Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc0812689042094…

MALICIOUS

PDF

69.6 KB Created: 2021-01-04 05:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: dd897d24a399af0c40ecf87d19a826ce SHA-1: 18a9280138e84dc784595e25619444389a8c8243 SHA-256: 9bc08126890420940257f7523a50a08d2e44ee0016652db82fac216cad9d8f85
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffset.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'planter instructions', aligning with common social engineering tactics.

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://traffset.ru/123?utm_term=topsy+turvy+planter+instructions PDF link annotation
    • https://cdn.sqhk.co/vugujebeku/i1Fieje/royal_fish_and_chips_cosham_phone_number.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378599/normal_5fefd498af3e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445879/normal_5fa5d34e63002.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/minabiwa/volleyball_rotation_sheet_4-_2.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/csr_apk_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/fefexojid.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/tv_channel_broadcasting_software_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b29ca60e-c72b-4096-82ab-85dd5bc9e855/binog_scan_fallen_order.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ac81f9e-52c8-4808-bcec-9b6b1e51b018/27792111985.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/pelegol.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/rujalisewoxorarin.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/8325233580.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB27 2968 bytes
SHA-256: afcae459a23cd8fad60e71fa482ed795063b178ca7a96d5a337757ed3e51a98b
font_01_sfnt_off0000d5cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CD 5040 bytes
SHA-256: 37fe1185bfc2b348d2d371c5e52b972f06a79d12434e5ba064b0d9f1ccca4fce
font_02_sfnt_off0000e70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70B 10120 bytes
SHA-256: 935e47d5db78736acaf3d785fa1e7747a26811f62af19461ed22b579c3cf2a3f