Malicious PDF — malware analysis report

Static analysis result for SHA-256 584d4c747c9f205c…

MALICIOUS

PDF

84.7 KB Created: 2021-03-04 02:44:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 20afc46a375544ed7ca7aa57dd1bcdca SHA-1: 7dd047de7ca662daa607871067d0815c380f589d SHA-256: 584d4c747c9f205ca2b44abf4467eeb91c4923d7319ce5832a0c334e870120e6
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 part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Livros de culinaria iniciantes' (Beginner's cookbook), aiming to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest it's a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=livros+de+culinaria+iniciantes PDF link annotation
    • http://lazategomid.scienceontheweb.net/lavazza_espresso_point_pods.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/45093355245.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450048/normal_5fddbccc5a23b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459177/normal_602c603c1c8e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372373/normal_60031c98ec2b3.pdfIn PDF document text
    • http://jedusajinud.mygamesonline.org/tugibipun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391015/normal_5fef9b713142f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446289/normal_5ffd69dc12e14.pdfIn PDF document text
    • http://tesupelaj.sportsontheweb.net/34316590334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413462/normal_6026147499d54.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416665/normal_5feb2d81cd29a.pdfIn PDF document text
    • http://zitugaxusi.mygamesonline.org/99648989600.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501980/normal_5fca6b95b4f16.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371809/normal_5fddfa993f80e.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/sasavirigonuvurid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481055/normal_603c74b85c813.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425727/normal_6005a92e6fcff.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/baxunaf/identity_and_access_management_tools_and_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/how_do_i_know_if_my_baby_is_breastfeeding_enough.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/2145331784.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/82767208925.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_off0001013b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013B 4932 bytes
SHA-256: b85c3d3471223ea18ede89b442a9f99f443ec581ca539f81ccd0011f950c9b96
font_01_sfnt_off00011210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11210 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00011a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A9E 13160 bytes
SHA-256: f80924540f50a950bec33f7964799e39fd971173fd0a1a55ee139d69735f78c4

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