Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca0e6247073fc6b…

MALICIOUS

PDF

33.2 KB Created: 2020-08-15 08:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c1fa3f0f1fc0e52f5596faede730370 SHA-1: 4b4a51e8f5991619da61777d3bc41ad47cb55b97 SHA-256: fca0e6247073fc6b1470af05d9bd13ea3fb4001484694fa7cff8ce5b4b0a66b7
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=bheema+mp4+hd+video+songs'. The document body also contains this URL, suggesting it's intended to lure the user into clicking it. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The file is identified as malicious, and the primary attack vector appears to be social engineering via a deceptive link.

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=bheema+mp4+hd+video+songs
    • http://files.jaehyungum.com/uploads/1/3/0/7/130776346/zopafi_legurugagupur_rokamem_fipuwivejodavaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/85124542840.pdf
    • https://cdn.shopify.com/s/files/1/0435/3028/9311/files/workability_of_concrete_by_compaction_factor_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/26662499562.pdf
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/sokudevugu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/bitidurabobufugasabukireg.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/linemijugiwokix.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/22148577984.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/gijakademopori.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/banik.pdf
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/google_sheets_pivot_table_conditional_formatting.pdf
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/sajusogezi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/fomegewaramazasulefa.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_off000044cb.bin
6252e199f76d6e1ee81b74af3943ceb492dbefda9944eb113a83c93ed2a40db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44CB 5440 bytes
font_01_sfnt_off0000573f.bin
51fc4b860c0464a1e4b93d7f6be6b327b8224d1e9b23f806fc926800cfe75d75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x573F 9672 bytes

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