Malicious PDF — malware analysis report

Static analysis result for SHA-256 53da77bda660379d…

MALICIOUS

PDF

76.8 KB Created: 2021-02-28 10:55:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 327b96d33c597d8cc92f3d29bf210cf8 SHA-1: 5baa07fb0cc39c8088ce5dd8d67009076e54c45b SHA-256: 53da77bda660379dcba3d692794d58b646be403de1420ea5cf2739a90eb2d965
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords that appear to be part of a lure.

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://resalured.ru/wix?keyword=human+design+projector+6%252F2
    • https://cdn-cms.f-static.net/uploads/4498893/normal_5fdb678573a28.pdf
    • https://cdn.sqhk.co/zalopubid/TihMgfn/tenuvuzupunakolaxalabigo.pdf
    • https://cdn-cms.f-static.net/uploads/4410462/normal_60215f98d9a6b.pdf
    • https://cdn-cms.f-static.net/uploads/4413966/normal_60245097c4828.pdf
    • http://dresdenpharma.ru/dexodejozunelulijalege73k64.pdf
    • http://remeik.ru/missouri_river_chamberlain_sd_fishing_reporteat64.pdf
    • http://yogait.space/self_esteem_worksheet_for_youthq6fo4.pdf
    • https://static.s123-cdn-static.com/uploads/4501770/normal_5ff81c069b54e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/remeranexe/74382911659.pdf
    • https://s3.amazonaws.com/xarojapi/xotetamubizojuriwij.pdf
    • https://s3.amazonaws.com/woxorojero/ions_worksheet_chemistry_answers.pdf
    • https://s3.amazonaws.com/genedesowul/65416034656.pdf
    • https://s3.amazonaws.com/jedobufudajewu/tajodupigubar.pdf
    • https://s3.amazonaws.com/vuzufexarevima/raluzagefeba.pdf
    • https://s3.amazonaws.com/jevelel/gcse_maths_worksheets_with_answers.pdf
    • https://s3.amazonaws.com/zexozavo/how_to_program_lux_1500_thermostat.pdf
    • https://s3.amazonaws.com/minaxigevani/xitevoxapaxumedunijurozo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f029.bin
f41e6166a2bb10b0ce4e07c19fa3afa2284db41f767f84a221ebadd95027b8ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF029 5720 bytes
font_01_sfnt_off0001039a.bin
c65e99820ad3cf82c097d8ae0d2a2ea626f4973434a584fa39d5e92b15eb3f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1039A 10036 bytes

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