Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02a5ba1a356899d…

MALICIOUS

PDF

62.2 KB Created: 2020-08-05 05:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f29e728444cedbb1a1b62aa6341c5c2 SHA-1: 2ee6d858463b881fb2ea9ea5f5d2b0e4827e33ac SHA-256: c02a5ba1a356899d1953bc798346862d1c01195cbd8d4b7f0d0dc3fe50fcfb93
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=aditya+hrudayam+pdf+tamil'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The file was generated using wkhtmltopdf, suggesting it might be part of a larger SEO-based spam campaign.

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=aditya+hrudayam+pdf+tamil
    • http://files.stpeterstpeter.com/uploads/1/3/1/8/131871698/feluraxukefimis_wixipi_taditadot_dozez.pdf
    • http://files.kafyeblaan.com/uploads/1/3/1/8/131856381/becb5.pdf
    • http://files.completebydesigncbd.net/uploads/1/3/1/3/131384293/pogufolu-rakifebe-velut-pibutoduwebeper.pdf
    • http://files.charleighwrenco.shop/uploads/1/3/1/3/131378838/3841231.pdf
    • http://files.fullyfusedcrafts.co.uk/uploads/1/3/0/7/130775784/mixetositad.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/78721755079.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/59447549911.pdf
    • https://cdn.shopify.com/s/files/1/0435/8098/1403/files/1165412147.pdf
    • https://cdn.shopify.com/s/files/1/0438/0088/7457/files/janazetapexafopikegobid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/vezogebaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/fujolopuzekemotokonanuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1781/files/70055180779.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3801/files/93802050937.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/pekoxomilik.pdf
    • https://cdn.shopify.com/s/files/1/0431/9671/1073/files/fijiwelemonuxudivelif.pdf
    • https://cdn.shopify.com/s/files/1/0437/3390/9665/files/47618860700.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f00.bin
db4e7585775e755217d12b849eff38d9bddbbbd0267c5660f4d384816a16ee91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F00 4740 bytes
font_01_sfnt_off00009f14.bin
315bdf5982bcb76c626f13dd94f3217d1aad3e57bf0bd178849ad7ce7fdc8a13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F14 7696 bytes
font_02_sfnt_off0000b525.bin
f7a4abe0eb10440e04ec3b2d2dd7fa12a3e66b8bc5f49b149828522c92c51389		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB525 12516 bytes
font_03_sfnt_off0000dd4e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4E 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.