Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa80c1c4b1228b15…

MALICIOUS

PDF

44.4 KB Created: 2020-10-13 20:07:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: cbd87591ea4ef9e6a5a1cb767418ce33 SHA-1: 832ce3d68d05deba19e777c0efd5cc8247b11039 SHA-256: aa80c1c4b1228b154b7948b4ab09f6149e33d49f03cf7691e02e28de54fb2919
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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://ggtraff.ru/strik?keyword=clash+of+clans+hack+game+mod+apk In PDF document text
    • https://site-1039307.mozfiles.com/files/1039307/49246558017.pdfIn PDF document text
    • https://site-1043445.mozfiles.com/files/1043445/dikumerafabazitalovi.pdfIn PDF document text
    • https://site-1039390.mozfiles.com/files/1039390/53735643538.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/1867598.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kekikefuwu.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/nipomomuka_gisotufeje.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/b4b3eb38b.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/b919b1ed8f.pdfIn PDF document text
    • https://site-1043160.mozfiles.com/files/1043160/logurezogarodexotolorilu.pdfIn PDF document text
    • https://site-1042679.mozfiles.com/files/1042679/didezarivuvefuxa.pdfIn PDF document text
    • https://site-1043258.mozfiles.com/files/1043258/xiwijopaxezulefupaj.pdfIn PDF document text
    • https://site-1042919.mozfiles.com/files/1042919/koduluraladoligigopenabid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2149e970-f6b4-48ca-9a79-5914c2d69f23/69466881392.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a74c44d3-4074-48a6-9fb3-96d313e0dfd9/xipogaregivezemavebevug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ecb6552-9e4d-47bb-8996-987296dd4912/toliweteropo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6fdd070-818e-4a87-9603-1d0420670623/fifoletiwalegamilili.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_off00006e22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E22 5444 bytes
SHA-256: 047262bec706e9f07793814b5f7e8b2d61590527ec25a4bcd461df88606b9f21
font_01_sfnt_off0000807e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807E 10572 bytes
SHA-256: 492544803315d86f1eb339d9fa576f16cc12c3bb94dccfeff34121ddef92041a

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