Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc09487ab81009c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-31 05:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d7b6a044494d3248f50f540fd184291 SHA-1: 673cf819b807dc4f34aaf95e03be79602a2fcbff SHA-256: 3cc09487ab81009c32530e9874009545735f19d50747c775f6bfe1dd587a71a2
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a large number of external links. One of these links, 'https://ttraff.cc/wix?keyword=photos+d%2527%2527enrique+ariel+gonzalez+dia', is flagged as a malicious redirector. The document body contains garbled text along with several URLs, reinforcing the link farm and redirection behavior. No scripts were extracted, and the primary malicious activity appears to be the distribution of malicious links.

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/wix?keyword=photos+d%2527%2527enrique+ariel+gonzalez+dia
    • https://cdn.shopify.com/s/files/1/0439/5941/9038/files/arya_songs_free_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0429/6173/1743/files/latanupiwupenixom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0817/1925/files/bazafodurizofojumevunege.pdf
    • https://static.usrfiles.com/ugd/19ce5d_ee66dbd3c36d4e3e8dd722ab510d792f.pdf
    • https://static.usrfiles.com/ugd/b7082a_8e0694060511464682968838de368b9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_618008f2ae2d4612b1a4364c1bd7a72d.pdf
    • https://static.usrfiles.com/ugd/fef806_09217849223d4432ba551ce9df2befee.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/72971111103.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/95770583850.pdf
    • https://cdn.shopify.com/s/files/1/0450/5151/0936/files/barfi_full_movie_with_english_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0437/3551/5290/files/jomulizida.pdf
    • https://cdn.shopify.com/s/files/1/0440/6083/6005/files/vebatupelasa.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/arlington_10_day_forecast_va.pdf
    • https://cdn.shopify.com/s/files/1/0429/2309/8279/files/18434702577.pdf
    • https://cdn.shopify.com/s/files/1/0431/6410/6901/files/51595637532.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_off00006fed.bin
7b29217af5394648c9ebf173270006cead7413cebfe75b9c5d8463ca5c663d2c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FED 5300 bytes
font_01_sfnt_off000081e3.bin
295decd481a1c6f3a3ebeeeca434b1ef75d15e0e91b387a94850066702837ce3
pdf-font-stream PDF embedded font (sfnt) at offset 0x81E3 10776 bytes