Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcafcda2ae04a85…

MALICIOUS

PDF

76.2 KB Created: 2020-08-20 07:52:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f542efd221565e11bb0919c7f9a8c91 SHA-1: b8bfc0d1c065ca100f57baf86aa434bf3529a3d7 SHA-256: 2fcafcda2ae04a85235fd255c188ea03f51cd1d7aa399a58ec707ad49f7a512f
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, specifically targeting payment redirection lures. The document body, though heavily obfuscated, contains text related to an 'online account opening application form' and includes the URL 'https://ttraff.com/pify?keyword=bob+online+account+opening+application+form', which is flagged as a malicious redirector. The presence of numerous embedded links, many pointing to Shopify domains, suggests an attempt to obscure the final malicious destination.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bob+online+account+opening+application+form
    • http://tonetu.mybrightwords.com/uploads/1/3/1/8/131856149/xemugol.pdf
    • http://files.cosmeticsupport.com/uploads/1/3/0/7/130738524/9214000.pdf
    • https://cdn.shopify.com/s/files/1/0440/1076/6486/files/jejega.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/56998538304.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/celulas_caliciformes_funcion.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/rejofanulapixokek.pdf
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/99086263935.pdf
    • https://cdn.shopify.com/s/files/1/0435/6227/0879/files/dazopuvalakuzomipafewawib.pdf
    • https://cdn.shopify.com/s/files/1/0436/9586/6010/files/57877259493.pdf
    • https://cdn.shopify.com/s/files/1/0440/1889/2965/files/pifovaxezudefewiran.pdf
    • https://cdn.shopify.com/s/files/1/0437/3839/8869/files/java_tic_tac_toe_code.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5993/files/tipos_de_antioxidantes_en_alimentos.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_off0000dd4d.bin
b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4D 2828 bytes
font_01_sfnt_off0000e748.bin
97967df2173758885089901ebfd4a8c70833914bacf2c686f995cb46b1de1eed
pdf-font-stream PDF embedded font (sfnt) at offset 0xE748 5344 bytes
font_02_sfnt_off0000f965.bin
16fb2f216cb8fc17a26191c7820278b05f5829000fb2ec1ba376d5260ca802d3
pdf-font-stream PDF embedded font (sfnt) at offset 0xF965 13076 bytes