Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0058ea9dad65f1a…

MALICIOUS

PDF

63.7 KB Created: 2020-08-04 16:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ce892c08412477a35761561df4fba39 SHA-1: dd26cf91bb0c970053dd96bd074238891be540f6 SHA-256: c0058ea9dad65f1a52f298d766ba7cd9ccccb0bf04d444b6adae7443de5c344d
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=elaboracion+de+bioplasticos+a+partir+de+almidon+de+papa+pdf, which is flagged as malicious. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, including one pointing to a Shopify domain. No scripts were extracted from this sample.

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.com/pify?keyword=elaboracion+de+bioplasticos+a+partir+de+almidon+de+papa+pdf
    • http://files.kidshoeology.com/uploads/1/3/0/8/130874276/4907730.pdf
    • http://files.jroennau.com/uploads/1/3/1/4/131453022/9422308.pdf
    • http://files.revdenisetracy.com/uploads/1/3/0/7/130739227/ledisifuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/1832/8991/files/minecraft_pe_0._12._0_server.pdf
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/supugutafozajuxuduzaxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/bofuvisizubolatuwobini.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/86314442103.pdf
    • https://cdn.shopify.com/s/files/1/0440/3704/6437/files/44285591229.pdf
    • https://cdn.shopify.com/s/files/1/0433/8306/2695/files/bienvenue_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/2836/4968/files/18520829775.pdf
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/30761419317.pdf
    • https://cdn.shopify.com/s/files/1/0432/4127/5547/files/22170196375.pdf
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/85817713804.pdf
    • https://cdn.shopify.com/s/files/1/0431/5670/1346/files/zanupupos.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_off0000a0a6.bin
ddb33676b1157680d9b48e31ac6ce38114ec80f5dbadd5ae554bfd37acdfde8e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A6 5400 bytes
font_01_sfnt_off0000b2e4.bin
7fe4d40d1848f0d347c94b2c34a5b63dd7b55c6943c57fdeb80100956fb0098c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E4 11428 bytes
font_02_sfnt_off0000d898.bin
acde447645c8fd5db629c128afed4d8e79b3068d4ffcba9144fbd7b49c126a9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xD898 17004 bytes