Malicious PDF — malware analysis report

Static analysis result for SHA-256 8970ad27b5ac2097…

MALICIOUS

PDF

41.5 KB Created: 2020-08-17 05:38:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f00c673021167889f98f92a1ec37ef8b SHA-1: 48b202d0ab07f41823325baefb0cf15d73717d2d SHA-256: 8970ad27b5ac2097c856e7363ffe77fa52a9d819d86fd5d3b66feaaacb67618e
162 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=cccam+2.+2.+1+openatv'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify-hosted PDFs, suggesting a tactic to manipulate search engine results or distribute content. The document also contains a lure for remote support tools, indicating a potential social engineering attempt. The presence of these elements strongly suggests a malicious intent to redirect users to harmful sites or to trick them into installing unwanted software.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=cccam+2.+2.+1+openatv
    • http://files.electronicrepairegypt.com/uploads/1/3/1/4/131408364/tipimikefakukasape.pdf
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/master_thesis_topics_in_accounting_and_finance.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/50062454254.pdf
    • https://cdn.shopify.com/s/files/1/0431/3301/0082/files/microeconomics_krugman_3rd_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/13674278096.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/27683816689.pdf
    • https://cdn.shopify.com/s/files/1/0437/0454/9531/files/raxamonesuremedozuxarejud.pdf
    • https://cdn.shopify.com/s/files/1/0444/6945/2967/files/ragnarok_restart_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/94917885834.pdf
    • https://cdn.shopify.com/s/files/1/0440/5687/1062/files/cyanide_in_cassava.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokixud.pdf
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/veneluboxesuzon.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/bengali_calendar_1424.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006532.bin
03cff0aa9030c8d4da264d5d5e7d0b0e8eb3142ad81c357fbd6656b162250948
pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 4952 bytes
font_01_sfnt_off0000760b.bin
28e48184d0ce238f6190b7b588d8917780875a1dd4793494aaeb4a443be75141
pdf-font-stream PDF embedded font (sfnt) at offset 0x760B 10364 bytes