Malicious PDF — malware analysis report

Static analysis result for SHA-256 e288b9930be33c7f…

MALICIOUS

PDF

59.1 KB Created: 2020-08-04 00:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d29a22fe43602cbf365d9757b6dafff SHA-1: c476dd8495e7a5563179235dffce704ba7b92fd3 SHA-256: e288b9930be33c7feb027e3c5fdfb5b679e626346a06482f60ac111fd5ef0ded
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL 'https://ttraff.ru/pify?keyword=banking+management+system+project+in+c+pdf' is the primary indicator of this malicious redirection. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger scheme to generate traffic through numerous external links, with 'https://cdn.shopify.com/s/files/1/0430/2520/3354/files/repopumusamamipaze.pdf' being one example. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure.

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.ru/pify?keyword=banking+management+system+project+in+c+pdf
    • http://files.mcocoh.com/uploads/1/3/2/7/132741207/gojexonagavi.pdf
    • http://files.ovahimbablackgermanshepherds.com/uploads/1/3/1/6/131606390/jeruvomofu.pdf
    • http://files.emilyrender.com/uploads/1/3/0/8/130874018/3693022.pdf
    • http://files.biblesforpakistan.com/uploads/1/3/1/3/131379296/5665074.pdf
    • http://files.danielbooneswcd.com/uploads/1/3/1/4/131483019/8663296.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/repopumusamamipaze.pdf
    • https://cdn.shopify.com/s/files/1/0428/3029/9292/files/72468909516.pdf
    • https://cdn.shopify.com/s/files/1/0449/2450/2171/files/minecraft_forge_11._2.pdf
    • https://cdn.shopify.com/s/files/1/0436/0486/9277/files/88203214275.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/xatoxatidikazibagif.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3781/files/nikadikijunufupodewe.pdf
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/vozalipun.pdf
    • https://cdn.shopify.com/s/files/1/0433/2693/1099/files/xunasasufinunupik.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/51017734045.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdf
    • https://cdn.shopify.com/s/files/1/0435/4569/0261/files/nubezibavosatugaxar.pdf
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/48104240526.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/bosizikizitinigapan.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_off00009b1b.bin
44eccc755e7e912e0470b555c7c15e1e5e09ddd0338d327b104339e6dcb487ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1B 5524 bytes
font_01_sfnt_off0000add6.bin
69ead2be867f7392af68f1bb9614bcfb1fff2cdc6572e78c9a087eb4b9f89e9e
pdf-font-stream PDF embedded font (sfnt) at offset 0xADD6 10156 bytes
font_02_sfnt_off0000d096.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 4324 bytes