Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb01c0d69e789b5…

MALICIOUS

PDF

38.1 KB Created: 2020-10-05 02:35:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6376c386a5cb75acf2681e356a3720f9 SHA-1: 0b14a9849ef50294d2f0ffe2a12d3b1910e00e36 SHA-256: 0eb01c0d69e789b5909be3a7ca84d65e3be09669ad2514a9caffe59740aa0aa7
132 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gettraff.ru/strik?keyword=aqw+quest+id In PDF document text
    • http://files.texasmonkeybusiness.com/uploads/1/3/2/6/132681192/964115.pdfIn PDF document text
    • http://mozosano.aprilallysonabel.com/uploads/1/3/0/8/130873872/dimebamuxu.pdfIn PDF document text
    • http://luloba.brightlikeblack.com/uploads/1/3/0/8/130813979/wuvoxuvofilutop-fesububozijuna.pdfIn PDF document text
    • https://site-1037205.mozfiles.com/files/1037205/43666062833.pdfIn PDF document text
    • https://site-1037279.mozfiles.com/files/1037279/dabewuxaweresokifefa.pdfIn PDF document text
    • https://site-1040006.mozfiles.com/files/1040006/3564618643.pdfIn PDF document text
    • https://site-1043154.mozfiles.com/files/1043154/24964677630.pdfIn PDF document text
    • https://site-1038442.mozfiles.com/files/1038442/pinafevagosulit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/ketetegemejed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/continental_true_contact_tour_215_55r17.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/game_killer_apk_android_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1581/0457/files/kodalerobizezagaxikek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8815/3250/files/wakaxinutonubaponudufinom.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A89 4688 bytes
SHA-256: d457b64083c7fa82652b72fbc676723c06bd90691e9c49a02dd5cb30c9af3c7c
font_01_sfnt_off00006aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA3 9852 bytes
SHA-256: 9c8f7ae1e8776909ed05ab42e7e2946dc2e7656cf8ecb848fcc7fd970cee5f5b