Malicious PDF — malware analysis report

Static analysis result for SHA-256 4719a4ec47bd8404…

MALICIOUS

PDF

45.9 KB Created: 2020-08-26 04:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94cfb0966b20f431e1e0124db24d3dc3 SHA-1: b5e18b168d96d5c6337c7d166ccf01bfc897bc1b SHA-256: 4719a4ec47bd8404ce8be0ea466e8d5612acf8738ae142e3a43cd08fb65d05bc
128 Risk Score

Malware Insights

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

The PDF document contains a lure for 'Quickbooks for beginners pdf' and embeds numerous links, including one to a known malicious redirector at 'https://ttraff.me/pify?keyword=quickbooks+for+beginners+pdf'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution. The presence of a link farm further indicates a malicious intent to distribute content through deceptive means.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=quickbooks+for+beginners+pdf
    • http://wafutata.dirtbagshop.com/uploads/1/3/1/1/131163930/275068.pdf
    • http://fatuz.christiangreenlmt.com/uploads/1/3/2/6/132680981/5244080.pdf
    • http://niruguvi.theconsciouscosmetologist.com/uploads/1/3/2/6/132696483/nenomow_jetuli.pdf
    • http://files.myportlandtherapist.com/uploads/1/3/0/7/130775690/jolupirififazi_mizimitulilofa_dixizelil.pdf
    • http://files.g-square.org/uploads/1/3/0/7/130775853/028e70c42.pdf
    • https://cdn.shopify.com/s/files/1/0437/8981/1861/files/vapovisukijaj.pdf
    • https://cdn.shopify.com/s/files/1/0454/6861/4808/files/pollination_process.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/38630995288.pdf
    • https://cdn.shopify.com/s/files/1/0437/6998/7223/files/tolefatis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9983/2995/files/nccn_guidelines_breast_cancer_2020_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/45508638492.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/zuzawoxitobuniwaneliv.pdf
    • https://cdn.shopify.com/s/files/1/0432/3983/3767/files/jitokem.pdf
    • https://cdn.shopify.com/s/files/1/0428/9848/9503/files/14620866817.pdf
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/windows_registry_editor_version_5._00.pdf
    • https://cdn.shopify.com/s/files/1/0437/7644/2519/files/fupanajoxipuzab.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1871/files/94509986774.pdf
    • https://cdn.shopify.com/s/files/1/0435/5466/8705/files/bogosoxaxomepanun.pdf
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/97926560577.pdf
    • https://cdn.shopify.com/s/files/1/0437/6274/5501/files/fesatufevaxadekemiletere.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_off00006956.bin
a9ddcaa80561abafe47093603e50ce65548285fbff9c6dd1c48e6e21e6457b7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6956 5148 bytes
font_01_sfnt_off00007acf.bin
7ca7f2ad155d4caf2f6743102cee68e8fa2a4d9fb9b9880e54d84c55b8676e6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACF 9852 bytes
font_02_sfnt_off00009c7a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C7A 4324 bytes

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