Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a42293ac9e8abe…

MALICIOUS

PDF

36.2 KB Created: 2020-08-30 07:49:06 +03:00
MD5: fe6dd33c2f405157a855d413a3fc0a83 SHA-1: 22290b864722253bfa088831d73883ff9dc1c98b SHA-256: c7a42293ac9e8abe0fbb3b0d74d9ab3241e6f2f9f3a29517c4bbcce151708c2f
160 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to a malicious redirector and a PDF link farm, indicating a social engineering attempt to trick users into visiting potentially harmful sites. The presence of a visible LOLBin command execution instruction suggests the document may also attempt to execute further malicious code. The primary lure appears to be a link presented as 'Libro de ciencias sociales 6 editori'.

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.com/wix?keyword=libro+de+ciencias+sociales+6+editori
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/scripting_tools_for_windows_powershell_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/45230344713.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdf
    • https://cdn.shopify.com/s/files/1/0431/3962/9205/files/cinema_4d_text_animation_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/2658/7549/files/70133206517.pdf
    • https://cdn.shopify.com/s/files/1/0434/7677/9174/files/72516755528.pdf
    • https://cdn.shopify.com/s/files/1/0435/9903/6573/files/lean_bulk_diet_plan.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/gumimoto.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/75085903334.pdf
    • https://static.usrfiles.com/ugd/ace02d_e36e68a69b6a41c9b6c39e9e77dfa879.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7225017309e44729c869f52e120b987.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6c97b325978480dbf153dd2a6de8c26.pdf
    • https://cdn.shopify.com/s/files/1/0432/3806/4296/files/control_de_bemisia_tabaci.pdf
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/12679306604.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_off00004c6f.bin
34aca017d6ed02794b9975c4ae0fe0e7c4c73e14332c98993c1e6e61dcd06bf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C6F 5168 bytes
font_01_sfnt_off00005e05.bin
15b12e31ccef6ddf87151931e9873594a88af3eb80c8123a6aaad746ae10c025
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E05 11216 bytes