Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f9d59838fe3846…

MALICIOUS

PDF

41.4 KB Created: 2020-08-28 01:42:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58b6f04ed03d76382c1cdd9c2304e086 SHA-1: 8a0e9a828323ac1b87a547f1c2481bbabe2f4263 SHA-256: 84f9d59838fe384604b961aa6d3c72b6a6b172f7bde534e7e5b5a6a2801ab72d
160 Risk Score

Malware Insights

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

The PDF document contains a lure claiming to help hack Facebook accounts, directing the user to a malicious URL. It also includes a large number of links to other PDFs hosted on Shopify, likely part of a link farm for SEO manipulation. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also instruct users to copy/paste content into a shell, indicating a multi-stage attack. The primary malicious URL identified is https://ttraff.ru/pify?keyword=se+pode+hackear+facebook+com+ip.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=se+pode+hackear+facebook+com+ip
    • http://fuwejinax.benedictarenee.com/uploads/1/3/0/8/130814328/1204247.pdf
    • http://files.shaypery.com/uploads/1/3/0/8/130813906/5779a04a7832.pdf
    • https://cdn.shopify.com/s/files/1/0433/8774/8508/files/96479445260.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/67788403174.pdf
    • https://cdn.shopify.com/s/files/1/0434/2572/6625/files/368013783.pdf
    • https://cdn.shopify.com/s/files/1/0430/5770/9210/files/best_ngo_annual_reports.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/77056147535.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8277/files/sapat.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/onkyo_sks_ht500.pdf
    • https://cdn.shopify.com/s/files/1/0433/6143/5813/files/gutoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/2117/1879/files/zirukolivetologelurewodub.pdf
    • https://cdn.shopify.com/s/files/1/0429/6835/0886/files/weather_report_azusa_ca.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_off000063a9.bin
c69f91598505d5b32063575aa70a8943070108c94dd6ddd4690f00f6205ec7c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A9 5492 bytes
font_01_sfnt_off00007632.bin
1282e3314c74084d71b42cf70bbeca9b8c8bde3e801b07d29cab194adad6fd57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7632 10192 bytes

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