Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2a7dc1927ae9ef…

MALICIOUS

PDF

53.2 KB Created: 2020-08-29 12:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d76db861bb52505b8341e9b63195b4a SHA-1: f840b9d75ad5d9b8b574232c706b20859bd77b3c SHA-256: fa2a7dc1927ae9ef0166ce99682d43ececd84aee471ea5cd98c825a16b454e8d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=pubg+a+la+manette'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. Additionally, a PDF link farm heuristic suggests the document is part of a larger effort to distribute malicious links. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for this assessment.

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/wix?keyword=pubg+a+la+manette
    • https://static.usrfiles.com/ugd/b8c837_79255ba27a094f91bebf1333f8f4f0af.pdf
    • https://static.usrfiles.com/ugd/b8c837_559675a73b904d7ba612f4eb3e05f2b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_4d0dcc6942254291ad08b1dd63b43c85.pdf
    • https://static.usrfiles.com/ugd/b8c837_b78163a9bbf3495c8c4378ef908fa1d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f0565c432bf480c94457283e84705f7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ee74ab9be734382adc4f1d9a70bd5dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_563ef579b87e4ea78e66c61171fa8f0f.pdf
    • https://static.usrfiles.com/ugd/b8c837_196c6694c5074fdab78e83b1d9110e4f.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd66ccfa2f12473cb82d7843285f405b.pdf
    • https://static.usrfiles.com/ugd/b8c837_7be0594f904c4eb49244000d054ad660.pdf
    • https://static.usrfiles.com/ugd/12dc78_5324f7285aa4469c930e515843a8074b.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc25af426ad04839a74d89c065067bb3.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_off00007dba.bin
142b5707120ecffa34af52c5584f608f550c8ecd801966b7bebb94ca32359cfd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA 4872 bytes
font_01_sfnt_off00008e3d.bin
007f47da043e1167c2ecfe3869c7badb8d5204146f9c928480842b052fcdc2d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E3D 10684 bytes
font_02_sfnt_off0000b2cc.bin
96f859c7fc10f93bd22fe22fc286a33aa638738a60037dcab3461568ca3f3834
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2CC 16080 bytes