Malicious PDF — malware analysis report

Static analysis result for SHA-256 75bcb033ad30f454…

MALICIOUS

PDF

75.5 KB Created: 2021-03-22 23:22:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5959dbb41952d2bd3a65dc1b56f0ed74 SHA-1: 20f1be9fa4907ea7c773834f56972898c147130b SHA-256: 75bcb033ad30f454303170e1f69165e4fed890dc30284cb6cb9b59af75f991a0
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 phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to a 'sustainability report'. No scripts were extracted, but the presence of embedded URIs and the overall detection profile strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/123?utm_term=sustainability+report+asian+agri
    • https://cdn-cms.f-static.net/uploads/4485163/normal_601bc13d8022c.pdf
    • https://cdn-cms.f-static.net/uploads/4393763/normal_6031b05233fa3.pdf
    • https://cdn-cms.f-static.net/uploads/4456372/normal_6026db52027af.pdf
    • http://startask.ru/gurilofifedupqrd3a.pdf
    • https://cdn-cms.f-static.net/uploads/4476126/normal_60462878b37cf.pdf
    • https://cdn-cms.f-static.net/uploads/4420756/normal_6018b1fe64395.pdf
    • https://static.s123-cdn-static.com/uploads/4459188/normal_5fed482c3fe89.pdf
    • https://cdn-cms.f-static.net/uploads/4420911/normal_601c97011ef70.pdf
    • https://cdn-cms.f-static.net/uploads/4486971/normal_60349006cad17.pdf
    • https://cdn-cms.f-static.net/uploads/4407301/normal_604dd196e85c6.pdf
    • http://instapodarok365.site/vetemodonudoxejexowupizvdcf.pdf
    • http://ersoil.fun/46re_performance_rebuild_kity47cj.pdf
    • https://cdn-cms.f-static.net/uploads/4449775/normal_603d6d697b3db.pdf
    • http://tricitysikhs.com/43619884357cbwjl.pdf
    • http://mawabadake.22web.org/darwin_theory_of_evolution_book.pdf
    • https://cdn-cms.f-static.net/uploads/4426828/normal_604bbc39c4258.pdf
    • https://static.s123-cdn-static.com/uploads/4393488/normal_6005fd93a9205.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/waxegatulo/zuwixamitif.pdf
    • http://bogutofiwib.rf.gd/babasi.pdf
    • https://s3.amazonaws.com/gizonukorad/tumesuxunobebara.pdf
    • https://s3.amazonaws.com/kimone/definition_of_quality_management.pdf
    • http://jexusapije.epizy.com/wetepureriretemexugepinob.pdf
    • http://sovizaz.epizy.com/a_plague_tale_innocence_collectibles_guide.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_off0000e728.bin
6b357081dd5594f7d6994f798479cf26fd62977246e616607a4bf5ba154cf6d2
pdf-font-stream PDF embedded font (sfnt) at offset 0xE728 5332 bytes
font_01_sfnt_off0000f95c.bin
523348a0326dd3edcac3045d4ef77bc50d58e69f1a99816b66a97281acbefe1b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF95C 11828 bytes