Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1d263c94deeb29…

MALICIOUS

PDF

33.7 KB Created: 2020-08-20 04:24:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f6827fd7b4080cf27c21bb7f76ad5c7 SHA-1: 062d366ad1256fab2b2a837ba5848f17bcb3f064 SHA-256: ce1d263c94deeb290df1927db83039592c4e7d3f164f1bdcf6829816a05d0a23
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Baahubali 2 sub indo' and includes the malicious URL, suggesting a lure to trick users into clicking through to malicious infrastructure. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm designed to distribute the malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.com/pify?keyword=baahubali+2+sub+indo
    • http://files.jillianabbott.com/uploads/1/3/1/8/131856723/murulabagejet.pdf
    • http://lulurum.itsbohobaby.com/uploads/1/3/1/3/131379858/weseje_godiraxo_xetetubev_nadovozosib.pdf
    • http://files.stpeterswhitstable.org.uk/uploads/1/3/0/8/130874668/mobulotulugi-worirovewiko-gijazez-lokufitore.pdf
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/bahubali_dj_songs_telugu_videos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4431/5029/files/99928614256.pdf
    • https://cdn.shopify.com/s/files/1/0429/6487/7471/files/74088785862.pdf
    • https://cdn.shopify.com/s/files/1/0434/0311/6709/files/dipiditizepigotes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/rovelid.pdf
    • https://cdn.shopify.com/s/files/1/0435/6849/6798/files/probability_worksheet_gcse.pdf
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/ielts_vocabulary_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/biostar_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0451/0757/6995/files/dfinition_de_l_algorithme_informatique.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045b4.bin
26f756df466f87c4ba683e2cd114f2be9b205e2a2add2eb9e5ff637f9de3c283		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45B4 5136 bytes
font_01_sfnt_off00005717.bin
0f29ad138a34c2666964379837cbff323a64b53a1641155dbae9c2ad8ad82292		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5717 10348 bytes

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