Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3291586e5addf00…

MALICIOUS

PDF

112.2 KB Created: 2020-08-05 23:16:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf229e597e6a7bd09d73d8af50e5706b SHA-1: 2168e0452027e97ce16138dbbc7c54549c952750 SHA-256: e3291586e5addf00a32b865260ae15072e035a3599f60fcb0f71dbcf10616a0c
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is designed to lure users into downloading further content. The document also includes instructions that suggest the execution of Windows scripting tools, indicating a potential for further malicious activity. The presence of a password protection lure suggests an attempt to bypass security controls.

Heuristics 5

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/pify?keyword=aiff+d+license+log+book+pdf+download
    • http://files.victorpearlman.com/uploads/1/3/1/6/131637224/9692547.pdf
    • http://files.murraydopking.com/uploads/1/3/2/7/132741334/furoli_sazusorolesi_zefaba_pexulupagejog.pdf
    • http://files.woodpalooza.com/uploads/1/3/0/9/130969459/fijori-rewomibigonog.pdf
    • http://files.firefallseffects.com/uploads/1/3/1/4/131453199/maruroruluki.pdf
    • https://cdn.shopify.com/s/files/1/0430/8113/8343/files/14910298232.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3531/files/94683865637.pdf
    • https://cdn.shopify.com/s/files/1/0440/5005/5318/files/7273822408.pdf
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/54791427272.pdf
    • https://cdn.shopify.com/s/files/1/0437/2722/4986/files/45880306034.pdf
    • https://cdn.shopify.com/s/files/1/0437/2270/2999/files/nevemi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1351/9006/files/powershell_set_environment_variable.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/lezeponuvab.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/tifekasogujozisugobofa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/10226949679.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_off00017c4b.bin
b690680ad82e3669fe8bf4f4c7acff9172746be60475d3cfddd405921656c80b
pdf-font-stream PDF embedded font (sfnt) at offset 0x17C4B 5512 bytes
font_01_sfnt_off00018f38.bin
b8c012909186fde0951e1a3f22d46ff431663008ee93e45069290cbbdc255b00
pdf-font-stream PDF embedded font (sfnt) at offset 0x18F38 10552 bytes