Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00b5028e6459ae7…

MALICIOUS

PDF

41.1 KB Created: 2020-09-04 00:36:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7dd0980e9debac0624713b76fdfc1a SHA-1: a75aa2ae042c293e0d609505068d1d3515f6c745 SHA-256: f00b5028e6459ae7a8ee257a1b0c14a99643c1eeae059e5311dd8ecdb17c76bc
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is the primary attack vector. The document body, though heavily obfuscated, contains text related to 'Ecosystems theory in social work pdf' and a URL that matches the malicious redirector. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm or SEO poisoning attempt to mask the malicious destination. The primary malicious URL is https://ttraff.me/wix?keyword=ecosystems+theory+in+social+work+pdf.

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.me/wix?keyword=ecosystems+theory+in+social+work+pdf
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/bb_spirit_tone.pdf
    • https://cdn.shopify.com/s/files/1/0432/5913/4112/files/81542923162.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/ropoporamifaj.pdf
    • https://cdn.shopify.com/s/files/1/0435/3317/2885/files/divudiwiruba.pdf
    • https://cdn.shopify.com/s/files/1/0428/2266/4348/files/chloroform_use_in_dna_extraction.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/bolisiwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5777/3718/files/mapa_so_miguel_aores.pdf
    • https://cdn.shopify.com/s/files/1/0463/9857/0651/files/65994416405.pdf
    • https://cdn.shopify.com/s/files/1/0429/6078/1475/files/nelefidovarod.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/5086197249.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/fivejile.pdf
    • https://cdn.shopify.com/s/files/1/0432/9229/5333/files/pujeviwavulogaxatosojet.pdf
    • https://cdn.shopify.com/s/files/1/0436/6431/0425/files/35729373278.pdf
    • https://cdn.shopify.com/s/files/1/0433/2647/2345/files/77075263620.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.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_off000054db.bin
84ede1a5354dfe2b9e6ba28fbe3d7d39f7cdf6b1fa9fc45a1d8e1963ea98a9b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x54DB 5396 bytes
font_01_sfnt_off0000671f.bin
06ca9d1bec3c8d51ecfd6e544e3939d9299ba4b2a88bcc8448ab147751e780b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x671F 10288 bytes
font_02_sfnt_off00008978.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8978 4324 bytes