Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac0ee45039713f7…

MALICIOUS

PDF

61.9 KB Created: 2020-08-19 00:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 906efc39395e334369195bde69091608 SHA-1: 065ae7a1a795de2a750a6ede33b1ab47ed3954a3 SHA-256: dac0ee45039713f7ce14cabd41a4bd2d93de77491d272484c23381910030f114
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a mass external PDF link farm. One of these links, https://ttraff.cc/pify?keyword=example+of+acknowledgement+for+project+report, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to project reports and the wkhtmltopdf tool, suggesting a lure to disguise the malicious link farm. The primary attack pattern involves leveraging these links for SEO manipulation or to redirect users to malicious content.

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.cc/pify?keyword=example+of+acknowledgement+for+project+report
    • http://files.lushgardenhotels.com/uploads/1/3/0/7/130775888/b38fb.pdf
    • http://mivokefo.fullcyclefarm.com/uploads/1/3/1/6/131606156/774c325.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/iso_to_img.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31492874922.pdf
    • https://cdn.shopify.com/s/files/1/0434/1694/4807/files/91072662879.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3205/files/79439849601.pdf
    • https://cdn.shopify.com/s/files/1/0440/4353/4486/files/pikopogunexubeli.pdf
    • https://cdn.shopify.com/s/files/1/0440/1076/6486/files/udit_agarwal_algorithms_design_and_analysis_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/mopar_atf_4_automatic_transmission_fluid.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/nepuwoxozeriwi.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/vizofelizegoregomol.pdf
    • https://cdn.shopify.com/s/files/1/0437/8358/5949/files/articulos_cientificos_de_nutricion_vegetal.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085ac.bin
45434c925951b995439909454247b11f37e96138453b81c3e77bc4da5f11ecb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85AC 3376 bytes
font_01_sfnt_off000091c3.bin
b7ed6cf5db5e797fc9424ce2bf052e5993dda984a55846c157fb1d0ff5b556bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91C3 5296 bytes
font_02_sfnt_off0000a3d9.bin
e17a13f23d101d0851292bd275babb9765616ca591652de90184cd2bcd84b499		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D9 10128 bytes
font_03_sfnt_off0000c6bd.bin
82056dbd961dfb06902bd92896d68141c9dfb980cb4a86826acd1996fb016f58		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6BD 16080 bytes
font_04_sfnt_off0000db66.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB66 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.