Malicious PDF — malware analysis report

Static analysis result for SHA-256 338ce1a3bc426ee7…

MALICIOUS

PDF

38.6 KB Created: 2020-11-04 04:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 0bb2f5872d9c2a9a36a6fe6e417d946a SHA-1: 0a1772a32dd5ab29d4f4a2a710339ca1645d87af SHA-256: 338ce1a3bc426ee7d32c04a943a783fb24dc0beccb80f22c4d42f7a547c4d81d
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 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=sly+cooper+cane+replica+for+sale In PDF document text
    • https://nirotobilimob.weebly.com/uploads/1/3/4/4/134484477/sudela.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/jexogo.pdfIn PDF document text
    • https://tuxitusonodedin.weebly.com/uploads/1/3/0/8/130873989/5516544.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/wotareropajewub.pdfIn PDF document text
    • https://zeginuvo.weebly.com/uploads/1/3/0/7/130775519/tivuxarerujov-kagozuf-jaxolezipupe-kegiwaxi.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3731638.pdfIn PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/wepixixifob.pdfIn PDF document text
    • https://weroxodadugofu.weebly.com/uploads/1/3/4/5/134503620/100459.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://cdn.shopify.com/s/files/1/0496/2680/8473/files/27677321211.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/witetenuvejaripenepebor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1d7a370-e5af-4685-b892-88f40e71720a/botutejepowufaxugozawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a9203c5-d2da-4c87-b7bf-0e555061f7ac/59317472238.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/rotoz.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_off00004d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3F 4920 bytes
SHA-256: 65ca1fb5b4535669124334fe7bb33f4fc91166e175ebc13eb9d22d34f3849df4
font_01_sfnt_off00005df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF2 9984 bytes
SHA-256: 65034682731470a375cece18a0df2db4eeb56f625754bbf49b6b89c6c78bb24c
font_02_sfnt_off00007fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC6 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e