Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a89b84007a69dbc…

MALICIOUS

PDF

48.1 KB Created: 2020-08-21 05:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa76528d2594638ac5d8772fcc18c48d SHA-1: 58aab6fa6fd9059de08d2fa7bb327dce266f0e20 SHA-256: 2a89b84007a69dbc525d93ee8636c40a1aaf8881efe5128bf64ffeba04f385c2
128 Risk Score

Malware Insights

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

The PDF file contains a link disguised as an exam date sheet, which redirects to a malicious URL (ttraff.cc). This is a common social engineering tactic to trick users into visiting potentially harmful sites. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. No scripts were extracted, limiting the analysis of further payload delivery.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=dsssb+exam+date+sheet+2019
    • http://dereje.jackjmatthews.co.uk/uploads/1/3/1/0/131070847/3ccd9264.pdf
    • http://files.tearoharsa.co.nz/uploads/1/3/0/8/130874403/vumofuwe_wufafozo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9870/1977/files/evangelismo_criativo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3164/files/jerusazor.pdf
    • https://cdn.shopify.com/s/files/1/0431/5676/6882/files/wivobejelonegatugapa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/98232597857.pdf
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/abbyy_transformer_3._0_full.pdf
    • https://cdn.shopify.com/s/files/1/0440/2397/2005/files/zolatolebowijugumirukag.pdf
    • https://cdn.shopify.com/s/files/1/0435/7321/5387/files/xuwidelewipagaribexapasav.pdf
    • https://cdn.shopify.com/s/files/1/0428/2050/1660/files/simple_things_miguel.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/akh_va_quot_shrine.pdf
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/espn_pga_scoreboard.pdf
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/monkey_madness_2_guide.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_off000070fc.bin
6393af4f67065254d266bc97621d67d5db04f569c1e822cc47cb84416540d756
pdf-font-stream PDF embedded font (sfnt) at offset 0x70FC 5152 bytes
font_01_sfnt_off00008284.bin
9c8504f95f687d49c9e839ed3ff00fc746f22acf71ec78f3b4674ba87e85c717
pdf-font-stream PDF embedded font (sfnt) at offset 0x8284 10180 bytes
font_02_sfnt_off0000a535.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xA535 4324 bytes