Malicious PDF — malware analysis report

Static analysis result for SHA-256 3140e745f8ec14c8…

MALICIOUS

PDF

49.3 KB Created: 2020-08-05 22:49:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79ba677785a2797da4ca61506a0a5277 SHA-1: 3aa53c4574c9a5c0119a49c707f3cc8fb34685c3 SHA-256: 3140e745f8ec14c85224925e532a15f9f40b5b11f70b681e4c8cdd0594131a6f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=protocolo+eras+2020+pdf'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, including one to 'https://cdn.shopify.com/s/files/1/0429/6055/2085/files/dolerumubenomejimenusokap.pdf'. The document body, though heavily obfuscated, contains references to these URLs, suggesting the primary intent is to lure users to malicious external content.

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=protocolo+eras+2020+pdf
    • http://files.brightideasantiques.com/uploads/1/3/1/8/131871864/papagiwirujaze.pdf
    • http://files.shirelandscaping.com.au/uploads/1/3/0/8/130814052/duwoz.pdf
    • http://files.jbclavaud.com/uploads/1/3/1/3/131378993/xerateroj.pdf
    • http://files.upwardfacinglife.com/uploads/1/3/1/4/131436971/velolerulamur_baxafijirun.pdf
    • http://files.sycamorebandandorchestra.com/uploads/1/3/0/8/130874065/b1f74.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/dolerumubenomejimenusokap.pdf
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/gegowamoxip.pdf
    • https://cdn.shopify.com/s/files/1/0431/9854/6084/files/30101803613.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/pujowivofiwej.pdf
    • https://cdn.shopify.com/s/files/1/0435/5588/1121/files/87956618188.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/49400902026.pdf
    • https://cdn.shopify.com/s/files/1/0428/8721/7311/files/wojofuda.pdf
    • https://cdn.shopify.com/s/files/1/0437/7857/2450/files/wikomaxupisazunerasapudet.pdf
    • https://cdn.shopify.com/s/files/1/0430/8054/8505/files/xefosuserezime.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/49379177736.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/36154060677.pdf
    • https://cdn.shopify.com/s/files/1/0434/7926/9541/files/riwezago.pdf
    • https://cdn.shopify.com/s/files/1/0437/3846/4417/files/20816875854.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/84640083144.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_off00006fb1.bin
a684e19464ada745cd065219fef0fe3d4bf12cdc260e632b8e33b8e8d589201d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB1 5060 bytes
font_01_sfnt_off000080ee.bin
fc5300b219a4e83d4da4e47d1b8fd96886f45e94d23c0b764efe2280a7c5fddb
pdf-font-stream PDF embedded font (sfnt) at offset 0x80EE 12164 bytes
font_02_sfnt_off0000a888.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xA888 4324 bytes