Malicious PDF — malware analysis report

Static analysis result for SHA-256 34bb0bd824e82cce…

MALICIOUS

PDF

52.0 KB Created: 2020-08-02 15:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe5eab0abeb169db343980f3794b7922 SHA-1: b0e484027f9afe240d55d8ab22f3a63543e3ff57 SHA-256: 34bb0bd824e82cce6e73b00e18468b41f09ca9d2475e9f769a95eb5023803bd0
128 Risk Score

Malware Insights

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

The PDF contains a clear call-to-action disguised as a download for a 'Csgo auto clicker'. It embeds multiple links, with one pointing to a redirector URL (https://ttraff.com/pify?keyword=csgo+auto+clicker) known to host malicious content. The presence of a link farm heuristic further suggests a malicious intent to distribute harmful content. No scripts were extracted, limiting the analysis of the payload.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=csgo+auto+clicker
    • http://files.rombi.org/uploads/1/3/0/8/130814535/jesinaduku-gozufan.pdf
    • http://files.gtqueens.com/uploads/1/3/1/4/131407226/2415900.pdf
    • http://files.awanatuhealing.co.za/uploads/1/3/1/3/131379732/5644712.pdf
    • http://files.rozannaartist.co.uk/uploads/1/3/1/0/131070702/7971829.pdf
    • https://cdn.shopify.com/s/files/1/0429/8784/7843/files/lumiwiligene.pdf
    • https://cdn.shopify.com/s/files/1/0438/4070/0578/files/bagevuparebidup.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/video_file_compressor.pdf
    • https://cdn.shopify.com/s/files/1/0432/3183/8368/files/60341512547.pdf
    • https://cdn.shopify.com/s/files/1/0429/1539/7788/files/59116998048.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6257/files/75866254966.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/lupidezupejatowuvivugadog.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/12058869112.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9236/files/15240850411.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/litajokeguxomimis.pdf
    • https://cdn.shopify.com/s/files/1/0436/6080/4249/files/ramuwifoxivukuremapiked.pdf
    • https://cdn.shopify.com/s/files/1/0432/3039/6574/files/lizonetidodetujedupazabev.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/loxiworupetasujawokatow.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071d2.bin
4f69d0f389145631ce0dc7dfd7658ced24d5014b9b5823900000299c6fc4d82e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D2 4284 bytes
font_01_sfnt_off000080db.bin
33b7b9047a9e759f1044d7115e271d4e36a1e0d470302556a5ba1b16129b470f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80DB 4828 bytes
font_02_sfnt_off00009163.bin
9be6992b34913fc4b185159eeec1ccaa77a2f3306e82fc3df5e048bdbbc1217a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9163 10192 bytes
font_03_sfnt_off0000b42f.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB42F 4324 bytes

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