Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddcb7f0d3f82c7e6…

MALICIOUS

PDF

76.8 KB Created: 2021-02-25 18:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d8181d08e87bb5443d62ebcdbed787f2 SHA-1: da8350c667ea2e88d9ad2989f3f40b13a84344cf SHA-256: ddcb7f0d3f82c7e63a1e8dcf29ad80af5385a4f1c95302358cc67dcb33183014
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://leonvi.ru/123?utm_term=where+is+the+poky+little+puppy', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text fragments that suggest a lure, possibly related to the 'poky little puppy' title.

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://leonvi.ru/123?utm_term=where+is+the+poky+little+puppy PDF link annotation
    • https://cdn.sqhk.co/jeforije/qgcoS22/pidavel.pdfIn PDF document text
    • http://godisibipuvam.22web.org/ccnp_route_300-101_dumps_digitaltut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387928/normal_5ff49a9218bf1.pdfIn PDF document text
    • https://cdn.sqhk.co/sabeludejem/Sljhhju/warren_buffett_stocks.pdfIn PDF document text
    • https://cdn.sqhk.co/vilomikov/Ojdiay6/30386268508.pdfIn PDF document text
    • http://takinodexitimax.22web.org/94695298707.pdfIn PDF document text
    • https://cdn.sqhk.co/jilowepe/rji6ZXj/youth_soccer_kingsport_tn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/wawegomeliba.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/61049889692.pdfIn PDF document text
    • http://mupufekugix.epizy.com/internal_medicine_definition.pdfIn PDF document text
    • http://baminitase.epizy.com/ap_english_language_and_composition_book_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/vegobenituxulige.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/nasisaxomapigemidajol.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/lebozibena.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/95073754910.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/jai_shri_ram_bajrang_dal_photos.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF058 4876 bytes
SHA-256: 4c02ad1b4d0b750d5fac9cff0cdf65ba432c7b32d0ef91a8615f46917f976a05
font_01_sfnt_off000100fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100FE 10888 bytes
SHA-256: 64c944f28990cf4ca0ea8a098b55f2c45653bfe294c2f3f038941d0d35477006

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