Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed1d84cd0f9189d…

MALICIOUS

PDF

76.8 KB Created: 2021-03-02 00:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 401499b3e9fbe294751a3c0fde21c209 SHA-1: 3b87f1c8b8602d982012b82d7e5ac4c17e33576b SHA-256: 0ed1d84cd0f9189db2ab2bcafc70f2f2f1ef9ae0908c0a1179e050d24edeb700
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'Detroit michigan child support office phone number', suggesting a lure. The ML classifier and ClamAV detection further support the malicious nature of this file.

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://midufefew.ru/strik?utm_term=detroit+michigan+child+support+office+phone+number PDF link annotation
    • http://auth02mobility.com/dhhs_guidelines_updatee0jd8.pdfIn PDF document text
    • http://airned.ru/the_crowns_faterm02i.pdfIn PDF document text
    • https://cdn.sqhk.co/bisegepamitu/iAdujd9/crash_test_dummy_game_app.pdfIn PDF document text
    • https://nunatazireru.weebly.com/uploads/1/3/4/6/134698050/sujuni_lalipivijaloriz_bipumefob.pdfIn PDF document text
    • https://cdn.sqhk.co/bobimugura/jedgcjf/final_fantasy_16_site_officiel.pdfIn PDF document text
    • https://cdn.sqhk.co/zanuvajebodu/ja2iigc/newest_xbox_model.pdfIn PDF document text
    • https://gazotudigexeb.weebly.com/uploads/1/3/1/1/131164446/0b1ad618b0b896.pdfIn PDF document text
    • http://indital.fun/tonataboniw4y5yf.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/bcSZjiR/55077147717.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/agi8ejc/8108226585.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
    • https://s3.amazonaws.com/genedonapubefe/safimitukez.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/quickbooks_import_chart_of_accounts_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/wuladitimuxuwod.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_off0000e073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE073 5588 bytes
SHA-256: 3ea4782f78d8d18b120ec3c89936fafeba276222eec4997c4ca3650434ea4c01
font_01_sfnt_off0000f34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34D 10752 bytes
SHA-256: 4638f82874385b5bd07b8a5d0e9d171dc921e3b4e0ef062f51279d5ad521a070
font_02_sfnt_off000117d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117D4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e