Malicious PDF — malware analysis report

Static analysis result for SHA-256 94234be05c3834f8…

MALICIOUS

PDF

76.5 KB Created: 2021-03-10 21:29:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bbbedbb887c120b591e2f2d2ad6754e8 SHA-1: a2b25369777cf497bb7013451f3391147f44d4ae SHA-256: 94234be05c3834f81baa97d38b5c34bba875ab7cebee353cf0afe52d1061e5f8
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://dugedepap.ru/wix?keyword=drastic+ds+emulator+apk+no+license+reddit PDF link annotation
    • http://paxejunon.mygamesonline.org/what_is_a_ir_extender_cable.pdfIn PDF document text
    • http://gekodejevotug.medianewsonline.com/rodisureteteruliwusazoxe.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/69888058204.pdfIn PDF document text
    • http://zaranes.getenjoyment.net/zudexuvawuvuda.pdfIn PDF document text
    • http://sadinexiwa.mygamesonline.org/stephen_king_the_stand_full_movie_free.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/41445919597.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/63490431816.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nijudow/lose_yourself_instrumental.pdfIn PDF document text
    • https://ab60d57a-1f92-408f-9079-0b325776b613.filesusr.com/ugd/724fb5_d235b496bf0f48afb1c781f0551d0baf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8145612-712f-4e47-acf2-5c744b3f34e1/oll_parity_algorithms_4x4.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/fedajalag.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/4371160071.pdfIn PDF document text
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_899b3ad2d4b64799a0f67b497e5fc7a6.pdf?index=trueIn PDF document text
    • https://a44a9d9e-3ce9-422e-9b5d-83ef2d4925cb.filesusr.com/ugd/3234e9_75f57913b1f24f1abce241dd19a7fd3c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xozeb/pisoboxakedifosen.pdfIn PDF document text
    • https://99442e0c-e188-470f-b1e9-a2082f9e7f28.filesusr.com/ugd/2274a7_a388d1815eb04f4395b618c6246fdb38.pdf?index=trueIn PDF document text
    • http://faxiruvud.myartsonline.com/77739838090.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/cube_mtb_bike_size_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc91d8f-ce50-4819-9f3b-9bf166710ebc/can_electrical_engineers_work_at_google.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_569017a5c12940148c7ba817226c6309.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/zibususib.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/nationality_checking_service_birmingham_form.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/napodivexozaweteri.pdfIn PDF document text
    • http://wuragumok.atwebpages.com/nursing_diagnosis_book_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/tizetafesasapekifijopi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0F 5280 bytes
SHA-256: 82ec171c7cdef63ae5559d1182d5742d8562a4cc556820d54761e8a0fc650428
font_01_sfnt_off0000fef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF0 11024 bytes
SHA-256: bb2ae47868e66b21c087d73a763c54552cf70ed236cd53b0ffa495b2625b7349

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