Malicious PDF — malware analysis report

Static analysis result for SHA-256 9460b1407536ad79…

MALICIOUS

PDF

372.1 KB Created: 2021-01-24 22:22:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ddf79df83e1a9756889bae2e72abfe4e SHA-1: 0d3ca55b22fe82a225e9274c98d275d47338b6cd SHA-256: 9460b1407536ad7996be4720075e175cdd584a5a7a0d2f6c5d5aeb161f204a42
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, suggesting a phishing or scam lure. While no scripts were explicitly extracted, the PDF structure and embedded URI are sufficient indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9801

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/123?utm_term=a+voice+in+the+wilderness PDF link annotation
    • https://fojefutitamok.weebly.com/uploads/1/3/3/9/133989463/jewinixepipimu-zavojakegab-desutew.pdfIn PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/102164f444a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447270/normal_5ff9e1326e872.pdfIn PDF document text
    • http://organic100.fun/temple_run_game_2_video3aoj5.pdfIn PDF document text
    • https://tirasuvemesamu.weebly.com/uploads/1/3/4/6/134672388/likenakuwi.pdfIn PDF document text
    • https://dunomomavelow.weebly.com/uploads/1/3/1/4/131407267/voraxu_mutasavemazase.pdfIn PDF document text
    • https://zabapekiji.weebly.com/uploads/1/3/4/4/134470890/nekikasamukavaruke.pdfIn PDF document text
    • https://pubedazemel.weebly.com/uploads/1/3/4/8/134870130/gofitapuvaza.pdfIn PDF document text
    • https://bexokafosirur.weebly.com/uploads/1/3/2/6/132695536/4a8bdb.pdfIn PDF document text
    • https://laregupofonel.weebly.com/uploads/1/3/4/4/134464195/9b170b4b545299.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490129/normal_5fda76fe5a759.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_5fe97296679f4.pdfIn PDF document text
    • https://fabuduviwanor.weebly.com/uploads/1/3/4/7/134739750/1a26d.pdfIn PDF document text
    • http://legiontry.online/crossroads_church_fitchburg_covid_outbreakps12r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fukokikedusej.epizy.com/52591331281.pdfIn PDF document text
    • http://nepanazunisemi.epizy.com/kakulikoduwikoxobete.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_off000579dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579DC 4960 bytes
SHA-256: 8cc4bd27b9c456f56c2865178ab190a8964630d29246a65223ff3bbbb4f74126
font_01_sfnt_off00058ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AC9 19476 bytes
SHA-256: 6a119698fa7554a928ec444462e8c38acbaf69c2e53fb7768f5125b2f74eb80e