Malicious PDF — malware analysis report

Static analysis result for SHA-256 a294c3a20d64b118…

MALICIOUS

PDF

79.4 KB Created: 2021-03-24 19:51:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e48f25610be79021c2a583814fdcd935 SHA-1: 71237597b681da846921e590ec907e005af65913 SHA-256: a294c3a20d64b1187ede423275a9244f3e5660c60d3112b05434a669502cb790
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI that points to a suspicious domain, identified as a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/wix?keyword=government+jobs+maharashtra+2020
    • http://duwinijuj.mypressonline.com/pulijemupe.pdf
    • http://zatoxuvisovapuf.sportsontheweb.net/how_to_reset_a_schlage_lock.pdf
    • https://static.s123-cdn-static.com/uploads/4489734/normal_5fed3ed4eb56f.pdf
    • http://fosavaxenu.mypressonline.com/how_to_extend_fios_wifi_signal.pdf
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5fd878fccdece.pdf
    • https://cdn-cms.f-static.net/uploads/4454436/normal_60446a6132a8f.pdf
    • https://static.s123-cdn-static.com/uploads/4491173/normal_6003e7891dfca.pdf
    • http://nejupike.mygamesonline.org/bohr_s_model_worksheet.pdf
    • https://cdn-cms.f-static.net/uploads/4383692/normal_602d992cda979.pdf
    • http://bekopomulasebi.getenjoyment.net/mares_puck_pro_bedienungsanleitung_deutsch.pdf
    • https://cdn-cms.f-static.net/uploads/4483602/normal_603fdb7bbf3d9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zidenigad/what_happened_during_the_renaissance_period_how_was_the_music_like_in_the_period_brainly.pdf
    • https://s3.amazonaws.com/gagagakigibapo/xevabotijagoxu.pdf
    • https://s3.amazonaws.com/xeropizuwe/57749514128.pdf
    • https://uploads.strikinglycdn.com/files/b956c253-91ee-4f98-90e5-144301786bcb/nelafisixerotixewimof.pdf
    • https://s3.amazonaws.com/rodigapigeta/iis_console_for_windows_7.pdf
    • https://uploads.strikinglycdn.com/files/c82fd952-9864-4f62-a652-a538b7600d51/cunto_cuesta_un_metro_cuadrado_de_terreno_en_mxico.pdf
    • https://uploads.strikinglycdn.com/files/35ffa2f8-eba8-4ad4-b9c5-2ed06b27a5ca/xolavalowixozu.pdf
    • https://s3.amazonaws.com/lewuli/bollywood_songs_free_online.pdf
    • https://uploads.strikinglycdn.com/files/95dc7e76-a2bb-40c8-9667-ce423502f4be/pojifufirajineraxatubikuz.pdf
    • https://uploads.strikinglycdn.com/files/3ffa3c0a-005e-4a90-9811-89f3723f6905/21395848185.pdf
    • https://s3.amazonaws.com/jotizifime/gawopusotawimapoje.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_off0000f805.bin
8dd3f5098c6ecb1014111af72829e09d229be05652fe47dad31fc9e0f4ad27bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF805 5476 bytes
font_01_sfnt_off00010a7d.bin
484e8703905c9b9066b96e6ecfc8c2db3e37749a0e49e061d1b0328f6cf66dbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7D 11140 bytes

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