Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2483699ef254b43…

MALICIOUS

PDF

45.3 KB Created: 2020-08-31 16:20:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dcb8ec6aaeda493f8f98373dd77c6c2 SHA-1: c11d586838a8988359f88ab5eec97a48ecb19a09 SHA-256: f2483699ef254b43194e72360b0a17152d164c8bd691b7a3f59adc3e47381102
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One of these links, https://ttraff.cc/pify?keyword=catriona+gray+answer+and+question, is identified as a malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. The presence of numerous links and the malicious redirector indicate a coordinated effort to drive traffic to potentially harmful sites.

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=catriona+gray+answer+and+question
    • https://static.usrfiles.com/ugd/af0aa9_011f2f60651f45dfa2cc8f2f074b083e.pdf
    • https://static.usrfiles.com/ugd/0df15e_519ce6fce14a4d15812ee3878bb44ffd.pdf
    • https://static.usrfiles.com/ugd/23e9be_f56439f218344e8a9761b05e9dc77f86.pdf
    • https://static.usrfiles.com/ugd/8b2c09_6620014c0b8b4bccb142a710099c1e55.pdf
    • https://static.usrfiles.com/ugd/269bb8_d55cb8176c724de58512848400e411be.pdf
    • https://static.usrfiles.com/ugd/409ca8_a932d1f541dc4bd0940a855c38dc4e64.pdf
    • https://static.usrfiles.com/ugd/628a76_a4eb1f6c6d2c447bab756367700cbd4c.pdf
    • https://static.usrfiles.com/ugd/b8c837_535d5e5d905d4592bf1b433bcf1437bc.pdf
    • https://cdn.shopify.com/s/files/1/0447/3618/4474/files/gentleman_s_guide_original_cast.pdf
    • https://cdn.shopify.com/s/files/1/0463/0488/6941/files/song_of_the_deep_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0220/files/tixesedukezapovo.pdf
    • https://static.usrfiles.com/ugd/3b7182_85fdb3232c004be8a38fb1c7dd071686.pdf
    • https://static.usrfiles.com/ugd/4dd980_1b3c3c7c04da40e39978495de95409f9.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007320.bin
b5d1fe385adf28a3deafa561711476f7d3ace43f328774d804b2ddde9546b500
pdf-font-stream PDF embedded font (sfnt) at offset 0x7320 5184 bytes
font_01_sfnt_off000084df.bin
cc525d91ef21e4f61dbc326d8a64b2644e927a9b99ee509a08cb6c6c6c45c043
pdf-font-stream PDF embedded font (sfnt) at offset 0x84DF 10408 bytes