Malicious PDF — malware analysis report

Static analysis result for SHA-256 5051eca699a253dc…

MALICIOUS

PDF

93.8 KB Created: 2021-02-18 01:14:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 0fd9aaa287ffb305c1016d416bd3f55f SHA-1: 3abca56cc92462bf6c35b5e7fbdded674ea8a124 SHA-256: 5051eca699a253dc63c4ad3e4eaf4ba81c53d4a3741ff814bf19ce6a8b01432e
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains multiple embedded URLs, with the primary one being https://seumenha.ru/123?utm_term=sketchup+apple+m1, which likely leads to a phishing or malware distribution site. The document body appears to be obfuscated or corrupted, but the presence of external URIs and the overall detection strongly suggest a malicious PDF designed to redirect users.

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://seumenha.ru/123?utm_term=sketchup+apple+m1 PDF link annotation
    • http://basiditdcf.space/residential_lease_agreement_templateu1wgo.pdfIn PDF document text
    • http://piredvizhnik.com/71803378348hji0t.pdfIn PDF document text
    • http://cg-designer.xyz/siritujothzpq.pdfIn PDF document text
    • http://golomashvanna.xyz/kuzoxubetixcrfb.pdfIn PDF document text
    • http://zuvels.xyz/types_of_green_energyuldd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451760/normal_5fc85201149a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497095/normal_5fc86065e29cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490377/normal_5fff4fd69497c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495551/normal_60142cd077365.pdfIn PDF document text
    • http://jobatuzuru.22web.org/maytag_maxima_dryer_not_starting.pdfIn PDF document text
    • http://itgermany.net/547955796723yptq.pdfIn PDF document text
    • http://modutomipofa.iblogger.org/mijagowulododo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461495/normal_600a052646ba1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447108/normal_6028f3d4590d4.pdfIn PDF document text
    • http://websporizle3.com/mudatifomobabivazfshif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470409/normal_5ffacc771fd2b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://jupuzagap.rf.gd/25676404267.pdfIn PDF document text
    • http://bozuguluro.rf.gd/ikea_picador_manual.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11257 5120 bytes
SHA-256: 0e2816794d70d955b519c2524840d4b717ab8cb63b0062cca7bfaf59b4a05d19
font_01_sfnt_off000123a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123A2 9516 bytes
SHA-256: 5739e8c03ae98f77a471e62901d310eefd534965b53546035e06cb9026a38a8d
font_02_sfnt_off00013e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E46 14880 bytes
SHA-256: 38c3c992fcbb14d65266c6a1b37fa54e554346cb895e326a79c8230acb6a01b2

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