Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e66a6e07ce2380…

MALICIOUS

PDF

39.1 KB Created: 2020-08-29 03:38:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a00ac1149a5264f9c31a4451ac3d4aa SHA-1: d2a9b7db94c0286db3f11a71fb33c7d05da67bfa SHA-256: 25e66a6e07ce2380e9be8d4627b78a15e21b3caa78bde90013488cd3f1614901
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. The presence of numerous links, including to Shopify, suggests a link farm or SEO poisoning attempt to drive traffic to malicious destinations. The primary malicious URL is https://ttraff.me/wix?keyword=machance+sgubu+remix+baixar.

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.me/wix?keyword=machance+sgubu+remix+baixar
    • https://cdn.shopify.com/s/files/1/0435/5060/5461/files/3_bedroom_bungalow_house_plans_in_kenya.pdf
    • https://cdn.shopify.com/s/files/1/0440/5395/4710/files/bumoxewunum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6961/1932/files/73294953661.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/vegokonos.pdf
    • https://cdn.shopify.com/s/files/1/0434/3329/6028/files/nursing_care_plan_impaired_gas_exchange.pdf
    • https://cdn.shopify.com/s/files/1/0432/9963/5355/files/72353723527.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/51422028165.pdf
    • https://cdn.shopify.com/s/files/1/0436/1489/6290/files/ielts_band_7_writing.pdf
    • https://cdn.shopify.com/s/files/1/0436/1873/0147/files/how_to_use_multimeter_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/mosazedesunefefe.pdf
    • https://cdn.shopify.com/s/files/1/0440/9258/8184/files/cambridge_english_advanced_result_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/4640/2208/files/sindhu_bhairavi_songs_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/33056292038.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_off00004514.bin
7fbaa36b4134e34b664ab9942015cdfa950c1f4275843ca7958f21810c45e2a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4514 5392 bytes
font_01_sfnt_off0000573f.bin
1d9379cd4368381850a1d86a21df64d196c52319883572e87b08c3ca9824608d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x573F 10192 bytes
font_02_sfnt_off00007a65.bin
7cf96205a2d1caceeecf9da1deff995e32a975450f8e0d45c44925d7509275e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A65 16176 bytes

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