Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9a34165b816f292…

MALICIOUS

PDF

74.3 KB Created: 2021-03-28 00:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: e3662d9c0fe50426ab43f8e9d0d5021f SHA-1: ee79f7ba958824f668afbf42a9266ea447aa2553 SHA-256: b9a34165b816f292b08dd02f3ec3bdc968a0f5f08468130b5f811145dd3953c0
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, one of which is flagged as a high-risk phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of external URIs suggests the document is designed to redirect the user to a potentially harmful website, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://soxebez.ru/award?keyword=arabic+sentences+with+english+translation+pdf PDF link annotation
    • http://xepidenad.scienceontheweb.net/94970044827.pdfIn PDF document text
    • http://lafutib.sportsontheweb.net/xozesad.pdfIn PDF document text
    • https://zulafadosulivi.weebly.com/uploads/1/3/4/3/134305332/3928699.pdfIn PDF document text
    • https://nimadelafux.weebly.com/uploads/1/3/2/6/132695392/6387883.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/37014517854.pdfIn PDF document text
    • https://natuxebifenukud.weebly.com/uploads/1/3/1/3/131378868/likonotararigifok.pdfIn PDF document text
    • http://xaduwufuwa.22web.org/sivavusazud.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/wulumemeregadof.pdfIn PDF document text
    • https://lumigoxodavi.weebly.com/uploads/1/3/1/6/131606620/1406460.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/kufazete/zegavesabifekojur.pdfIn PDF document text
    • http://jojexapopexevof.epizy.com/soundcloud_song_link.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/wuzomekogifaxamakobika.pdfIn PDF document text
    • http://xaxidos.epizy.com/apa_in_text_citation_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/1_to_100_chart_in_words.pdfIn PDF document text
    • http://fotizojorirepel.onlinewebshop.net/practice_polynomial_functions.pdfIn PDF document text
    • http://jokolonu.rf.gd/18532938390.pdfIn PDF document text
    • http://jejigofufoseso.epizy.com/jawivig.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/dekugarinubewu.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_off0000e0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D2 5640 bytes
SHA-256: 61f2370aad9432ae020ec333a3a49bf3f163309544b4e4176c076cf510c41fc7
font_01_sfnt_off0000f408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF408 12380 bytes
SHA-256: e7d134ac86a8c35c1cf74490a25b4637f92009744f2898f7c3b8f49b9b6163ba

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