Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c1444a46d1e9dff…

MALICIOUS

PDF

197.6 KB Created: 2021-05-11 08:13:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dfc4aea6af82aab3daecfac1328c142a SHA-1: 77d669c0f7e1d8ad128bd79099b58ab83198aba2 SHA-256: 4c1444a46d1e9dff0086a45b9e4240c8d87ce71080478034da8bd568bb8ba46a
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution. The presence of an external URI heuristic further supports the attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9679

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://zajinet.ru/strik?utm_term=seven+swords+of+sin+pdf
    • https://static.s123-cdn-static.com/uploads/4454822/normal_600468434089f.pdf
    • https://static.s123-cdn-static.com/uploads/4494433/normal_5ff6d2dc365fe.pdf
    • https://cdn-cms.f-static.net/uploads/4376621/normal_60420a8067dec.pdf
    • https://static.s123-cdn-static.com/uploads/4481157/normal_5fec10f09df66.pdf
    • https://cdn-cms.f-static.net/uploads/4446395/normal_60435b1a92052.pdf
    • https://static.s123-cdn-static.com/uploads/4484126/normal_6006c503e44b5.pdf
    • http://smilex.club/attendant_care_expense_formvqqr6.pdf
    • https://static.s123-cdn-static.com/uploads/4474719/normal_5ff6630d25113.pdf
    • https://pavibizad.weebly.com/uploads/1/3/0/7/130740264/9765489.pdf
    • https://cdn-cms.f-static.net/uploads/4469375/normal_604830734df1f.pdf
    • https://cdn-cms.f-static.net/uploads/4476564/normal_601e3e6f7e9a9.pdf
    • https://waliruwixogipi.weebly.com/uploads/1/3/4/0/134016871/e2d6dd884b9.pdf
    • https://static.s123-cdn-static.com/uploads/4384318/normal_5ff5df3d5cab1.pdf
    • https://static.s123-cdn-static.com/uploads/4365646/normal_5fece61aa5ef3.pdf
    • http://hdvideo.design/42962757259qlkh8.pdf
    • http://useraisins.pro/2005_dodge_ram_1500_5.7_hemi_towing_capacitywu894.pdf
    • http://topstop.site/reading_comprehension_exercises_with_answers_grade_78fibd.pdf
    • https://cdn-cms.f-static.net/uploads/4454813/normal_603a7dd890095.pdf
    • http://dkmz2.club/19054379744r6u3z.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zedudo/arbol_de_decisiones_investigacion_de_operaciones.pdf
    • https://s3.amazonaws.com/zevutebulaworel/creative_writing_rubric_high_school.pdf
    • https://s3.amazonaws.com/simujix/79140243729.pdf
    • https://s3.amazonaws.com/jifedefujodu/sizedev.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c7e.bin
eaf78c2e07a39645befe81fe338ad8493cc3c07f5b65ba51c2a474f6960357dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C7E 43372 bytes
font_01_sfnt_off0002c019.bin
222825ed7f1aa4a634c823b2f7d09c2621f7a9f7d0514900ad6ce77a9d798e59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C019 4756 bytes
font_02_sfnt_off0002d055.bin
21da784678e153e59c1bc87faccfe932f7a77fa39ea374dedd185b1841f1dd98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D055 12072 bytes
font_03_sfnt_off0002f77f.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F77F 4324 bytes

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