Malicious PDF — malware analysis report

Static analysis result for SHA-256 8369e778cc317e5b…

MALICIOUS

PDF

51.1 KB Created: 2020-08-22 19:32:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 556228dd77e0defea13103a51b0d4991 SHA-1: cb45bd1ca19bb54ec08ce6cdd16cdf9c2095d7fe SHA-256: 8369e778cc317e5b31aa1a421b8b7e2c1081dd425a168e0da12cdbb60c634c0a
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to other PDFs hosted on Shopify. The embedded document body text, though partially corrupted, includes the same malicious URL, suggesting the primary intent is to redirect users to potentially harmful content. No scripts were extracted, and the document structure itself does not indicate specific exploitation techniques beyond linking.

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.com/pify?keyword=formation+of+benzoic+acid+from+benzaldehyde
    • http://nuzodape.jjohnsonartist.com/uploads/1/3/1/6/131606295/cd7dd.pdf
    • http://files.theadventureawaits.com/uploads/1/3/0/7/130775953/3651408.pdf
    • http://files.voiceforanimals.net/uploads/1/3/0/7/130776661/3d0cf28ce5db7.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/vafurizupoxurugeritew.pdf
    • https://cdn.shopify.com/s/files/1/0437/8198/0317/files/98204834293.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/sesoxogumap.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/lifofu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0673/7053/files/campylobacter_jejuni_en_alimentos.pdf
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/bobujafi.pdf
    • https://cdn.shopify.com/s/files/1/0439/9549/6606/files/blighia_sapida.pdf
    • https://cdn.shopify.com/s/files/1/0432/7876/2139/files/alliant_reloading_data.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4935/files/robifiduraze.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/45959006830.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/cateye_velo_8_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_off000089cc.bin
b4cfd093e8aaf3c874c4775bb5e34b5885d5b2d50dede6d0f55c41f1e5b7cf6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89CC 5328 bytes
font_01_sfnt_off00009bc7.bin
5bdc891498cc18f920d34217ec843d4d10eb3adbffc9a43b66e4a891b5bd0dd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC7 10440 bytes

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