Malicious PDF — malware analysis report

Static analysis result for SHA-256 59316dc8a3980a00…

MALICIOUS

PDF

81.6 KB Created: 2021-02-18 06:09:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 4890fa2d94915a4d8b12a9b67d5df3fb SHA-1: f2bbf174a9e3bfd87f846c58eb0184fd02408d2b SHA-256: 59316dc8a3980a002f42c55737a954f4e2d109214575680532f261460d93f734
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a phishing or scam operation. The document body, though partially garbled, includes text related to search queries, reinforcing the lure of finding specific content online.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/strik?utm_term=libro+la+iliada+homero+pdf PDF link annotation
    • http://agent-spv.space/lagegura5vrv4.pdfIn PDF document text
    • http://byseles.xyz/sigasaziwululigateromibbifin.pdfIn PDF document text
    • http://veranezos.iblogger.org/68964688156.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415767/normal_6008d2af8a292.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406777/normal_5ff881639f084.pdfIn PDF document text
    • http://salearea.pro/355633392822i47x.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/winerezijudibz39cq.pdfIn PDF document text
    • http://socialwave.me/56021_coby_kyros_updateyhwng.pdfIn PDF document text
    • http://presentinsta.site/87580858861fiau3.pdfIn PDF document text
    • http://purigoguwoz.22web.org/foxibodiluxi.pdfIn PDF document text
    • http://denizan.com/cash_out_day_meaning_cash_appc7yra.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_6014414c1be60.pdfIn PDF document text
    • http://zakovekapi.22web.org/21122648011.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5fed5ec623e2a.pdfIn PDF document text
    • https://luwuruguvuwotom.weebly.com/uploads/1/3/0/9/130969706/caa2dfb56.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://tunadexemuvaru.epizy.com/elementary_linear_algebra_7th_edition_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/rcog_guidelines_hydrops_fetalis.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000decf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECF 4784 bytes
SHA-256: b90d713191f156571291bfa476d9c804d564c8bff2387dcee5fe08987ba87ecf
font_01_sfnt_off0000eef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF9 11340 bytes
SHA-256: 53b0d38cee8cb83cf0f3f47bcd76e78f1ca38ace6b011c607ab835116e2ec97d
font_02_sfnt_off0001144c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1144C 16144 bytes
SHA-256: 8fb2621915dfc007ff2d0e30b281ceb029ddf1b64eebbf5d4dbd926fe97904ad
font_03_sfnt_off0001291e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1291E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.