Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2c115e47ba9aad…

MALICIOUS

PDF

49.0 KB Created: 2020-07-28 08:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 782625e93b31331b83733ac005de16bf SHA-1: 20ca6e6fea72a43d4feb74dfb636f967cdd54670 SHA-256: ca2c115e47ba9aad75106184a19eccc2e6fbe0d0a6239f27d103aa712039875a
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure related to 'synonyms meaning in marathi pdf'. The primary IOC is the malicious redirector URL, which is likely used to funnel victims to further malicious content.

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.cc/pify?keyword=synonyms+meaning+in+marathi+pdf
    • http://files.lanzarote-immobilien.info/uploads/1/3/1/4/131409309/84674e924.pdf
    • http://files.chalkbychels.com/uploads/1/3/1/4/131483685/jetogasov.pdf
    • http://files.debbiejackson.org/uploads/1/3/1/4/131408465/litozilot_selasoki.pdf
    • http://files.hollenbecksclass.com/uploads/1/3/1/0/131069812/7268277.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdf
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/50515556974.pdf
    • https://cdn.shopify.com/s/files/1/0438/0911/2226/files/25712701869.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vivewegone.pdf
    • https://cdn.shopify.com/s/files/1/0431/8098/2436/files/nusav.pdf
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/wediwevovakitej.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/92692157652.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/mitemanat.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2406/files/36284304719.pdf
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/retojanadi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/wetupodazaridik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005edc.bin
f2be020fc77f648f55944e5735d7447a91a0114b10ac03d5e4fff7fe9e71e436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDC 5416 bytes
font_01_sfnt_off00007111.bin
cbb2c779c17e57eeb65bf3d2aa3d13153e108b8c15d9d5214637905a955ecf4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7111 11368 bytes
font_02_sfnt_off000095d5.bin
623b370a60dd6b46fd6235dea25b3e5008f66b5b07acf21d641c77709f1ee572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D5 9216 bytes

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