Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebaf6e7b414c5f53…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 17:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6840932a2db32354943ef1e9a3383c5f SHA-1: 7457de76956c4549abf64c8691438bf57f5a65d4 SHA-256: ebaf6e7b414c5f53e7660563a486c6e2f56bef720c283202e7ef0492b28870d5
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains but also including a critical link to `ttraff.com`, identified as a malicious redirector. The document body, though heavily obfuscated, contains the same URL found in the critical heuristic firing. This suggests the primary purpose is to redirect the user to malicious infrastructure, likely for a phishing or malware delivery scheme. No scripts were extracted, limiting the analysis of further stages.

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=colosseum+of+fools+guide
    • http://nuwokuso.goorooglass.com/uploads/1/3/1/6/131606162/7298778.pdf
    • http://files.krakenemporium.com/uploads/1/3/1/4/131406849/jetamigexub.pdf
    • http://files.americanmelodrama.com/uploads/1/3/2/7/132712080/9159600.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/vegar.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/fuxisavajevemon.pdf
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/saroresumadokaziludop.pdf
    • https://cdn.shopify.com/s/files/1/0430/6049/4490/files/tofezizalabo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9109/0844/files/sonoze.pdf
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/normalize_numpy_array.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/19262189409.pdf
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/93735637395.pdf
    • https://cdn.shopify.com/s/files/1/0459/0210/2682/files/kezije.pdf
    • https://cdn.shopify.com/s/files/1/0462/3810/5749/files/10225523910.pdf
    • https://cdn.shopify.com/s/files/1/0430/9473/7045/files/3._nitro_to_word_online.pdf
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/55798162665.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_off00005eef.bin
315b71cfe958d2f8f74142a0dd965c666e6a9f5c6f5b4af818d73e484f801add
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEF 4824 bytes
font_01_sfnt_off00006f4f.bin
5dec6ad6c8dd6794baf6a236f01bc827887dc46e25a2dea080d2edd03a8562d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4F 9980 bytes