Malicious PDF — malware analysis report

Static analysis result for SHA-256 759e83626986e61d…

MALICIOUS

PDF

102.9 KB Created: 2021-03-30 06:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52cff7a8d2e7e9a83c85301e47772144 SHA-1: 960921dbac804e4954af59c80842ec3145d33360 SHA-256: 759e83626986e61d8fd139a8bd02bbc0f16bde9fb764aa95a78d1dcc4065cba4
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 5

  • 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 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://botokaw.ru/strik?utm_term=marsha+linehan+dbt+workbook+pdf PDF link annotation
    • http://mon-cmso.best/44518641835mofd1.pdfIn PDF document text
    • https://fuxexuwamonem.weebly.com/uploads/1/3/5/3/135387882/bikinumupozisodes.pdfIn PDF document text
    • http://varistop.site/wusemexipetubepawuwap0vay.pdfIn PDF document text
    • http://excschool.ru/sistema_muscular_humano_completozx5p5.pdfIn PDF document text
    • https://vidimepimexuja.weebly.com/uploads/1/3/4/6/134626803/6326904.pdfIn PDF document text
    • http://evakuator-uga.ru/minonusasegutasoneejlst.pdfIn PDF document text
    • http://teksalle.xyz/titanic_blame_crossword_answersdwpy8.pdfIn PDF document text
    • https://pibefugaradaxo.weebly.com/uploads/1/3/1/3/131398186/95abc.pdfIn PDF document text
    • http://qrastenmap.online/wiserezcirp.pdfIn PDF document text
    • http://fuwiduwoxobol.mygamesonline.org/46352635396.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447258/normal_5ff185c77d8da.pdfIn PDF document text
    • http://levantemosaic.com/nexamesd9of.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505326/normal_600c110c1e1a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489595/normal_6009d250409cb.pdfIn PDF document text
    • http://naturagrush.space/league_of_legends_stickman_hack_apkczr0s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474205/normal_5fdb10a81f0e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394079/normal_5fe544a7cce81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419195/normal_5fc78d333333b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480897/normal_6003f62ec6b3f.pdfIn PDF document text
    • http://tuxesimufimiti.mypressonline.com/dunijikoresefebidevubaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403263/normal_602ce2f9472ed.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
    • http://jatoxat.atwebpages.com/lajutuzizuletokofo.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_off000145ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145FF 5216 bytes
SHA-256: a2b62086640e9084c05dbafeca59b373bf216c673e8b7bab9d42cf2a7dbede99
font_01_sfnt_off000157ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157BA 11120 bytes
SHA-256: bde319644b8b1e158cfa6e3785d8d1af542e01523ae2a117bbcbfc8e3c8310be
font_02_sfnt_off00017dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17DBC 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230