Malicious PDF — malware analysis report

Static analysis result for SHA-256 b036cad6c2425844…

MALICIOUS

PDF

48.8 KB Created: 2020-08-17 11:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e1a0c9cdb4151dff2be5a3b62811d67 SHA-1: b60371eb1a1de8190d5d54672bf714411d3bdee7 SHA-256: b036cad6c24258448a6609fe31576503f900b071082cdabf0b37931b60d13204
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this same URL and appears to be a lure related to a game guide. The file also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or distribution mechanism. No scripts were extracted, but the primary malicious action is the redirection to the malicious URL.

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=pillars+of+eternity+barbarian+class+guide
    • http://files.nkaskephotography.com/uploads/1/3/0/7/130739309/defepizobitaf-zoxiduvibagif-kebewanejesagug.pdf
    • http://neruxeku.drummondsmedlegal.com/uploads/1/3/1/4/131405927/9985540.pdf
    • http://nusaba.samarbetsbolaget.com/uploads/1/3/1/3/131398140/nukubas_bupagogoro_kugafe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/82739113966.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/56041328749.pdf
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/22337431448.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/fuluvemugiferisiloroxili.pdf
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/zanagiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/7609/1046/files/36658468247.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/carnival_of_venice_violin_solo.pdf
    • https://cdn.shopify.com/s/files/1/0448/0398/1463/files/polynuclear_aromatic_compounds.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/39299863946.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8456/files/namatevob.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/28416078548.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/jojos.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/96354854026.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_off000080a4.bin
146aa051299e41f06d3415857e2a94dcacff7e7b9ca956bb16d8a3a1ce523a78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A4 5432 bytes
font_01_sfnt_off00009327.bin
d049637c8018002fdcee88324ab63ad4aa49ce67aff7cf485d7a3fc944c244e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9327 10208 bytes

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