Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c4031f60a4d459…

MALICIOUS

PDF

50.8 KB Created: 2020-08-09 03:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c3895a66fdb6d6e0e1ff080a92f650a SHA-1: 0e49a4a37f3016102a0e081665fa66c24c0e4197 SHA-256: f8c4031f60a4d459489979c713d069a998cca18e443eab3e0f02994af11abcb4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a lure for 'Bhagavad gita chapter 1 pdf english' and includes a high number of embedded links, many of which point to potentially malicious redirectors. The document also contains a heuristic indicating a remote-support tool lure, suggesting the user is being tricked into installing or running such software. The primary malicious link identified is https://ttraff.cc/pify?keyword=bhagavad+gita+chapter+1+pdf+english, which redirects to other resources.

Heuristics 4

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=bhagavad+gita+chapter+1+pdf+english
    • http://files.footballsnapbacks.com/uploads/1/3/1/4/131438439/2272731.pdf
    • http://files.bishopkemperschool.org/uploads/1/3/1/6/131606861/rotanogirejuzibu.pdf
    • http://files.raggz.org/uploads/1/3/1/8/131871852/9824045.pdf
    • http://files.craftyladycrushingcancer.com/uploads/1/3/1/4/131407111/6b3fdf40bc0.pdf
    • http://files.livingwellwholefoods.ca/uploads/1/3/1/6/131606859/4061288.pdf
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/vubisijiferawefosoxaxapaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/minediduzemawazuguleguliv.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/53804293888.pdf
    • https://cdn.shopify.com/s/files/1/0435/6341/7759/files/44158098191.pdf
    • https://cdn.shopify.com/s/files/1/0439/3120/5787/files/spring_boot_mvc_tutorial_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/86925073873.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38138836364.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/31261679139.pdf
    • https://cdn.shopify.com/s/files/1/0432/3393/5519/files/arduino_mini_schematic.pdf
    • https://cdn.shopify.com/s/files/1/0435/8638/8123/files/hornady_reloading_book.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_off00007076.bin
3f846d6dc223042f8630ff49234be74310841121614c6e576165b8191d49a227
pdf-font-stream PDF embedded font (sfnt) at offset 0x7076 5256 bytes
font_01_sfnt_off0000825a.bin
d590c20f93a07b5ab87f86d8417c7d6f6dc8b1e3ec2a9326c00ffa5949e10458
pdf-font-stream PDF embedded font (sfnt) at offset 0x825A 15388 bytes
font_02_sfnt_off0000af8c.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xAF8C 4324 bytes