Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa84fff60ee48f6…

MALICIOUS

PDF

55.8 KB Created: 2020-08-02 12:00:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f8d45c62e9dcf0080faf9628dc623d5 SHA-1: 0132366d6db7cf4cad0e7413a23d5d7a46869085 SHA-256: 9aa84fff60ee48f634b3f23d86fa7addd977cdacd864769915837c749e7b4dde
120 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The presence of numerous PDF links and a malicious redirector indicates a likely phishing or malware distribution attempt.

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=mending+enchant+minecraft
    • http://files.wlschaska.org/uploads/1/3/0/9/130969938/ratokifulajit.pdf
    • http://files.jewelnutritionist.com/uploads/1/3/1/6/131637240/919623.pdf
    • http://files.sgkey.com/uploads/1/3/1/3/131397973/1df0ef3cf63dc4.pdf
    • http://files.stirlingguesthouse.co.uk/uploads/1/3/1/0/131070581/pebavepa_jofibevinexeba.pdf
    • http://files.stpaulpensacola.org/uploads/1/3/2/3/132303339/vebofaxosutijak.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/gevituvilamufeku.pdf
    • https://cdn.shopify.com/s/files/1/0435/3759/6575/files/oxygen_not_included_wiki.pdf
    • https://cdn.shopify.com/s/files/1/0434/5767/5421/files/woraju.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/39116876105.pdf
    • https://cdn.shopify.com/s/files/1/0432/5549/6866/files/jagakobomisaxuvawemub.pdf
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/watafejuru.pdf
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/96193854645.pdf
    • https://cdn.shopify.com/s/files/1/0437/2476/7400/files/lejowogumotatibuminit.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/jaxefogiteluparufisu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/12581761213.pdf
    • https://cdn.shopify.com/s/files/1/0429/2080/4518/files/overhead_door_legacy_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009bd3.bin
8ee78f501dfb348107066f3872fa4a1a17af6217b6d4a21dc0f00bc5620d152b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD3 5232 bytes
font_01_sfnt_off0000ad82.bin
757b7a11be10843fd2b10f0b876308bf25b2093a0c573035f0118c2a9c913778		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD82 10668 bytes

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