Malicious PDF — malware analysis report

Static analysis result for SHA-256 97119dbd8d5382dd…

MALICIOUS

PDF

64.5 KB Created: 2020-09-13 05:02:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e72a10d65d4180b3d480a9a048d1bedc SHA-1: 061fe740461e77d1f0ec4a703b73248b353e7989 SHA-256: 97119dbd8d5382ddd10f6c478b4c45c30332819896e834fbe880f885aef1998f
162 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document also exhibits characteristics of a link farm, as indicated by PDF_SEO_LINK_FARM. The SE_REMOTE_SUPPORT_LURE heuristic suggests a pretext for user interaction, potentially to install further malware. The embedded URL is the primary indicator of malicious activity.

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.me/pify?keyword=black+desert+berserker+pve+build
    • https://static.usrfiles.com/ugd/ab5adf_e98797a33a9849aa8a10f1749f0f8d41.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fa031943cc14e4887eb4feb4f9d60d0.pdf
    • https://static.usrfiles.com/ugd/c345b0_c1d84f7ab80f4712b5e867f46fcfb217.pdf
    • https://static.usrfiles.com/ugd/828753_4ad063e7d37947e2aec9ebaa559d6c40.pdf
    • https://cdn.shopify.com/s/files/1/0434/6576/9110/files/nitodimatekebedujarizogaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/advantages_and_disadvantages_of_laser_technology.pdf
    • https://cdn.shopify.com/s/files/1/0447/7750/4925/files/bifapojemawafede.pdf
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/xegumavum.pdf
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/43566605968.pdf
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/polelufuwigivifakobotegaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/saterigexadugodawe.pdf
    • https://cdn.shopify.com/s/files/1/0465/0896/6046/files/fubsy_coding_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/6567/8755/files/sonik.pdf
    • https://cdn.shopify.com/s/files/1/0435/8982/8771/files/xijijo.pdf
    • https://static.usrfiles.com/ugd/8ebb60_0bd2dca8790b4d96a9c34d78c7a83a3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_15216b0e15844e7fbff76eea20b523a7.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_off0000bb0e.bin
702ba6f58facf9c03ea74931fff1c178c6efeecc60b309e16957f95a8dd28d6f
pdf-font-stream PDF embedded font (sfnt) at offset 0xBB0E 5380 bytes
font_01_sfnt_off0000cd67.bin
8a15660916d883a38a4ffb5bd4481e285e238a6c5900b8db8614937b544feead
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD67 12080 bytes