Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02f0678dfdea619…

MALICIOUS

PDF

86.3 KB Created: 2020-10-28 22:44:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7be3a78f91e3e57e08bc3a1d712fde42 SHA-1: 98310b2777d01fe33ac6cb52d695ef3c1f82149a SHA-256: e02f0678dfdea619900e33f4327179467fb989759eabeec1020a4c2ae37aa1e4
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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.
  • 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.club/pify?keyword=source+filmmaker+tutorial In PDF document text
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/banorafedesibikidure.pdfIn PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/fdc80.pdfIn PDF document text
    • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/wafovupodenelinu.pdfIn PDF document text
    • https://degepuwenezeg.weebly.com/uploads/1/3/1/6/131607310/tutunuzivowe_vinibolozo.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kadijamiruvinugeno.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8675/0913/files/factors_affecting_adsorption_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae3a0b79-0023-462b-9537-f87a55a25d88/19656162131.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/antecedentes_historicos_de_la_administracion_en_enfermeria.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/dubusanipipoxigegojigol.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/miseniwareda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6754/6037/files/addisons_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5780/2137/files/descargar_codex_gigas_en_espaol_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/295b4439-3a5f-4245-9969-898aeb85d2f0/libros_de_ingles_nivel_basico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2465/6802/files/avengers_the_initiative_read_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1349/7251/files/wifi_obtaining_ip_address_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05f70b83-6950-4b6b-b723-ebd56989fdd2/caracteristicas_de_la_capa_4_del_modelo_osi.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/duxaseneso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3319/8498/files/xezozevenimol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14d9dd4f-3ff6-4440-b759-f0f58a126a32/neverwinter_scourge_warlock_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8996/2184/files/70159026835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e7a187-dabc-4959-9d6e-0349ef6a53b7/gasikasiret.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A4 9856 bytes
SHA-256: 5214ec8e74afa6349b3989e7004e23cf1f22f46a166ea7f10120074aca5bb5dc
font_01_sfnt_off0000d1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B3 2952 bytes
SHA-256: cb9072f881c1fe0ad8900bbcc5a20a23fabb306412f64e001cac76c2a9509f2c
font_02_sfnt_off0000dc42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC42 4792 bytes
SHA-256: b1e4ceca071bc812dbbcd964dc8cc700e98e6e755737ded894ecf01df26c0c67
font_03_sfnt_off0000ec7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7C 6272 bytes
SHA-256: fc96500cb20f10ea1b015bf721f5df444f089f3b84d598e28bfe989403d01fae
font_04_sfnt_off0000fcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC2 11996 bytes
SHA-256: 3dda941227873032b91ee37a95e67b94e81c1e6d0d49c803f291e44447bc67a9
font_05_sfnt_off00012593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12593 16440 bytes
SHA-256: f5c7f15069ef96cc4286dc88395c17f22690ece731dd9a9a978d73e8481e83ea
font_06_sfnt_off00013b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B90 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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