Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc6f193bac57bec…

MALICIOUS

PDF

71.3 KB Created: 2021-02-26 00:51:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 9eb3f010ae8c31c0cf363441bd16269f SHA-1: f1f88cc3d8808ad4d4ccaea9a15d04f530b08dbd SHA-256: 7bc6f193bac57bec9c9b2b7d1cae516d051deb5de29c2f81fc0dad767fc1caed
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'baarspo.ru', which is likely part of a phishing lure related to financial terms. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to a malicious site.

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://baarspo.ru/wix?keyword=what+does+ie+insured+escrow+mean PDF link annotation
    • https://cdn.sqhk.co/menigopas/gheThah/talking_tom_cat_game_online_for_pc.pdfIn PDF document text
    • https://rigopijifotifat.weebly.com/uploads/1/3/2/6/132695828/12c9f.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/hhdhhHK/suvolifuvemag.pdfIn PDF document text
    • https://cdn.sqhk.co/rekubapapup/gdLKJhj/84369002855.pdfIn PDF document text
    • https://cdn.sqhk.co/kutupejotige/rgijdic/adderall_vs_ritalin_for_studying.pdfIn PDF document text
    • https://sejumajofejopib.weebly.com/uploads/1/3/2/7/132740214/a02bdf7.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/iaF4hca/sisagonali.pdfIn PDF document text
    • https://cdn.sqhk.co/gapalagabig/bsHibuF/wood_block_sudoku_puzzle.pdfIn PDF document text
    • https://sojanonef.weebly.com/uploads/1/3/0/9/130969598/dotezit.pdfIn PDF document text
    • https://zuxibonidape.weebly.com/uploads/1/3/4/8/134889984/sosowovir.pdfIn PDF document text
    • https://bumobuzeki.weebly.com/uploads/1/3/4/4/134477779/midifa.pdfIn PDF document text
    • https://cdn.sqhk.co/sanojuxako/eiab3gc/ravapinapenaviludola.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/gixawetopoli/rigosiluxogesemadabew.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_off0000db84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB84 5252 bytes
SHA-256: 900a3fd6fc4c2b5de8856fd845de0e5e93d84b90cd8c4e0c78c07aba1e8b305e
font_01_sfnt_off0000ed4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED4C 10228 bytes
SHA-256: 0fdb29ee57c5148a17333c836a21bf682bd0e10464ff13fd4b05e9db556dc2ad