Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a80951acc62ca0…

MALICIOUS

PDF

76.5 KB Created: 2021-01-28 05:52:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 0dd874469f4c0f106fd534b089eb3d16 SHA-1: c5e1633eac939c6faea9e0f8cac68a026cccac8a SHA-256: 02a80951acc62ca097a8a35e56553f311dec94338f36a0e0ded93b0f4195ae6b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, likely to trick users into visiting a malicious site. ML and ClamAV heuristics strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious domain for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/wb?keyword=hockey%20stick%20manufacturers PDF link annotation
    • https://cdn.sqhk.co/pirujezexod/RJhZhbu/god_s_country_ringtone_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457318/normal_5fd707f2d81f9.pdfIn PDF document text
    • https://cdn.sqhk.co/xejokenu/jjojhjh/raven_s_night_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/filemowa/oJqicgf/e_wallet_app_source_code.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/07hXCjf/49051786722.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417128/normal_6004bb822e6e9.pdfIn PDF document text
    • http://xoguvux.22web.org/transformation_of_trigonometric_functions_integral_calculus.pdfIn PDF document text
    • https://cdn.sqhk.co/mojikeke/8UxFtjj/dezenawokijejise.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fodusazal.rf.gd/retekaza.pdfIn PDF document text
    • http://xogowakowokavuw.rf.gd/zuxoperotikivegot.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/tulidukez.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/crystal_auto_typer_2._0_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/video_er_professional_for_edge.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/caribbean_cookbook_recipes.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_off0000e363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE363 3488 bytes
SHA-256: f363ef17274618f37db8ce50ecef2602f05b42753b14d7bb3696443648600c47
font_01_sfnt_off0000efec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFEC 5124 bytes
SHA-256: e5d1e894a45fdcd91dd6e71be1f617521e89643cbe31b216f073253818e336a1
font_02_sfnt_off00010152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10152 10372 bytes
SHA-256: 042a1e8508abf1156acb2c3549243ab84cfe435f62e9cff8f586bdd0a30dd532