Malicious PDF — malware analysis report

Static analysis result for SHA-256 059fc26a750269e3…

MALICIOUS

PDF

84.0 KB Created: 2021-06-09 11:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1ee4321dc4c2a1fc4804996dcf26e53d SHA-1: 1f016267f82f877c5a1c2748bd6fb0fc3633db81 SHA-256: 059fc26a750269e3192a6524ef57433a9a5cc3eab21f32b99a9a10c074412cbb
186 Risk Score

Malware Insights

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

This PDF file contains numerous external links, many of which point to disposable hosting services, indicating a link farm designed to redirect users. The primary URL suggests a lure related to movie downloads, likely to facilitate phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://catamma.ru/pbw?utm_term=the+lion+king+tamil+movie+isaimini+download PDF link annotation
    • https://sebuvijanamo.weebly.com/uploads/1/3/4/8/134856810/4716329.pdfIn PDF document text
    • https://kasugokadudibuk.weebly.com/uploads/1/3/4/7/134740653/rinaruwob_mopabu_duvuw_lazux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_5fe759c846851.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379722/normal_5ff0b60dd6e75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444374/normal_60c075f778540.pdfIn PDF document text
    • https://wigabededonekan.weebly.com/uploads/1/3/0/7/130740374/robipojebaf.pdfIn PDF document text
    • https://nopufara.weebly.com/uploads/1/3/3/9/133999240/275379bc6.pdfIn PDF document text
    • https://suwanofanezelon.weebly.com/uploads/1/3/1/6/131636577/3134926.pdfIn PDF document text
    • https://xepesirivow.weebly.com/uploads/1/3/1/4/131408502/mawurotojoz.pdfIn PDF document text
    • https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/jaxoval-degevefama-solojesiwutibef-gebixifavuto.pdfIn PDF document text
    • https://xuwojuzo.weebly.com/uploads/1/3/4/4/134471705/c76c298f9c74f.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/4e22fe93-54a3-4bfd-9762-0e708ff23bbb/un_mundo_feliz_sinopsis_libro.pdfIn PDF document text
    • http://bulafiko.pbworks.com/f/woroluvoru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ae6f311-64b2-48c9-abcf-76734f348e80/fidukadijedusumewigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb65cadd-1d5a-4583-86c5-10d4a919e302/jizonukejibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b44f700-3e59-40bf-a326-f2841ac294d0/simile_and_metaphor_worksheets_grade_5.pdfIn PDF document text
    • http://mibegenav.pbworks.com/w/file/fetch/144441648/kyocera_fs_1020mfp__client_tool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f171ad5a-02ca-4939-8b09-823d5df9098b/61275501931.pdfIn PDF document text
    • http://tosuvop.pbworks.com/f/pirates_of_the_caribbean_4_full_movie_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e474c2ab-5b0d-4597-a0ad-a3c6371965e0/how_to_close_off_dining_room.pdfIn PDF document text
    • http://fevuxowina.pbworks.com/w/file/fetch/144677514/gejoweborerota.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5c87006-c4b1-4f56-8ddd-7184623650db/22343600552.pdfIn PDF document text
    • http://wezenibafasi.pbworks.com/w/file/fetch/144773445/managing_engineering_and_technology_7th_edition.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_off00010aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEB 5308 bytes
SHA-256: 68fe6680b4406ddedd94e037e1be5969d81f965ed023a81312f8d5dc0e3e0af2
font_01_sfnt_off00011ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CED 10912 bytes
SHA-256: 59dee2ae86b19b4a8451f74d8bfc50bcfd2d0b2653c740e2bc097770e3a229ce