Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2fdf792c16071d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-22 22:14:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6498bc6770fc69113df26d7776a69436 SHA-1: 850ae12f210765933f0850e048a3f143dc0af71e SHA-256: cd2fdf792c16071d129ec5c73ec7202a067a612648658faf5cf778cfbe60c06f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it is a malicious redirector, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to 'wkhtmltopdf', suggesting it was generated by a tool. The presence of numerous links to shopify.com PDFs, while individually benign, contributes to a link farm pattern, likely for SEO manipulation to attract victims. The primary malicious intent appears to be redirecting users to a malicious site.

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/pify?keyword=becalmed+sheet+music+trumpet
    • http://files.drjrealtalk.com/uploads/1/3/0/7/130738681/5274141.pdf
    • http://files.multiplatformmastermind.com/uploads/1/3/1/3/131398322/wikuxovimobomozaju.pdf
    • http://wokotoxo.adkstrings.com/uploads/1/3/1/8/131871871/wobepufesodoti.pdf
    • http://depeto.nutritiousmindsconsulting.com/uploads/1/3/0/7/130775493/262b38a7a402fee.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/pneumatic_drilling_machine_working_principle.pdf
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/95980788779.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/24721024917.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/captain_america_winter_soldier_script.pdf
    • https://cdn.shopify.com/s/files/1/0428/2944/7335/files/carmeuse_holding_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/nokol.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/pagiraxijim.pdf
    • https://cdn.shopify.com/s/files/1/0436/8426/6137/files/81328426469.pdf
    • https://cdn.shopify.com/s/files/1/0463/0455/9261/files/minecraft_aether_mod_1._6_4.pdf
    • https://cdn.shopify.com/s/files/1/0461/9829/2638/files/cassia_fistula_medicinal_uses.pdf
    • https://cdn.shopify.com/s/files/1/0459/2317/2503/files/75351536291.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/crunchy_roll_login.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/90311034409.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/sebifenifopafazenopigez.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b93.bin
f9f4f752f83a59ed436a7f5620603a797f016087a2c6d10b51fc4108f143ed87
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B93 5028 bytes
font_01_sfnt_off00006ca5.bin
db13c262f73191d7f4d620f973a2e97c86ae2c3138b4c28886f26c0fc9a33242
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 15712 bytes
font_02_sfnt_off00009d93.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D93 4324 bytes