Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd402594eac39b3…

MALICIOUS

PDF

57.2 KB Created: 2020-08-08 06:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5889f7b8cead81ab95a606795b7a0a89 SHA-1: 2a4a758fea79657836e24962590071a70f12f1ca SHA-256: bbd402594eac39b3e9510e215a5acce1c7765963d2cbd410255dfe060600dd33
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to PDF conversion and the malicious URL, suggesting a lure for users seeking such tools. 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=arabic+pdf+to+word+converter+online+free
    • http://vufarax.damianduguid.com/uploads/1/3/2/6/132681670/df2c953a785e36d.pdf
    • http://matolu.heel-strike.com/uploads/1/3/1/8/131871674/xepilajo_gelunimupudefok.pdf
    • http://pigikone.laughingbuddharetreats.com/uploads/1/3/1/0/131071157/pokorawafasi.pdf
    • http://files.marcoliva.com/uploads/1/3/1/0/131071209/xegiloximu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/62335420910.pdf
    • https://cdn.shopify.com/s/files/1/0435/5755/2277/files/29365572276.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/zumogejatowezomeguvul.pdf
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/buffalo_wild_wings_full_menu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/rifepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/gogawonemareset.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/duworateboduxakaxotovina.pdf
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/66521182960.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/hip_labral_tear_rehab.pdf
    • https://cdn.shopify.com/s/files/1/0430/5800/4117/files/sublime_text_3126_license_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/1045/6726/files/rozaxerafegitovefira.pdf
    • https://cdn.shopify.com/s/files/1/0440/6686/5302/files/73973611810.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_off00007f4c.bin
1f67e8bc599c30193ac3b0e85fa66447baf97ab81c7bb0a6f27f15c6661597f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4C 5252 bytes
font_01_sfnt_off00009146.bin
4c464929febe86e5b3c63b629ea5dec19aeae7cd6844a0f0183125baff35625b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9146 10344 bytes
font_02_sfnt_off0000b250.bin
daef45c4f1d050d26e3a953886189cf0a1ef4bbec98970fe2c169fe81ced5e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB250 10688 bytes

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