Malicious PDF — malware analysis report

Static analysis result for SHA-256 df32e83b95e6ffa7…

MALICIOUS

PDF

74.8 KB Created: 2021-02-12 20:25:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ee14ff9027ad6adb5069775a611933d SHA-1: ef444189b967a3c692fdb8a84a7e3db5fe614307 SHA-256: df32e83b95e6ffa7da38f1d580362b5a62e506edd077ff5f45321348957b7219
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, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'maypoin.ru', which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to 'agreement format india'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attack pattern.

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://maypoin.ru/wb?keyword=agreement%20format%20india
    • http://fresh-ita.space/server_rack_shelf_4_postqf7t9.pdf
    • http://prostotit.site/project_management_jobs_in_canada_entry_levelksuhb.pdf
    • http://vafutixon.22web.org/accords_piano_position_doigts.pdf
    • https://vogapixafaroge.weebly.com/uploads/1/3/4/2/134234717/xiruwiwozududovela.pdf
    • http://lesedidunug.22web.org/la_catedral_de_barrios.pdf
    • https://cdn-cms.f-static.net/uploads/4424011/normal_6019b04ca3682.pdf
    • https://cdn-cms.f-static.net/uploads/4489725/normal_5fd2f8bee9f89.pdf
    • http://maykistore.ru/63866937435wnr1p.pdf
    • https://static.s123-cdn-static.com/uploads/4382429/normal_5fc7613b2ad11.pdf
    • https://levonosaxedose.weebly.com/uploads/1/3/2/6/132695543/zurunowudesemik.pdf
    • https://static.s123-cdn-static.com/uploads/4384836/normal_5fe44fc3c5cb2.pdf
    • https://vemenujobife.weebly.com/uploads/1/3/5/3/135399872/501bc0ff5b.pdf
    • https://static.s123-cdn-static.com/uploads/4487916/normal_5fe3fb7941eae.pdf
    • https://static.s123-cdn-static.com/uploads/4451047/normal_5fdef39153828.pdf
    • https://nojinogexosop.weebly.com/uploads/1/3/4/6/134695112/7210594.pdf
    • http://murerejomijuv.22web.org/tree_brushes_for_photoshop_cc_free.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/firigugixujotov/tifituvosobu.pdf
    • https://s3.amazonaws.com/kovezux/archery_king_zoom_mod_apk.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_off0000eaea.bin
8605cbcde9c2d8dfc03b80c3b86d020ea072e357179d13047063faa35ce496f0
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEA 5008 bytes
font_01_sfnt_off0000fbdf.bin
23e90c13ee9465e93b61f5abe3caa84320f8ad0eeb6f15326a11b60e52373d83
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDF 10028 bytes