Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2698864b3f41470…

MALICIOUS

PDF

48.8 KB Created: 2020-08-30 06:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91b3964ac4a8087f6a6381c67e700e9f SHA-1: cddfd1785c37f6b687109adcba50325ce11657a4 SHA-256: c2698864b3f41470e6a7c7c271b0306bdfb46d988cd43e020f99a7b10b2a3df3
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 a redirector URL. The primary heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body contains text that appears to be a lure, referencing 'Gold's gym dorsett', and includes the malicious redirector URL. The presence of numerous shopify.com URLs suggests an attempt to disguise the malicious activity as a link farm.

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/wix?keyword=gold%252527+s+gym+dorsett
    • https://cdn.shopify.com/s/files/1/0435/0623/7604/files/48828219695.pdf
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/mozelogokixobubobowod.pdf
    • https://cdn.shopify.com/s/files/1/0438/5007/2214/files/91771509263.pdf
    • https://cdn.shopify.com/s/files/1/0437/6520/3093/files/hd_avi_movies_hollywood_in_hindi_2015.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/17339418655.pdf
    • https://static.usrfiles.com/ugd/b8c837_771c7bb782ae4ffabacd897664d6389f.pdf
    • https://static.usrfiles.com/ugd/0f1814_ca6844b82fe144ed8b8b354275eef4da.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a24cee329544235af70991f2c28d87c.pdf
    • https://static.usrfiles.com/ugd/79cb75_d5d050ba2f8d41b08d5754f84300f3f6.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_82319189d12449b998fba0f75a7b9f45.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/creative_strategy_in_advertising_drewniany.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3799/files/xoragupulage.pdf
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/2002_buick_century_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9889/7574/files/dufixorizegajetedejatowog.pdf
    • https://cdn.shopify.com/s/files/1/0439/4654/1211/files/danumepukixipukukoxud.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bbc.bin
2994486b36a12d69d205f86b4a7bc21adb19b37043a78519c10578fed187c7cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBC 5104 bytes
font_01_sfnt_off00006d0a.bin
f25375f9d145506fd646ea1021c27f396c47852052a1f6b15c40731b26a60aa0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 2660 bytes
font_02_sfnt_off00007873.bin
a7a2eaf03c4a17e33dc5b059f19d9255031b9beb676db6ca606a51e030a769f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 12140 bytes
font_03_sfnt_off0000a0f2.bin
b118ad4a5f0f66e944d0a6e82a0dad6050c27e77cb1eabf64d07f40874ae21b7
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F2 16080 bytes