Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee9e38ccff8810c…

MALICIOUS

PDF

38.2 KB Created: 2020-07-28 03:30:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1b49a103766ad8dab2d31a63e0f7dd SHA-1: ddf3207233505d3f3e1695d3b0ea74e5b5bb2548 SHA-256: aee9e38ccff8810c151670dc6c1012cd3feceee36d4449a5859c2f638c2584ba
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is designed to lure users into downloading potentially malicious content, disguised as an APK file. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm tactics to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector is the malicious redirector.

Heuristics 3

  • 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.
  • 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=soundabout+pro+apk+uptodown
    • http://files.dementiafriendlyairports.com/uploads/1/3/0/7/130739227/5e92d8b0088638.pdf
    • http://files.acuartistry.com/uploads/1/3/0/7/130739251/7780634.pdf
    • http://files.musicwithmsb.com/uploads/1/3/1/0/131070692/timaxelema_faxele_wanudigigigeru_gujoguri.pdf
    • http://files.kiddyupranch.org/uploads/1/3/2/6/132681495/58127606.pdf
    • http://files.bindarrabi.com/uploads/1/3/1/8/131856195/rolepibinasopo_gipiporasetak_xilasikofijobul_sixobimaxuxopu.pdf
    • http://files.kiddyupranch.org/uploads/1/3/2/6/13268
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/33010968765.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0690/files/pusinotipetajemox.pdf
    • https://cdn.shopify.com/s/files/1/0438/8257/8088/files/vuwomilaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/vapiwosozejivoni.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/65756827075.pdf
    • https://cdn.shopify.com/s/files/1/0437/4446/0951/files/82637262136.pdf
    • https://cdn.shopify.com/s/files/1/0440/4979/3174/files/55772433656.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuzodatusowajukekef.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/zomad.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/79570992132.pdf
    • https://cdn.shopify.com/s/files/1/0438/4453/4429/files/solasopiposigir.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_off000059a4.bin
8e4d4413806f8c0147d3db3861d8167fe5675b191a2cb3ff1ff9b4057831fccf
pdf-font-stream PDF embedded font (sfnt) at offset 0x59A4 4860 bytes
font_01_sfnt_off00006a2a.bin
b6c3ac7bf7de81b16c4aa6d57b29d78cdf08e928302ec1a5313f2d0d5935aac7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 9892 bytes