Malicious PDF — malware analysis report

Static analysis result for SHA-256 a460a3e1b5fb8296…

MALICIOUS

PDF

94.0 KB Created: 2021-04-01 06:19:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: b6cf6e3b2ce4d90339c39ee9f902b6b0 SHA-1: 1a60f5d97379173a22b6610417a2a956e6da6825 SHA-256: a460a3e1b5fb8296a087c3ae8e4b438e70bff5b0a562d098408dbc2a901efd85
154 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO poisoning and phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, suggesting an attempt to manipulate search engine results or direct users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of the file, likely involving phishing or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8846

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
  • 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.
  • 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 https://nipisod.ru/aws?utm_term=does+aldi+do+gluten+free+products PDF link annotation
    • http://kavopiluxum.iblogger.org/maytag_centennial_dryer_not_start.pdfIn PDF document text
    • https://lodovape.weebly.com/uploads/1/3/5/3/135350971/1154276.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/gPJ4jaV/salipof.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/hiignjg/nasal_spray_for_dry_nose_and_throat.pdfIn PDF document text
    • https://romarifekaxa.weebly.com/uploads/1/3/2/6/132683260/soragasenori-futupezavadesij-sibab.pdfIn PDF document text
    • https://cdn.sqhk.co/busumodofu/FxjhXjg/diy_spin_the_bottle_board_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/c7aidjg/hot_romantic_videos_whatsapp_status_share_chat_tamil.pdfIn PDF document text
    • https://tigidejuremu.weebly.com/uploads/1/3/4/5/134502839/3d8ca1ac81d8f3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://55963656-6eb1-4b25-bcd5-bb835d65808b.filesusr.com/ugd/0064ae_46672354618f495bbf72b1e7120d831c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pomaxa/bose_901_series_v_speakers_review.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/juvuf.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/628121172.pdfIn PDF document text
    • https://8c17aa34-c454-4d6c-a218-8929c845e329.filesusr.com/ugd/808cd0_7bcd8321d1d5445eb5951688509b05ee.pdf?index=trueIn PDF document text
    • http://garapaf.epizy.com/download_crack_autodwg_to_dwg_converter.pdfIn PDF document text
    • http://mipetilivanuf.epizy.com/gajoduzefel.pdfIn PDF document text
    • https://b4095e1f-5e43-4c35-8b28-ff0c3185c247.filesusr.com/ugd/9cc3de_82a98072d3b647469f3ab0d081735829.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/paropabaru/kivatu.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/gedaseriwimuruvaw.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/action_crack_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/dakitadiw.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/84563927713.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/soul_food_restaurant_menu_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/como_se_formou_o_absolutismo_na_frana.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CBF 5320 bytes
SHA-256: 5cc4bcf7b3d34fde6dc8030bdaab780f4fa31191380e7e1e8402fdfd18296227

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