Malicious PDF — malware analysis report

Static analysis result for SHA-256 b26e99f5698ef116…

MALICIOUS

PDF

46.4 KB Created: 2020-08-19 06:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51755ea7e6ac3a28d2f11a624d9a30fb SHA-1: 3e34ac40b9e3008df1a42b8f47168f6632ef19ff SHA-256: b26e99f5698ef116bf1fd75da41c7c38009cd0e92b4e5db7cad07da024fd2598
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=scanner+app+for+windows+10+free'. This URL is presented within the document body, suggesting a social engineering lure to trick users into downloading potentially malicious software. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility of the malicious link.

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=scanner+app+for+windows+10+free
    • http://files.scseniorplacementoptions.com/uploads/1/3/2/6/132682892/9573921.pdf
    • http://files.lucyscupcakes.com/uploads/1/3/1/0/131070859/5716261.pdf
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/5973286772.pdf
    • https://cdn.shopify.com/s/files/1/0431/3510/7233/files/difajasiluvoverokovoj.pdf
    • https://cdn.shopify.com/s/files/1/0436/7797/4678/files/3143351152.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5581/files/99198136028.pdf
    • https://cdn.shopify.com/s/files/1/0431/4382/3511/files/2255474738.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/cardiorespiratory_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/6190649852.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/vatatabigi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6719/files/85870792233.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/a_wrinkle_in_time_activities.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2225/files/79176350071.pdf
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/zifemiburomawurelufa.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9443/files/business_letter_template_samples.pdf
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/jefanenugurad.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_off000069fc.bin
6f0219860e2d31ca7a9451743e5298629a47c835b4d666c328b8136c69ce948b
pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 5212 bytes
font_01_sfnt_off00007bba.bin
d77d5f08371c6d5a748fa865b2ce8d35041ea4226d3bcf3d12b65211dd007d66
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBA 10196 bytes
font_02_sfnt_off00009eb5.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB5 4324 bytes