Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb94ed3024311ed…

MALICIOUS

PDF

48.1 KB Created: 2020-08-08 21:32:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cd4a87584977c4f5d74e88e119d60a0 SHA-1: e19f964132adb7d6c39e20f0e7cadb54849ccce0 SHA-256: afb94ed3024311ed30316ee895e1ebba1b16cc1177395b7aa021a8c02b35b619
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=alternative+energy+books+pdf', is designed to lure users into clicking it under the guise of finding 'alternative energy books'. The file also exhibits characteristics of a link farm, with numerous embedded links pointing to external PDF files, many hosted on Shopify. The primary malicious intent appears to be directing users to the ttraff.cc redirector.

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.cc/pify?keyword=alternative+energy+books+pdf
    • http://files.timetravelersoforegon.com/uploads/1/3/1/4/131482823/pepafo-setirebovo.pdf
    • http://files.rustyforkranch.com/uploads/1/3/2/3/132302876/6441332.pdf
    • http://files.hayleywalkerart.com/uploads/1/3/0/8/130874642/mepod-zikilexuja-dubezexisoxax-jitejoguwegu.pdf
    • http://files.nocontractppc.com/uploads/1/3/1/6/131637316/zasanifo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/29770116891.pdf
    • https://cdn.shopify.com/s/files/1/0434/5223/5938/files/waruwewurugobol.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/equivalent_expressions_worksheet_7th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/dorokifadejiso.pdf
    • https://cdn.shopify.com/s/files/1/0429/9699/0105/files/57548471107.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/addictive_thinking.pdf
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/bethesda_clasificacion.pdf
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/dejutizujazinuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0802/3966/files/samavoxalola.pdf
    • https://cdn.shopify.com/s/files/1/0429/7215/1959/files/9950235258.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/99871720686.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a40.bin
7610ff4905e71719dd48e45c4df9bea837695ce5f0cc8e745cd083cc06faddbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A40 5352 bytes
font_01_sfnt_off00006c7a.bin
49f1c345582212729590e0456707ca92d3838aef8cba26fbcaa28f8c5b0a0640		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7A 2116 bytes
font_02_sfnt_off00007645.bin
e9d77023e1a26246c1a410d509b44e0adb0cba8331655e6faa671c42c8b9d2b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7645 14964 bytes
font_03_sfnt_off0000a4f0.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4F0 4324 bytes

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