Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6d8a8fe7cdf7e41…

MALICIOUS

PDF

55.0 KB Created: 2020-08-12 14:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ec1a9df3a9643636bf47411d05cb7b1 SHA-1: 3f12df8d80d11e4ab15cd47a7db91f5472f62db1 SHA-256: d6d8a8fe7cdf7e41935f7fc1aaac33afaeeaa0b5b5e91013df797708bca7cb9a
120 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a popular book, suggesting a social engineering tactic. The presence of a malicious redirector indicates an attempt to lead the user to a harmful site, likely for malware distribution or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=brent+weeks+the+burning+white+pdf
    • http://xadurijek.holyredeemerfla.org/uploads/1/3/0/9/130969754/nabuzakojusofa.pdf
    • http://files.millardwesthoops.com/uploads/1/3/1/3/131383743/8759303.pdf
    • http://files.chriscruzboone.com/uploads/1/3/0/8/130874304/2732add9e3.pdf
    • http://ledexuj.ubtsshreveport.org/uploads/1/3/2/8/132814930/4219153.pdf
    • http://files.mplhk.org/uploads/1/3/1/4/131453733/renafuzikokokamirale.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/pmay_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/1064/4377/files/28361218334.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/23811622517.pdf
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/saw_guide_rail.pdf
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/python_aes_encryption.pdf
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/21552142359.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/83574382701.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/99495884424.pdf
    • https://cdn.shopify.com/s/files/1/0431/4962/3462/files/campbell_ap_biology_9th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/15966166308.pdf
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/97522422426.pdf
    • https://cdn.shopify.com/s/files/1/0438/3762/0386/files/83565527268.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_off000098b5.bin
27fa7c81d7a97ff3047cea728244d2c87835ab7f04fdb046c077c962e0a5b39e
pdf-font-stream PDF embedded font (sfnt) at offset 0x98B5 5408 bytes
font_01_sfnt_off0000ab28.bin
aeeec6c244b56b5598aff10b1c752b521d80713d45d0d6a48777e591482316d5
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB28 10468 bytes