Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4986276b637a1ae…

MALICIOUS

PDF

81.0 KB Created: 2021-05-18 01:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: b08d737110c30a6305dc829f41d884dc SHA-1: 7d780df9fa2c99fc98e0d812f90dd381088f8916 SHA-256: c4986276b637a1aea9d84c184b4c8050e07e78ef9efe7db6c6e3235b705e52fa
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that leads to a domain associated with malicious activity, likely intended to deliver a second-stage payload or phish for credentials. The document body, though heavily obfuscated, suggests a lure related to business planning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/strik?utm_term=business+expansion+plan+template+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449599/normal_60243252021ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384304/normal_604df19e448e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426556/normal_5fec4f6b1c082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413978/normal_602226fa682b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426679/normal_5fed7a82ef8a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482189/normal_5fe780615012c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402504/normal_6052d97b89bf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446942/normal_605bfc3646775.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475562/normal_603caa704963a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_6055bae2a18a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481069/normal_604d8cbaca438.pdfIn PDF document text
    • http://liwonixaxe.iblogger.org/kigamazitufotaniliwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458616/normal_5fd04f29890b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451744/normal_5ff4c18ab274c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375525/normal_6046897347c0e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jenurinufaka.rf.gd/cannon_scout_24_gun_safe_review.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/contrato_alquiler_local_comercial_nueva_ley_2019.pdfIn PDF document text
    • http://wifapig.epizy.com/texax.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/doluwusojusa.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_off00010078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10078 5164 bytes
SHA-256: d586895d255c9efe50763e4bdef168a958359d9f2d940c5d0b7c12a951c13ce7
font_01_sfnt_off000111fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111FA 10868 bytes
SHA-256: 2eba3ad78189bd29ab9db7eaf03c271918bd53fb8478200fc4398d34f73300d1

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