Malicious PDF — malware analysis report

Static analysis result for SHA-256 862d4db9566d8886…

MALICIOUS

PDF

53.8 KB Created: 2020-08-02 21:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 527e24e00ffffc4373b1c9b84ab2d61e SHA-1: 11b475a41a97dab5ece161ef4569fbf30e9b790b SHA-256: 862d4db9566d88865c92c5b8a3efb069208cd1a98a7e9919d4ccb00addabd0d9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary redirector URL is https://ttraff.cc/pify?keyword=what+is+macroing, which likely leads to further malicious content. The document body itself is heavily obfuscated but contains references to the redirector URL and other embedded links hosted on cdn.shopify.com.

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=what+is+macroing
    • http://files.gigikentwellness.org/uploads/1/3/1/3/131398117/8797277.pdf
    • http://files.stealthentertainment.net/uploads/1/3/2/6/132682030/zedipibabuguvinogiri.pdf
    • http://files.rlighthouse.com/uploads/1/3/1/3/131379174/remidakoluwavam-vufiw.pdf
    • http://files.ancestorsfromvoss.com/uploads/1/3/0/8/130873715/7851958.pdf
    • http://files.hopeak.org/uploads/1/3/0/7/130775628/2901537.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5797/files/xopewik.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/mimivapifixifiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/1932/2022/files/26745420586.pdf
    • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/tisugowemosimasew.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/57977014811.pdf
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/budalujoporisutizagirome.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/49697769753.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/2380780655.pdf
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/kugalo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/witcher_3_unification_patch.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83971047952.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/davunaxejapezuxipuwuwozom.pdf
    • https://cdn.shopify.com/s/files/1/0429/5553/8595/files/kujubafoxu.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_off000095b2.bin
be2919d603ce1547dfe4fe9988b1225dd3decc5052623f77a7f99588ad62c62e
pdf-font-stream PDF embedded font (sfnt) at offset 0x95B2 5192 bytes
font_01_sfnt_off0000a73f.bin
41b9d4809ba2e6f098a63774a049b2ee8af0510fa01ab97f0a97a8b00c17070a
pdf-font-stream PDF embedded font (sfnt) at offset 0xA73F 10340 bytes