Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6756ab841b6f6f5…

MALICIOUS

PDF

47.9 KB Created: 2020-08-20 06:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4633351171007af73fdc6ea1b1762e2c SHA-1: cf710d905b5ae7fbda9e54c031b36311a3ba10ef SHA-256: e6756ab841b6f6f598cc921c827826208022ed5449b13b22d16492239f8f8cee
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious URL identified is https://ttraff.ru/pify?keyword=kendo+datasource+group+template, which is flagged as a malicious redirector. The document body appears to be malformed or heavily obfuscated, making it difficult to determine a specific lure. However, the presence of numerous external links strongly suggests a phishing or redirection attempt to a malicious site.

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=kendo+datasource+group+template
    • http://xujij.polahphotography.com/uploads/1/3/0/7/130739935/6199434.pdf
    • http://files.grandbendsoccer.ca/uploads/1/3/1/8/131871894/mirelukexuger.pdf
    • http://files.oceansideteachers.org/uploads/1/3/0/8/130813827/gutabonusuvojijawi.pdf
    • http://files.upwardfacinglife.com/uploads/1/3/1/4/131436971/velolerulamur_baxafijirun.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/loews_hotels_careers.pdf
    • https://cdn.shopify.com/s/files/1/0451/8042/0247/files/sakamarapewelofu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/libro_aprender_portugues_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/1070/9915/files/gigumikiborobipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9614/6073/files/molecular_biologist_s_guide_to_proteomics.pdf
    • https://cdn.shopify.com/s/files/1/0438/6911/0432/files/cds_2020_2nd_paper.pdf
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/jekivipumevabivomimilino.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/98823226439.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/93578482734.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/zetazorubulaxakatoxuwile.pdf
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/lodonifonibezuvure.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/94759659220.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_off00006180.bin
9a23847b9bc441a1d64161bb4c0a3395172fce34c11d2009995629ccb48167a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6180 5360 bytes
font_01_sfnt_off0000739d.bin
2b06acabc83c103f45996e017315cb76e3f1c09b7639213d31c46cd7022ad666
pdf-font-stream PDF embedded font (sfnt) at offset 0x739D 6520 bytes
font_02_sfnt_off00008591.bin
a86345c8c2b7a4d02becb1dba5d36f09e635b05bf2e324f1649a203b7e21bdef
pdf-font-stream PDF embedded font (sfnt) at offset 0x8591 13060 bytes