Malicious PDF — malware analysis report

Static analysis result for SHA-256 c213c70cb7e355cf…

MALICIOUS

PDF

41.1 KB Created: 2020-07-31 12:02:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50036720026a1107554b6aa7d9bbb483 SHA-1: fe8d1097ca47a868dd86ea67696d11bd9e46e746 SHA-256: c213c70cb7e355cf8f8dc032ee00c554a623914d2b8f0fae287d043eade26db1
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One critical heuristic indicates these links point to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=approval+addiction+joyce+meyer+pdf'. The document body is heavily obfuscated and does not provide clear textual lures.

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.cc/pify?keyword=approval+addiction+joyce+meyer+pdf
    • http://files.pegasosaddleryandleatherwork.com/uploads/1/3/1/0/131070539/43071bd64.pdf
    • http://files.eclectic-solitary-gemini.me/uploads/1/3/0/7/130775635/b3fe22d95207f5.pdf
    • http://files.ladavisbooksllc.com/uploads/1/3/1/3/131384777/ac94a8961b1e.pdf
    • http://files.dishanddabble.com/uploads/1/3/2/6/132681901/8c3dc45d8.pdf
    • http://files.noramacquarrie.com/uploads/1/3/0/7/130775888/4393597.pdf
    • http://files.dishanddabble.com/uploads/1/3/2/6/1
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/buxek.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/37119736233.pdf
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/13341906590.pdf
    • https://cdn.shopify.com/s/files/1/0433/1021/9422/files/fipusezobaborovadekotude.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/51669863932.pdf
    • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/jaxofedageguj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2650/files/lovadegisavonifunip.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/jaridubimijunevusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/tusaga.pdf
    • https://cdn.shopify.com/s/files/1/0430/8870/7733/files/rijotisavigifawarewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53551688275.pdf
    • https://cdn.shopify.com/s/files/1/0436/1977/8720/files/dupif.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_off00006101.bin
793b001af5fec895914a05ba9cd4b12e02cf3014cd1131931f1cfd5142f326cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6101 5136 bytes
font_01_sfnt_off0000726f.bin
1dde90d604708521844dfe3aba9ee0d0a2d795049f57be7910bf4bb4f6302239		 pdf-font-stream PDF embedded font (sfnt) at offset 0x726F 10336 bytes

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