Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ddab07ac503413e…

MALICIOUS

PDF

50.2 KB Created: 2020-08-02 10:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c107391ba0c9a9a39755f1f82594106 SHA-1: 25b71033863c43bc36b66fb3c29b3af99134d181 SHA-256: 9ddab07ac503413e0335a4bcb48b68db16c63815922a2a0e8fe1dd08cc79109b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=dynamic+bones+gravity'. This suggests the document is designed to direct users to malicious infrastructure, potentially for phishing or malware distribution. The document body contains garbled text but includes the malicious URL and several Shopify URLs.

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=dynamic+bones+gravity
    • http://files.nationalculturalheritagetourismcenter.com/uploads/1/3/0/7/130776573/mixufoligi_xovusababawiw_vavasezorikivo.pdf
    • http://files.vanfiretrust.org/uploads/1/3/1/4/131453062/ae5cd5f.pdf
    • http://files.schoolpatio.com/uploads/1/3/2/7/132740415/6232202.pdf
    • http://files.morriscountyplaytherapy.com/uploads/1/3/0/8/130814515/13957b015.pdf
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/94002270791.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/nibutebatodazunapuluro.pdf
    • https://cdn.shopify.com/s/files/1/0440/0755/5222/files/lanipe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/21478888371.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/53523442413.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/zojakemot.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/fibitedezigida.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/74846546060.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/vorenudarokakibamab.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/pezarepelejofe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1305/4357/files/totopaduwov.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/nomakixos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/11464874140.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_off000079f4.bin
a6ad143cc23b591192b4269df17f25fadaab39b85cb06c0c822631fd0bc8b350
pdf-font-stream PDF embedded font (sfnt) at offset 0x79F4 5176 bytes
font_01_sfnt_off00008b7b.bin
d31155948b55d0ec42c3b08225d7129f4ca6a4b6f8b15ff5f9e353a1ad958e2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7B 10152 bytes
font_02_sfnt_off0000adf6.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xADF6 4324 bytes