Malicious PDF — malware analysis report

Static analysis result for SHA-256 302ccaecd2a805a7…

MALICIOUS

PDF

49.9 KB Created: 2020-08-02 16:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aebb6af78c956836225256c118e41a1a SHA-1: 7d9403179b972942c697063783b5dbbb2bc95a94 SHA-256: 302ccaecd2a805a7d7fc978338fcc3724dc36a5117c22285e1c49ac578d37cee
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, also contains the URL for the malicious redirector and several other PDF files. This indicates a clear intent to direct users to potentially harmful websites under the guise of providing content related to anime music.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=best+anime+ost
    • http://files.peacocksprettys.net/uploads/1/3/1/3/131380641/razek.pdf
    • http://files.icomos-sg.org/uploads/1/3/2/7/132710780/65d2c87d75.pdf
    • http://files.wastelessjewelryandcompany.com/uploads/1/3/1/3/131398424/8010311.pdf
    • http://files.lisadring.com/uploads/1/3/0/8/130874413/dbee615d.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/24207434571.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdf
    • https://cdn.shopify.com/s/files/1/0440/6935/5670/files/homelite_super_2_chainsaw_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/1707/5868/files/3gp_mobile_movie_download_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotalufakelani.pdf
    • https://cdn.shopify.com/s/files/1/0434/8071/1325/files/magevidamumekerukapono.pdf
    • https://cdn.shopify.com/s/files/1/0435/6859/5112/files/jonidopesozodo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4696/8218/files/kekopuxosefewotuxorumoda.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/tusodabamoxit.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/3903117263.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.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_off00006433.bin
29b259eaf349ac61a23541eb564545655ce7d79f48e7231f4678e23a0c983a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6433 2940 bytes
font_01_sfnt_off00006eb2.bin
0a608f4b58939e529ddaa436820172861350888387abeb405f03b197561773e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB2 4752 bytes
font_02_sfnt_off00007ecb.bin
84e805e4ad807ad57fbdb6881b6cfc026d93efc7380809774b09e38ef15456c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECB 10504 bytes
font_03_sfnt_off0000a2e9.bin
2eb7167e79207dfa2c270e1d1ea30e95be763f82a1f494b9c7c1410a93bbc1cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E9 16788 bytes

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