Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd8f0ffc6ca7f6a…

MALICIOUS

PDF

37.9 KB Created: 2020-10-28 22:49:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 45f3f18047d7fc3de536b021f6cfff51 SHA-1: 2e74729ee3caffe23f5a6e51aa8a34ba7bdf7b55 SHA-256: 6dd8f0ffc6ca7f6a356015a33e2545a29e18f9fd0dc6c02e8d68e2dd159c77d9
94 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 an ML classifier. The file 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 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/aws?keyword=inline+water+pump In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_5f98131e18777.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f88f32ed0da1.pdfIn PDF document text
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/xiradibazuloduva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425924/normal_5f9875dbe557e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378618/normal_5f97cc687b336.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/mevaxapun-pinugese.pdfIn PDF document text
    • https://mufebukevep.weebly.com/uploads/1/3/4/0/134096334/6eeaad40af5f100.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368731/normal_5f89618e13bbb.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/eb0a6.pdfIn PDF document text
    • https://kafasomawupi.weebly.com/uploads/1/3/0/7/130775431/sewixemomer_kimexazij.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/gegetajuzixu_saralajewazamok_livaza.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/f616ffa6-239e-4060-b9ee-d4f254e55489/likiwifuvexef.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/boxing_training_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/dikuged.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f69b5a2-943d-45cc-af81-6c62986957ba/tekuwodifojow.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/ce_marking_self_certification.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/cerebrovascular_accident_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/capital_letters_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/668dc8da-fdd8-4d67-81b4-73f483ef9370/wimusevafeveg.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/certified_ethical_hacker_v10.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/abscesso_cutaneo_em_caes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed6023ff-2d27-48f9-ac9c-c089159fdaf3/proceso_de_elaboracion_de_tortillas.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_off00004cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB1 4588 bytes
SHA-256: 3a62763e9cd58d6f80b83aa32a27391f4e4f810b5701f2b1dd51aed05274522c
font_01_sfnt_off00005c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2B 9392 bytes
SHA-256: 66e3ea226e56770f01356c643a17c4e96e74aff7ffc6e0dbdcaac32fb2a84b4a
font_02_sfnt_off00007c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C50 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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