Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f5e78095455c5ea…

MALICIOUS

PDF

72.1 KB Created: 2020-11-10 19:10:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 887c9b3ceca317cff8863ed55c14f9fd SHA-1: 176f4e714b924a736101757fe09efdd263b1ed19 SHA-256: 0f5e78095455c5ea7efcca26ac85d03c020c3c01b5d001c777f2707f50a57227
104 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 embedded URI points to a suspicious domain, likely serving a malicious payload. The presence of a 'download button' heuristic further supports a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffnew.ru/aws?keyword=youth+ministry+budget+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365612/normal_5f88546687d7c.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/firigugixujotov/dawakeselowezop.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/trinidad_and_tobago_budget_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/84099927379.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/natorodipakuri.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/kugexere.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/a_raisin_in_the_sun_act_1_scene_1_setting.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/garmin_legend_cx_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/a_w_tozer_free.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/48674714338.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/mataredunadokilubo.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/todukig.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/10071479860.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/zewekedexajava.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD12F 5356 bytes
SHA-256: 407e2dde7e85135d06f7283af45c00b436b26bb3ca229125587d13cec3000eba
font_01_sfnt_off0000e34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34E 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000eeb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB1 10836 bytes
SHA-256: d77ba267f5840208903655ee073af51d38c68420fab682c06a4851d212ef1e95

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