Malicious PDF — malware analysis report

Static analysis result for SHA-256 da82473d35e0094e…

MALICIOUS

PDF

60.1 KB Created: 2020-08-04 19:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 590140677eafb154d382915f873c3cdf SHA-1: 6d45f0153d0dc77080ca07a658c364e0cd8584b2 SHA-256: da82473d35e0094e78373d473db4f3a58a8706eae3d9cdebf700c07508e25fd8
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wb?keyword=kailash%20satyarthi%20biography%20pdf%20download', is designed to trick users into downloading further malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, many of which are hosted on Shopify. The primary malicious URL is the most critical IOC.

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/wb?keyword=kailash%20satyarthi%20biography%20pdf%20download
    • http://files.senecaswissys.com/uploads/1/3/0/7/130738806/04abb.pdf
    • http://files.innovative-teacher-motivated-student-project.com/uploads/1/3/1/0/131070751/giduxaxezipa.pdf
    • http://wemop.norwoodcavies.com/uploads/1/3/0/7/130739674/ffb7e244870a7.pdf
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/zawolovukatulawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/saxovaxavebofonosize.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/nidujevabibiba.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/latijafodekowetuvituzuda.pdf
    • https://cdn.shopify.com/s/files/1/0429/0809/0535/files/52931229187.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/67270934567.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
    • https://cdn.shopify.com/s/files/1/0432/4933/6483/files/mopozobejitenovuzi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/70497557489.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_off00009bd1.bin
1b5e0887612fb5b8b51aaff6252e0be76fc53ec8b41fc19ab13d5781b39c4df3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD1 5608 bytes
font_01_sfnt_off0000aef4.bin
cd214f314ffb5ce57e4631829b1caf1664e181c19d24353801fe05ab2dc39913		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF4 10496 bytes
font_02_sfnt_off0000d31a.bin
7623ed09a5c6dcb724354272eec70a02ca536482c7b4de59f1b96c448d35fe87		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD31A 4332 bytes

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