Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea7116e824a438c…

MALICIOUS

PDF

49.1 KB Created: 2020-08-06 08:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8254ade2a9637dab1d44ab2d21889d21 SHA-1: 1a6ff65918c340f57c72cbfd5bc8f5f12040bdea SHA-256: fea7116e824a438c59522b84e0b86cfe86a5c5db71ade8938fddd45fd5ec56ea
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body, though partially garbled, contains text related to a 'Struts tutorial' and includes a URL that appears to be a redirector. This suggests the document is designed to lure users into clicking links that lead to malicious sites, potentially for further exploitation or malware delivery.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=struts+tutorial+for+beginners+with+examples+in+eclipse+pdf
    • http://files.mnquidditch.com/uploads/1/3/0/7/130776757/7792208.pdf
    • http://mubej.blessingrvpark.com/uploads/1/3/1/4/131406149/negoza.pdf
    • http://files.ageecabinetdoorsandrefacing.com/uploads/1/3/1/0/131069893/xolunuliw_debedugo_xemesopivepife.pdf
    • http://files.sandsfoleyentertainment.com/uploads/1/3/0/7/130740068/folupunev_fafew_xuven_susuxoletemodud.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1519/files/bmw_tuning_software.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6568/files/jipiwizojofiribovoxesa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/ruronasukurobusubefa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/solving_equations_with_variables_on_both_sides_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/flight_simulator_x_controls.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/budesonida_nebulizacion.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/27299864115.pdf
    • https://cdn.shopify.com/s/files/1/0429/8617/6675/files/bebojodofutonizula.pdf
    • https://cdn.shopify.com/s/files/1/0434/2140/1237/files/37341110256.pdf
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/70905436910.pdf
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/itms_services._action_download_manifest.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_off0000796e.bin
d5f463ea91f3d7d8de2d810538853d51c44c250ed9cf507052a001c555a6f9d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x796E 5972 bytes
font_01_sfnt_off00008daa.bin
80bb42dca1042d00f2a71fbc7fbc0b2f72b2d2df62fb1b9aebac0e957a157ef3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DAA 12824 bytes