Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc577c0728fc275d…

MALICIOUS

PDF

48.6 KB Created: 2020-08-10 21:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8973680336688acabd5c66bc65f73a4 SHA-1: b0d41e5c58d6fd8199c1cb9a08c0d99ad17b8c0a SHA-256: cc577c0728fc275d6920d35caa4e7ee178d312dff9d52460225a0e434287fd53
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to direct users to potentially harmful content. The presence of a visible LOLBin command execution instruction suggests the document is designed to execute commands or scripts, likely to download and execute a second-stage payload. The primary malicious IOC is the redirector URL.

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/pify?keyword=camille+paglia+livro+pdf
    • http://files.rafikitravel.com/uploads/1/3/1/4/131409090/femomozawazovox.pdf
    • http://files.unionvalleybaptist.net/uploads/1/3/2/6/132682528/pilidaruxofadopekupa.pdf
    • http://zanunali.lofgrenmusicstudio.com/uploads/1/3/0/8/130814411/2d8fa4a41d17.pdf
    • http://files.dojochattanooga.com/uploads/1/3/1/3/131383045/41939b27856bbe.pdf
    • http://files.goleakdetectives.com/uploads/1/3/1/3/131398605/mafexuzebonir.pdf
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/diwifadaridexorajibimudep.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/auxiliares_del_comercio_y_del_comerciante.pdf
    • https://cdn.shopify.com/s/files/1/0431/3425/5270/files/javubonarufubino.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/3475694130.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/marvin_gaye_mp3_downloads.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/44204478997.pdf
    • https://cdn.shopify.com/s/files/1/0434/3755/5864/files/sims_4_medium_curly_hair.pdf
    • https://cdn.shopify.com/s/files/1/0429/5072/1699/files/lejesiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/savop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdf
    • https://cdn.shopify.com/s/files/1/0430/6019/9573/files/fisokuwesevebusebotixije.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/bozaw.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_off00007408.bin
867ab49ba8e3e496f64d2e8003044095568c549ca0bbd961113bd06490e9f7d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7408 4868 bytes
font_01_sfnt_off0000849d.bin
6e8d4df2c817ede0919d496315b1598ade1acab5b5ff3abc1ffeae7f40b01ef3
pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 10100 bytes
font_02_sfnt_off0000a729.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA729 4324 bytes