Malicious PDF — malware analysis report

Static analysis result for SHA-256 e36d07445d952887…

MALICIOUS

PDF

41.1 KB Created: 2020-09-17 19:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7776124f8331bfd0b2ae281793687692 SHA-1: bc11bf717cf9210357ea273b98d7e4149bd9a986 SHA-256: e36d07445d952887d04b733156b5e20169570d646320f8d8a89a47cdb13dff18
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm. One of these links, 'https://ttraff.link/wix?keyword=dallas+observer+backpage+classifieds', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Dallas observer backpage classifieds' and numerous URLs, reinforcing the lure. The primary attack pattern involves redirecting users to malicious infrastructure.

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.link/wix?keyword=dallas+observer+backpage+classifieds
    • http://files.anamcharaministries.org/uploads/1/3/0/7/130739826/taliwenabuwe.pdf
    • http://kavor.newagehomerenovations.com/uploads/1/3/0/8/130874620/6356609.pdf
    • http://files.thebluedaisyandco.com/uploads/1/3/2/8/132814791/4093011.pdf
    • http://jutes.georgepaulmiller.com/uploads/1/3/0/7/130776485/fuber.pdf
    • http://files.thedemeterfoundation.com/uploads/1/3/1/1/131164114/6606195.pdf
    • https://c9b2b24e-9df5-408e-92d9-56977e0db45a.filesusr.com/ugd/2ca22b_d301435d3c5845cbb8dc00518b68e912.pdf?index=true
    • https://b3965eae-43b0-43dc-85ad-46e23b70ed35.filesusr.com/ugd/ed1d2e_8ca9d9d7e43b42c5aa1643824db0eb89.pdf?index=true
    • https://e7765cff-d088-4bce-a415-466e0c24fa62.filesusr.com/ugd/54e393_be10916445f947718fa4829e1aee1ce3.pdf?index=true
    • https://caadbfc7-aa35-4245-8118-c9754ad3fe4b.filesusr.com/ugd/8a5fcf_43660ef36c34495b995a19947fc860c1.pdf?index=true
    • https://b6ccbba8-d4d5-4ebe-9b8a-b40de7ff9df1.filesusr.com/ugd/71fd01_722b1c75e5454abaac054066d795440f.pdf?index=true
    • https://4a16da2b-5ae3-431e-82bd-fdb426a54496.filesusr.com/ugd/ee9d3f_e610b2121e6f429bb3e900d1e2b814c9.pdf?index=true
    • https://903ac84f-ee0b-4ded-a999-f9424e7b8d75.filesusr.com/ugd/9d869b_f95025b8cedc4a66b7dd36f595691df0.pdf?index=true
    • https://5cf6e349-b729-43d0-9743-3a1ef24e590f.filesusr.com/ugd/55f640_dd370c76fddc4fb9834913c8cee992eb.pdf?index=true
    • https://860cd934-2df3-4a8f-bc09-59b2c510fb1d.filesusr.com/ugd/4ae4db_98f3a90f203d4cf6b1227dd644daa89b.pdf?index=true
    • https://c9e0c7f9-ac79-487d-9c26-f86166ed3e34.filesusr.com/ugd/1c8c1e_964de4e161624a3a8a57716b9a5e6db9.pdf?index=true
    • 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_off000060af.bin
f40ce694f9ed43a71a256da1b9664d3b2b8b94d4fc362930f4fc3fe73bb97d45
pdf-font-stream PDF embedded font (sfnt) at offset 0x60AF 5588 bytes
font_01_sfnt_off000073c7.bin
ea7c7fa7a57a2cf9a4470f07e126c88972d72c431a107bbbdfde7269a0104b96
pdf-font-stream PDF embedded font (sfnt) at offset 0x73C7 10468 bytes