Malicious PDF — malware analysis report

Static analysis result for SHA-256 989895c4f461d8bc…

MALICIOUS

PDF

81.5 KB Created: 2021-04-03 18:23:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7ff7733feef0b92c3bf411042a1e985b SHA-1: d7f1b980cce90c869002d42f231ce4412775a061 SHA-256: 989895c4f461d8bc5a12a749fd7c991805d606b432d984a50b5a20e60e6a0890
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to distribute traffic to various malicious or phishing sites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://druttle.ru/wix?keyword=la+luna+sangre+july+12+zodiac PDF link annotation
    • https://zivexuxa.weebly.com/uploads/1/3/1/8/131871677/cb1b7356094d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387408/normal_5ffc4863cecc8.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/defensa_siciliana_variante_sveshnikov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478669/normal_604a87b6524d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458622/normal_6037ec3d80355.pdfIn PDF document text
    • https://kopepadozuko.weebly.com/uploads/1/3/4/5/134505487/piwipiwelajave.pdfIn PDF document text
    • https://tedevonefuses.weebly.com/uploads/1/3/4/5/134528644/dd3d94839af87b5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366306/normal_5ff4a4986de6c.pdfIn PDF document text
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/nosilujidulu-ziwuperisuma.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446151/normal_5ff506bdb07a8.pdfIn PDF document text
    • http://doxedisipi.scienceontheweb.net/wadegabeboxorapivojupolow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449192/normal_60568aba2986d.pdfIn PDF document text
    • http://xabudumame.mypressonline.com/youth_mental_health_first_aid_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387807/normal_5fede7c9bf396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_602407891631b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_60435a9f888a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_5fcc244e9dce3.pdfIn PDF document text
    • https://lufuroxula.weebly.com/uploads/1/3/1/4/131408913/2464815.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1801fa0f-56e4-4894-8452-b8e06651d4be.filesusr.com/ugd/868401_de0b24b84f5a4b7d8dbe6affae48344e.pdf?index=trueIn PDF document text
    • http://pedirite.onlinewebshop.net/what_is_bill_of_exchange_definition_in_urdu.pdfIn PDF document text
    • https://07d68bf2-0661-47e2-9ffe-eae068a071af.filesusr.com/ugd/fef806_0ede76112f7643338a25d1a0c14e31d4.pdf?index=trueIn PDF document text
    • http://litorow.myartsonline.com/sarojurujugiwojujagarofi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89C 5460 bytes
SHA-256: 0dd1ddca011bb656db3bdc2e4e33d4e6a31139a2677f61f24e45d0a90dd60986
font_01_sfnt_off0000fb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB57 11792 bytes
SHA-256: 04b3a63ea8056d7e3a9c1fd6d62e654dc3c34cac057c6d2f22f4047ea778a1ec
font_02_sfnt_off000122e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122E0 16176 bytes
SHA-256: 9f4914eee661b0ee52b7d56f83ca1c0c111f1c5d0cc5f10efe511803eb69212c