Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5d551a0b811d86…

MALICIOUS

PDF

46.3 KB Created: 2020-08-03 07:02:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cffeb70e387d6b7f19b43a443a0763e SHA-1: c6907b2e039812a12cef008156f4af5c30a70b23 SHA-256: 9e5d551a0b811d86585d0b79504660c264f220f1ac5f1c099a93cac452d58e65
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF document contains a mass external link farm, with a primary link redirecting to known malicious infrastructure. The document body, though obfuscated, contains the URL https://ttraff.cc/pify?keyword=microsoft+virtual+wifi+miniport+adapter, which is a critical finding. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be intended to trick users into providing passwords for archives, a common tactic for evading gateway security. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=microsoft+virtual+wifi+miniport+adapter
    • http://files.pom-melbourne.com/uploads/1/3/0/7/130776895/9669237.pdf
    • http://files.deleswaonthetrack.com/uploads/1/3/1/3/131379899/mogogagimelevutivome.pdf
    • http://files.piedmontgreencbd.com/uploads/1/3/1/4/131406715/nalakifaseko.pdf
    • http://files.blakerichterproductions.com/uploads/1/3/0/9/130969937/26ee14e9889d.pdf
    • http://files.backpacksbusesandburpees.com/uploads/1/3/0/7/130775429/3bd88c8be.pdf
    • https://cdn.shopify.com/s/files/1/0428/6896/5532/files/jibenizolerul.pdf
    • https://cdn.shopify.com/s/files/1/0430/7245/4810/files/luforaxuporepopizunudaji.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/16650526981.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/muxupozataxawe.pdf
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/tamibodolebipisujezirowir.pdf
    • https://cdn.shopify.com/s/files/1/0437/0114/1657/files/32486645776.pdf
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/hayward_sand_filter_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60359225188.pdf
    • https://cdn.shopify.com/s/files/1/0437/4695/1319/files/javafx_disable_button.pdf
    • https://cdn.shopify.com/s/files/1/0437/6333/5319/files/73220259780.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/zugasodo.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_off000055b6.bin
390efb0886e79aa06fbe00bd148fb9f7e0f5e32d07cd5b534a2bee848b2b636a
pdf-font-stream PDF embedded font (sfnt) at offset 0x55B6 5456 bytes
font_01_sfnt_off00006854.bin
f1e2cff0a92b4f6ae6a7d5b6ed207b6cb15752df8e6b7b98fb7ed5258e19cd3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6854 17332 bytes
font_02_sfnt_off0000972c.bin
2ec7b87bc56cc33d32d243ecb23d136f13b6601874843951a4ee16d7972f48d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x972C 16116 bytes