Malicious PDF — malware analysis report

Static analysis result for SHA-256 59fae8d43697e1e8…

MALICIOUS

PDF

48.2 KB Created: 2020-08-09 07:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6147bc128a3605bc7fa13fa9f2413c19 SHA-1: d7f93cc90afb83de6926b7bf89f5ce9cdd523aed SHA-256: 59fae8d43697e1e8d9966be99111b057b1a41e06572035318229d1dfc3d3c250
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=schindler+s+list+book+online+pdf'. Additionally, it exhibits a PDF link farm behavior with numerous embedded links, many of which point to benign Shopify URLs but are likely used to mask the malicious intent. The document body contains garbled text and the authoring application is wkhtmltopdf, suggesting it was programmatically generated for malicious purposes. The primary goal appears to be redirecting users to malicious infrastructure.

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.ru/pify?keyword=schindler+s+list+book+online+pdf
    • http://files.troyathensbands.com/uploads/1/3/0/7/130738701/zomizitipevu.pdf
    • http://files.teacheranthoney.com/uploads/1/3/1/4/131437605/nabilebo.pdf
    • http://files.bournemouthjrc.co.uk/uploads/1/3/2/7/132710690/9372aa38a85.pdf
    • http://files.halovhe.com/uploads/1/3/1/4/131453522/sifivoniwisako.pdf
    • http://files.phillypuff.org/uploads/1/3/1/3/131384208/f9b23cb3.pdf
    • https://cdn.shopify.com/s/files/1/0437/8080/0674/files/pdf_agama_kelas_12.pdf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/gente_toxica_stamateas.pdf
    • https://cdn.shopify.com/s/files/1/0438/3762/0381/files/alagappan_manual_of_practical_medicine_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/midufodasolofuderugonu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4876/2529/files/sinapaforalub.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/77551982921.pdf
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/31402498861.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5888/files/jajupa.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/37918113832.pdf
    • https://cdn.shopify.com/s/files/1/0430/9693/2501/files/bukavivaki.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0314/files/adding_and_subtracting_fractions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/88030234838.pdf
    • https://cdn.shopify.com/s/files/1/0432/6975/0944/files/fixed_asset_accounting_in_sap.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_off00007cc1.bin
adbaf1271eed97f200647fe99cfe5fbbb2555debf8250f93311d56d68bdedc0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC1 5340 bytes
font_01_sfnt_off00008ee0.bin
aadfb1dbfead0c8b47956355d57ea335dd2d5a7aaed86e290061102f12f01762
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE0 10408 bytes