Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ccbca8ad10f034a…

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 01:14:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8fcf16935328326521ca3d7a655b367 SHA-1: adbe03e8c1c9737c9e0f19a2b90d0ef60eeb9a75 SHA-256: 8ccbca8ad10f034ac23a3c3affc665b52902e3e12fe6a44caa3c0c30e7344178
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to 'Eso provisioning leveling guide 2018' and the malicious URL, suggesting a lure. The PDF also contains a large number of external links, many of which are benign Shopify links, but the primary malicious link is the focus.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=eso+provisioning+leveling+guide+2018
    • https://static.usrfiles.c
    • https://cdn.shopify.com/s/files/1/0439/4975/2478/files/battlefield_5_free_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/17891462042.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/72535397873.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf34964ee53040f0ae4f55e428970441.pdf
    • https://static.usrfiles.com/ugd/b8c837_a1befd1435fb456193bef9b441353e4c.pdf
    • https://static.usrfiles.com/ugd/5cf23b_428bb2be918c49dc8551a8210d476cb6.pdf
    • https://static.usrfiles.com/ugd/9a242c_87d2377889bf494ea6c7d2ff404fa500.pdf
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/moponupulolaram.pdf
    • https://cdn.shopify.com/s/files/1/0431/4310/2618/files/kedire.pdf
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/vuxizawiwukuwaki.pdf
    • https://static.usrfiles.com/ugd/3dd68e_c04a15a7f5434a09a74b266f6e35e338.pdf
    • https://static.usrfiles.com/ugd/d3758e_929135a0bf694cf784ada67e81de13bc.pdf
    • https://static.usrfiles.com/ugd/575363_fe83c8a0fa424074a47f4ca38d482c0c.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f1da4ce6619429eb17f13416e33ad5a.pdf
    • https://static.usrfiles.com/ugd/b8c837_09df1c41986148b692514e324df8a25e.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_off00006710.bin
8f15057c2768a93ddb8280649d6e87132758b6be8f8b2f86c1fdea5166802f9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6710 5452 bytes
font_01_sfnt_off000079c7.bin
11780cbf41a62f4f79436e65263b52bd73a4aa80bbaa38837547deeac6cc5ede		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C7 10088 bytes

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