Malicious PDF — malware analysis report

Static analysis result for SHA-256 9efec5f278b4029e…

MALICIOUS

PDF

45.1 KB Created: 2020-09-18 14:38:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cdfa7f57ed84f6a3e8030dd358fb69c SHA-1: 613e3272e6d4b87d414495be1252e07c902129a5 SHA-256: 9efec5f278b4029e9960c8f5b61d6df92903318c00ec9a8e4533031995de2251
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, a technique often used in SEO link farms to manipulate search engine rankings or to distribute malicious content. One of the primary links, 'https://ttraff.link/wix?keyword=a+love+to+last+may+4', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, reinforcing the link farm and redirection attack pattern. No scripts were extracted from this sample.

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=a+love+to+last+may+4
    • http://nerijaged.swissamericanmonks.org/uploads/1/3/2/8/132816091/kakonesididu.pdf
    • http://files.firecrafted.com/uploads/1/3/1/3/131383386/ragulawibox.pdf
    • https://8906ce54-2911-4d9b-9511-aa3009fdbef6.filesusr.com/ugd/21b4a7_11a9406274fe48bd9c1279bd52626791.pdf?index=true
    • https://967c7c56-bf14-4fea-981f-b66135246f76.filesusr.com/ugd/0baf77_bd8da147786848a79c3abc42315ca09b.pdf?index=true
    • https://9e8faae8-71a8-441f-a209-f9ec8f1d825b.filesusr.com/ugd/cfbfd2_6ad919dbe9764c448dfae62d70b3107e.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/dedunuzevedajesejipaxadif.pdf
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/4857021702.pdf
    • https://cdn.shopify.com/s/files/1/0465/4016/1183/files/7756939282.pdf
    • https://e13531f5-3217-4b59-b6c6-bb1f94ee9ab7.filesusr.com/ugd/4b874d_64d91ad463df4b6f870e36cee2548349.pdf?index=true
    • https://6ad52f20-a09d-406e-a8a4-e385650e308f.filesusr.com/ugd/0a0016_ef8960056d24429c8c76f38dd472dd7b.pdf?index=true
    • https://e6ae2117-fb17-49f2-83bc-d15f1bd43723.filesusr.com/ugd/de60da_77ab74a8556c44b4bdeaa4bfeb1687f0.pdf?index=true
    • https://0bf46c3e-6783-4f00-b0d4-2371f24690d1.filesusr.com/ugd/81d6a4_9e717410555741099e30c4681203bee4.pdf?index=true
    • https://809a7bcf-18c5-4cab-9c49-0c413a0364f1.filesusr.com/ugd/69695d_4f91dc956c5e4d968bdb1fed4787ccca.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066c1.bin
c111cca0efc13777c6ad2df24b6c6a246ea164d4ef3c539acc11dc778654a7b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x66C1 4608 bytes
font_01_sfnt_off00007686.bin
478d6d4f9ad0c4fe949b1d9dad04c494a70519c669ea68c460f1fd1751d163f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7686 10360 bytes
font_02_sfnt_off000099f2.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x99F2 4324 bytes