqM/gobigig.pdf
    • https://cdn.sqhk.co/nijazulagoza/ghhjhDh/bizuvogixij.pdf
    • https://nefopenexa.weebly.com/uploads/1/3/0/7/130739549/malifarimusuwono.pdf
    • https://lonumuzab.weebly.com/uploads/1/3/4/2/134234730/kivirusosuda.pdf
    • https://cdn-cms.f-static.net/uploads/4386079/normal_6040bab7db345.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://siwibaxi.epizy.com/peviditejuxifopusa.pdf
    • http://seterawexasubo.epizy.com/mini_bobina_de_tesla_9v.pdf
    • http://rubuvajaroxe.epizy.com/72204295927.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9bb.bin
15ad7a9a543bdf09bb12c74698f19941ab528a4192dd59bf3662a538fc0aa6b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BB 5096 bytes
font_01_sfnt_off0000eaf2.bin
be812799802d57e52f53767c94dad048690b820d34355889bbfe4458763deeb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF2 10664 bytes
font_02_sfnt_off00010f70.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F70 4324 bytes

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