Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb95121c6fc8929c…

MALICIOUS

PDF

48.3 KB Created: 2020-08-20 14:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6768d6f6389bdb50c1ae1ccf6f39ce9e SHA-1: 1035b38a4d665c16fb6264b3dcd6625b4e666ca3 SHA-256: eb95121c6fc8929c4b851eb9b59ac4eb40ccdf94d94dbf2e705ce1279e7d840f
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to a worksheet and includes the malicious URL. The primary attack pattern involves luring the user to the ttraff.com redirector, which likely leads to further malicious content. No scripts were extracted, limiting the analysis of specific execution techniques.

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=naming+ionic+compounds+and+covalent+molecules+worksheet
    • http://files.4livesports.com/uploads/1/3/1/3/131379510/bugitoduberinageb.pdf
    • http://files.theflourishsisterhood.com/uploads/1/3/1/3/131398156/95d18288fa830.pdf
    • https://cdn.shopify.com/s/files/1/0435/7649/2195/files/keith_urban_kiss_a_girl.pdf
    • https://cdn.shopify.com/s/files/1/0440/0952/1317/files/20424279562.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4940/files/37363827006.pdf
    • https://cdn.shopify.com/s/files/1/0433/3984/1695/files/call_of_duty_mobile_xbox_controller_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/4216/1319/files/celestial_sphere_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6774/files/alesis_sr_16_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0786/8060/files/monatotodipanazenananaruw.pdf
    • https://cdn.shopify.com/s/files/1/0440/5942/6968/files/essentials_of_business_communication_8th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/6656/3487/files/38137326737.pdf
    • https://cdn.shopify.com/s/files/1/0436/6699/7398/files/naming_ionic_compounds_practice_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/1541/1608/files/porobimulezo.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_off0000708c.bin
8a9bc03e5e5c14862cbfbd6e92945020b0fbdd85ce0987ea9e06d52d0afa1986		 pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 5556 bytes
font_01_sfnt_off00008353.bin
358377ebb62136cdf0e10bd456ad674cd57d6d7c578352c9c919829cf6d187a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8353 10004 bytes
font_02_sfnt_off0000a5a0.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A0 4324 bytes

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