Malicious PDF — malware analysis report

Static analysis result for SHA-256 46caf9e11eaa31ed…

MALICIOUS

PDF

35.4 KB Created: 2020-09-22 07:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89f2e36f956eae9cbbb9301f3edd439e SHA-1: 11df1a0b7651da348d26cf9af8bc18536c4df586 SHA-256: 46caf9e11eaa31edfd3c1cd43ae61683ef543effa6be7586adfa2ee088405e79
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains numerous embedded links, with at least one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct attempt to lead the user to harmful infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of outbound links, likely for SEO manipulation or to distribute malicious content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector.

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.club/wix?keyword=donnie+darko+costume+skeleton
    • http://files.estherazar.com/uploads/1/3/2/7/132740536/vamejodegabobavev.pdf
    • http://fobudif.individualee.com/uploads/1/3/1/1/131164250/3eaa461c4b.pdf
    • http://wivifes.mariannezarzana.com/uploads/1/3/1/3/131379724/a2a0a825c7.pdf
    • http://files.shesellsaustin.com/uploads/1/3/1/4/131453990/viwulezulifo-dixoleluse.pdf
    • https://8488bccb-df03-4a77-a2d0-988b5c225fd5.filesusr.com/ugd/285be4_b09256185c40431fab7a38d240c7c679.pdf?index=true
    • https://2d91a9b9-dc35-40be-b433-6e710fbed054.filesusr.com/ugd/8a9bcc_01ea720e16e54976b10cc2d4fcebed49.pdf?index=true
    • https://a7bfcf19-a5e2-4dd9-8074-0a0ae29fc3ee.filesusr.com/ugd/f1780b_809ce775374145af80159e053072f3c6.pdf?index=true
    • https://28c8f09e-b5c3-4e21-888b-ceeeefc98617.filesusr.com/ugd/062c90_d183dfa6024e42d9a2da73f0b0ba9338.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/93757105079.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/4th_grade_math_book_mcgraw_hill.pdf
    • https://cdn.shopify.com/s/files/1/0428/8197/4435/files/63768270814.pdf
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/after_2_gratis_download.pdf
    • https://a2983a79-e724-4552-9872-0cc000479140.filesusr.com/ugd/d3758e_2b5fb786f78046699e4bf479f95439db.pdf?index=true
    • https://5a839022-31d0-4245-a2bf-0d711586f379.filesusr.com/ugd/622218_4906bda96fbd40b7ae9e8bf3120fc28b.pdf?index=true
    • https://d1f8d90e-e9a1-4cea-ac39-4141be4ccc3c.filesusr.com/ugd/5bb01c_087ac79e92a740529f20065ddc7d7b92.pdf?index=true
    • https://d76d2c75-691d-4e93-857d-39ee70143147.filesusr.com/ugd/66f7a0_c2c9918efb8f4424917ba33e6de9e884.pdf?index=true
    • 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_off00004b6c.bin
b094b070f12523816fc93ebcfa8e5684bc2b416677b23522b844455477cd68c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B6C 5148 bytes
font_01_sfnt_off00005cdf.bin
36b9c9f867ce1f747e1c1f2fb10e19c3ca4ba157a497b84bdd31eed5e17efb7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDF 10500 bytes