Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea0b5c288cc4db7…

MALICIOUS

PDF

71.6 KB Created: 2020-11-05 06:15:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 372cad9844b153d912247d45f2d9efad SHA-1: a53c7838b8db84db869f095ca6961674b2e42526 SHA-256: 1ea0b5c288cc4db79e532da56b3e8962fcddb3cb1fd575fef1aa7dcfb73a9a53
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ttraff.me/123?keyword=taylor+swift+songs+download+mp3+free In PDF document text
    • https://ritosameb.weebly.com/uploads/1/3/4/2/134266106/9216635.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/bibesekukemugedovofa.pdfIn PDF document text
    • https://neburaguvud.weebly.com/uploads/1/3/4/4/134477844/bexifiwigufe.pdfIn PDF document text
    • https://munujagafunudo.weebly.com/uploads/1/3/0/8/130873736/fukizesifod-bigiti-solalufama.pdfIn PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/c52218.pdfIn PDF document text
    • https://fobuxowomi.weebly.com/uploads/1/3/4/2/134235628/difobalijad.pdfIn PDF document text
    • https://falibapop.weebly.com/uploads/1/3/3/9/133997194/6f3ba14e583e46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/72a2bf14-289f-4b53-9845-800dff0ecb86/auvio_sound_bar_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56f6e5ed-2f98-4d4e-b1dc-d11071746307/galeluzasokamedijolisu.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/download_astrill_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2897/9119/files/chancellor_s_list_uno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ac0dd2d-6877-4ab7-b2c9-1a62e20c5a00/43367375385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/318d8f66-3015-4c37-b84b-0c04fb124c6a/91799097152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee2f9314-a261-4e8f-9ed2-8ccc5510fc53/american_lion_andrew_jackson_in_the_white_house.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf7f215d-70d1-456a-8b84-c1e98d2d5c57/xemix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98f4ac25-d9dd-46e4-a4af-0875400474ec/liwipexasobakujugefisixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/6102/4185/files/58024154533.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA0 5456 bytes
SHA-256: ede0f7152eaf173c54236a35ef4a58257a294dbd3829608f60f3ca38b9444b46
font_01_sfnt_off0000df2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2D 10664 bytes
SHA-256: 87c2c98caa07af192f625cb1c28518eb74425fcfd96dac64bf44dae527a6f5ae
font_02_sfnt_off000102c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C6 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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