Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9c12e63713db60…

MALICIOUS

PDF

39.4 KB Created: 2020-07-10 19:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d7cb4281c1462a52df5087d7b309870 SHA-1: 89cb6acf9bf834c23eaa2fefb7c079c5d755e45f SHA-256: cd9c12e63713db60f731a358b5ed27e1c2f6e0bb03a3b8a8185b2881ef3b222d
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 to create link farms for SEO manipulation or to redirect users to malicious sites. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/wb?keyword=eppc%20egypt%20pdf, which is flagged as malicious. The presence of numerous other PDF links further supports the malicious intent.

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.com/wb?keyword=eppc%20egypt%20pdf
    • http://files.susanlynchshamanicservices.com/uploads/1/3/2/7/132741433/7450288.pdf
    • http://files.vvphotography.ca/uploads/1/3/2/6/132683088/12ab9b6a.pdf
    • http://files.southwestdistrictcoinclub.com/uploads/1/3/0/8/130873894/sunotezeme.pdf
    • http://files.arizonalapidarymaterials.com/uploads/1/3/1/3/131380288/ponenipepegal.pdf
    • http://files.rwwarehousesale.com/uploads/1/3/1/4/131455463/nibeb.pdf
    • http://files.durbandrags.com/uploads/1/3/1/3/131378952/83fbafd2bf.pdf
    • http://files.wordriff.com/uploads/1/3/0/8/130874411/notij_kuxerezise_batedof_xunudavade.pdf
    • http://files.theyogaschoolny.com/uploads/1/3/0/7/130775942/668541.pdf
    • https://rafupodi.files.wordpress.com/2020/06/nekavegulolewizudapod.pdf
    • https://zegekodejove.files.wordpress.com/2020/06/fofejotovodivuwativo.pdf
    • https://wowewuso.files.wordpress.com/2020/06/bilamake.pdf
    • https://xopipovezeru.files.wordpress.com/2020/06/26853218680.pdf
    • https://selusizaf.files.wordpress.com/2020/06/77666571406.pdf
    • https://tatokarisifo.files.wordpress.com/2020/07/fuluxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mojarugalemidim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/xokonozidivirimubifefor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8833338052.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_off00005d91.bin
f40955f7e1b4c5b627cf4c804270dcf32417b130fdf9940f80dd50240b4b1835
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D91 4388 bytes
font_01_sfnt_off00006c98.bin
3312e18bdfecbe046c51075e191c5dd427cf1c23dfdab811877363d615714663
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C98 10536 bytes