Malicious PDF — malware analysis report

Static analysis result for SHA-256 baea64a82e13927f…

MALICIOUS

PDF

145.9 KB Created: 2022-07-02 00:32:58 +02:00 Authoring application: filgian (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 1ae85b1ff03170da4d4b6929ef9ee110 SHA-1: cd974ee9065fc4efcb4734f813b3f38937eb5559 SHA-256: baea64a82e13927fdd4b38589a3c43cac5472975dfadd900dc7e3ab79f518a04
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The PDF document exhibits characteristics of a link farm, with numerous external URLs embedded within it. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a coordinated effort to distribute malicious content or redirect users to phishing sites. The presence of algorithmically generated URLs further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0072

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://bestsmartfind.com/sucked/birdcage/dynamism.immunoglobins/ZG93bmxvYWR8ZFMxY3pCbWZId3hOalUyTnpFeU16QTFmSHd5TlRjMGZId29UU2tnY21WaFpDMWliRzluSUZ0R1lYTjBJRWRGVGww&bWlyY2hpIHRlbHVndSBtb3ZpZSBmcmVlIGRvd25sb2FkIGluIHV0b3JyZW50bWl.priceline
    • https://www.mil-spec-industries.com/system/files/webform/zyrewen441.pdf
    • https://tuinfonavit.xyz/hoodie-allen-all-american-album-download-zip-_top_/
    • http://facebook.jkard.com/upload/files/2022/07/B1T9ujN1JrDGTS3J8CHi_01_7cf685e1ea5756feb6fa55fa0a94c345_file.pdf
    • https://eveningandmorningchildcareservices.com/wp-content/uploads/2022/07/Maya2012crack_LINK32bittorrentTorrent.pdf
    • https://www.tresors-perse.com/wp-content/uploads/2022/07/principles_of_marketing_global_and_southern_african_perspect.pdf
    • https://www.doverny.us/sites/g/files/vyhlif4341/f/pages/2022_final_assessment_tax_roll.pdf
    • https://homeimproveinc.com/demolition-company-gold-edition-crack-patch-download-exclusive/
    • https://9escorts.com/advert/termodinamica-de-merle-potter-pdfgolkes-top/
    • http://valentinesdaygiftguide.net/?p=29342
    • http://marrakechtourdrivers.com/advert/film-india-kuch-kuch-hota-hai-bahasa-indonesia/
    • https://everyonezone.com/upload/files/2022/07/behMZeEmULK1Eszm1ors_01_7cf685e1ea5756feb6fa55fa0a94c345_file.pdf
    • https://www.elfetica.it/wp-content/uploads/2022/07/Download_Ewql_Ra_Keygen_Exe_2021.pdf
    • https://inobee.com/upload/files/2022/07/h4JCH5oEMkJiXgIb2sgE_01_b57faea6a8c7b921f8c4191cd17deea7_file.pdf
    • https://www.ctvsh.com/system/files/webform/Internet-Download-Manager-Crackli-Indir-Gezginler.pdf
    • https://workschool.ru/upload/files/2022/07/xJyPiVCnWeqAR7N59tx9_01_7cf685e1ea5756feb6fa55fa0a94c345_file.pdf
    • https://jayaabadiexpress.com/_verified_-download-ebook-novel-the-chronicles-of-narnia-bahasa-indonesia/
    • https://conselhodobrasil.org/2022/07/01/clash-royale-hacks-mods-for-android-and-ios-no-human-verification-2019/
    • https://mindfullymending.com/penelopemenchacaenrevistahextremo111/
    • https://gamersmotion.com/foxit-advanced-pdf-editor-3-05-keygen-__full__/
    • https://busbymetals.com/citrix-xenapp-65-license-file-crack-exclusive/?p=5316
    • http://www.tcpdf.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000019a4.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x19A4 120140 bytes

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