Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ca8ee829dd93b5…

MALICIOUS

PDF

70.5 KB Created: 2021-03-27 17:19:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8999180b79c74e5990fbe4b3e8ce2f8e SHA-1: 925d622400044feb5c21c7828b934b9b3e1f28c6 SHA-256: d2ca8ee829dd93b5e88f7407365b80da551f3fc307cb8416c3ae65abe1b6b619
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that are likely used to deliver malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, with the primary URL suggesting a phishing or malware distribution lure disguised as a search result. No scripts were extracted, but the presence of multiple external URIs points to a downloader or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nipisod.ru/wix?keyword=the+tragedy+of+romeo+and+juliet+act+1+cloze+activity+answers+pdf
    • http://fobativ.mywebcommunity.org/why_is_my_amana_washer_not_starting.pdf
    • https://xiwajobuxeke.weebly.com/uploads/1/3/4/6/134637113/c1192d8245.pdf
    • https://cdn-cms.f-static.net/uploads/4468823/normal_5fd0e2a96e9d0.pdf
    • https://revafabeku.weebly.com/uploads/1/3/4/7/134708131/2476947.pdf
    • https://cdn-cms.f-static.net/uploads/4478146/normal_5fdb94f8d2b97.pdf
    • https://vigelabed.weebly.com/uploads/1/3/4/3/134368569/bilabuz.pdf
    • http://tututot.mygamesonline.org/gaxofuxegulitefikolin.pdf
    • https://static.s123-cdn-static.com/uploads/4414352/normal_5ff5cf0b97512.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b3d514fb-2165-4256-bfad-1b8eae62fa70/rerulawapekiviraku.pdf
    • https://s3.amazonaws.com/vabemavuputenif/ps3_controller_on_ps4_2020.pdf
    • http://vugugemo.atwebpages.com/17340796975.pdf
    • https://s3.amazonaws.com/widofafane/how_to_open_a_stackable_washing_machine.pdf
    • https://69a21580-3c80-4f81-8097-1ec0bc18215d.filesusr.com/ugd/bd7df1_6c1ef4254a9f407e94b0a0c58e8a0212.pdf?index=true
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_95593a29021a4b36bf782ab2f123fa61.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d3b29cff-cc04-430d-a4cc-2b34a14ff29d/how_to_do_a_journal_article_analysis.pdf
    • http://vugugemo.atwebpages.com/zevamikawawojuz.pdf
    • https://uploads.strikinglycdn.com/files/e278dbd3-dd7a-42d1-a407-e48ec3ff6817/44383334504.pdf
    • https://uploads.strikinglycdn.com/files/99538a65-fff7-427e-a458-64d2a475e8fb/duxepoz.pdf
    • http://muwuvago.atwebpages.com/satopebu.pdf
    • https://s3.amazonaws.com/bededuxotulapil/zunatulitoza.pdf
    • https://a3e8d6b6-68ee-4625-a313-a25a09dbd39d.filesusr.com/ugd/312e12_cb2ef20e04ed46efa14f148607926a66.pdf?index=true
    • https://uploads.strikinglycdn.com/files/73287c97-d351-4195-84b7-596c07c93682/bhagavad_gita_chapter_15_recitation.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_off0000d61d.bin
5598767ddb15bcfc4108ce86a5297fdd214b29dc0185ee9f3649d0cbe0395099		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD61D 5948 bytes
font_01_sfnt_off0000ea65.bin
c74e7819019a17a5978f50fae567e3f902a024c52ddb3a2ffbe9acd3ea981b6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA65 9844 bytes

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