Malicious PDF — malware analysis report

Static analysis result for SHA-256 78ef681be277685c…

MALICIOUS

PDF

40.5 KB Created: 2020-09-02 09:54:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a38054fbc20db9fed752b800a8bb61a SHA-1: a11a228de6f55d91c720b6ca1e209d436fd4174f SHA-256: 78ef681be277685c163b3f7e197e46f7ffdaa5e7a31fcfb19f17e08faa5779fd
160 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as relevant content, which redirects to a known malicious domain. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. Additionally, the 'SE_LOLBIN_RUN_COMMAND' heuristic suggests that the document may contain instructions for executing commands, potentially to download further payloads. The presence of numerous external PDF links also indicates a link farm strategy, likely for SEO poisoning or traffic generation to malicious sites.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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/wix?keyword=best+bicep+curl+form
    • https://static.usrfiles.com/ugd/b8c837_7a24cee329544235af70991f2c28d87c.pdf
    • https://static.usrfiles.com/ugd/b8c837_6eab54b5549c4d19b017b33054ab9adc.pdf
    • https://static.usrfiles.com/ugd/b8c837_38708ea07c0845c2a202dda7ae14a2e3.pdf
    • https://cdn.shopify.com/s/files/1/0434/5449/6921/files/dogawinakusabawibipulupi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0783/4272/files/davude.pdf
    • https://static.usrfiles.com/ugd/86319b_c5eb268f35aa4f52a9f34b889967cd7b.pdf
    • https://static.usrfiles.com/ugd/9a242c_66bf2ba510fe4761b75cd20d4ff55b3e.pdf
    • https://static.usrfiles.com/ugd/121e37_05835c62015c493d8ea123a788fb4f91.pdf
    • https://static.usrfiles.com/ugd/3794ad_ed84190b164240649f5d1a24526411e1.pdf
    • https://static.usrfiles.com/ugd/f103bb_72ee6ca736554b2e8acc2bcd85f4be0e.pdf
    • https://static.usrfiles.com/ugd/0286dd_f9ea9d5fcd4a402bb5d941c658261bc3.pdf
    • https://static.usrfiles.com/ugd/b91566_da7a3bdeb9a0459492ece87360802d7e.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_off0000617a.bin
bb46643d6c4aeff39dd93e6daa213aebc7704cbeb3c66f0adfe9a8a241fd9d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x617A 5140 bytes
font_01_sfnt_off000072e5.bin
7e56ca49a3414a519e75f4cd0b9195a38530bc291e650c9ba9c8fdaaf916c254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E5 10204 bytes

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