Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ccc47fcd138b239…

MALICIOUS

PDF

48.5 KB Created: 2020-08-14 16:22:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57012b811f24d96bf68ceca70214316f SHA-1: 89c1cae6f0b0a44e472e16ad63c216d545022102 SHA-256: 1ccc47fcd138b239421d0d9afe35cbed1f9ef52304048aa61440a45c437b6af1
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, 'https://ttraff.cc/pify?keyword=keto+diet+meal+plan+free', which is flagged as malicious. The document body, though partially corrupted, contains text related to a 'keto diet meal plan free', suggesting a lure. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farms used to distribute malicious content. No scripts were extracted from this sample.

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=keto+diet+meal+plan+free
    • http://files.windowcleanersvictoria.com/uploads/1/3/2/6/132695360/xegemujoru-dunifapafido.pdf
    • http://files.buyrefugeecandles.com/uploads/1/3/1/3/131381612/2351981.pdf
    • http://files.mhssportsclub.com/uploads/1/3/2/7/132740285/39b6699.pdf
    • http://files.hppsfuturelearning.com/uploads/1/3/1/6/131636954/gibibo_romeja_binafezezija_tabeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/2866/7816/files/vanellope_von_schweetz_hentai.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/wufilitixutowirovozope.pdf
    • https://cdn.shopify.com/s/files/1/0438/2143/2992/files/sewugafudatub.pdf
    • https://cdn.shopify.com/s/files/1/0437/0091/2282/files/audacity_2._1._3_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6343/3621/files/57462936200.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/cost_accounting_short_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/dovuwa.pdf
    • https://cdn.shopify.com/s/files/1/0439/6757/8270/files/accrual_basis_of_accounting.pdf
    • https://cdn.shopify.com/s/files/1/0438/4954/7936/files/48335664953.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_off000073ac.bin
ecb8e68bc4db9b2bfda28947ce532d382118c1544b2769f394f6d2c28c91f1dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73AC 4764 bytes
font_01_sfnt_off000083c1.bin
e93bce0a634f2b9f218d179b33fe26e1742918f0decdd8e6466280cc3cfbb04d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83C1 10316 bytes
font_02_sfnt_off0000a700.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA700 4324 bytes

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