Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76c55c9ccae8937…

MALICIOUS

PDF

48.2 KB Created: 2020-07-30 12:28:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2b3f8ce75e9cb7debde38daa3c3aad4 SHA-1: a0059bbfbe6f80ec5795041cc9176aea9c0a2936 SHA-256: b76c55c9ccae8937c55d152d50c2848f46f06893ce2825617def2e2f124e5cb3
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'difference and similarities between management and administration pdf' and includes a critical heuristic firing for a malicious redirector link. This link points to 'ttraff.com', which is known for malicious redirection. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The presence of these elements suggests the document's primary purpose is to trick the user into clicking the malicious link, likely leading to a phishing or malware download site.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.com/pify?keyword=difference+and+similarities+between+management+and+administration+pdf
    • http://files.steveguycounselling.co.uk/uploads/1/3/0/7/130739916/puzexeje.pdf
    • http://files.bellacalore.com/uploads/1/3/0/8/130814279/mumubimogamu-fupedevumebat-ropetiwajo.pdf
    • http://files.pannamariatexas.net/uploads/1/3/2/6/132683140/2a9ae1b.pdf
    • https://cdn.shopify.com/s/files/1/0435/8399/6063/files/3041712129.pdf
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/33955632757.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdf
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/xutonimetezetu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/21357594210.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/78182498851.pdf
    • https://cdn.shopify.com/s/files/1/0431/3969/4741/files/87299232079.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/vusugiwozujinoka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pejodogidevetakuranuwa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3893/1109/files/renemoreboga.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/
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/xut

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d77.bin
b23ddec236098276997ae07c41cf8e19eba03674cbe42b8dbb4730c1d126a0a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D77 5496 bytes
font_01_sfnt_off0000901c.bin
11d1bd39b565049f84ecb891209bc447fd6769e8a9e915a9b4d65d653523be22
pdf-font-stream PDF embedded font (sfnt) at offset 0x901C 10336 bytes