Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4334c3a2ddd3af3…

MALICIOUS

PDF

62.7 KB Created: 2020-08-17 07:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bfbb657ad95454c02adbd9d7f535bbc SHA-1: 150ef8e54518aa42ae507068a611d66e9298879c SHA-256: c4334c3a2ddd3af36763bdd5ed0b838d0dcc8fd8aa64e792893b71076705dfb7
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bollywood+movies++hd+list'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on cdn.shopify.com. The document body, though heavily garbled, contains the same redirector URL, reinforcing its malicious intent. The primary goal appears to be redirecting users to 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=bollywood+movies++hd+list
    • http://files.cavgolf.com/uploads/1/3/1/4/131437064/e3ecb9c207552d7.pdf
    • http://files.nolababyco.com/uploads/1/3/0/8/130873894/c931d1f226ed37b.pdf
    • http://lepinob.thejewelrystatement.com/uploads/1/3/2/6/132681382/kosojamowazinen.pdf
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/loriruwajokotukesavebira.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/45231073252.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0093/files/18812076677.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/2002_mercedes_c230_kompressor.pdf
    • https://cdn.shopify.com/s/files/1/0445/3777/4239/files/voluwubelumol.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/51776148727.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/17047850137.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/fusopavutiwomet.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6063/files/93331532685.pdf
    • https://cdn.shopify.com/s/files/1/0434/0154/3830/files/shafarevich_basic_algebraic_geometry_1.pdf
    • https://cdn.shopify.com/s/files/1/0435/2838/8772/files/zoleka.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/jalegumixunozamosepegozeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/vefonuturepuzimokas.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
stream_006_off0000d1c3.bin
0c93bf6c4f4209572e5fda6b69c2fbd47416a2b3ef99e05e9de61e648a24bae9
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD1C3 18156 bytes
font_00_sfnt_off000093fb.bin
0bf287d2a1e767426c7d374f17914e59f991c9dd7c084bbd5781e4cd06945e17
pdf-font-stream PDF embedded font (sfnt) at offset 0x93FB 5064 bytes
font_01_sfnt_off0000a534.bin
96b089aec75c1487288d8a945f16e71117b555252c92686ac8048dfb4b2d3c55
pdf-font-stream PDF embedded font (sfnt) at offset 0xA534 14188 bytes