Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d1aff7906d1aee…

MALICIOUS

PDF

46.3 KB Created: 2020-08-16 21:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ee8f1e3dac50b0090b83cc4543baf78 SHA-1: 58940c7d54196e8e42c17848128b97a09547240f SHA-256: f2d1aff7906d1aeec36eef89c553cf29b7ef9634b7f938459b52a2aa1a8f72c0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, also contains the malicious URL. This suggests a phishing or malware distribution attempt leveraging SEO poisoning tactics.

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.ru/pify?keyword=crazy+baldheads+bob+marley
    • http://tasodiwoz.lawlersdrivertraining.com/uploads/1/3/0/7/130775045/9464431.pdf
    • https://cdn.shopify.com/s/files/1/0437/5399/6446/files/effects_of_cyberbullying_on_academic_performance.pdf
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/87703736633.pdf
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/pidujap.pdf
    • https://cdn.shopify.com/s/files/1/0435/7763/9075/files/gabujotudokokugunate.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/4030269122.pdf
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/crystal_report_8_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/fopepuwatiguluj.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/63883623513.pdf
    • https://cdn.shopify.com/s/files/1/0431/3382/9277/files/69273624385.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/dafazuso.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/ribakote.pdf
    • https://cdn.shopify.com/s/files/1/0434/2182/7222/files/milliseconds_to_minutes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/xijofunodofowas.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_off0000543d.bin
0aed495a8a8a9a063bde5b13f2e2360eb1edebc4d0698ee993076b3a868e5f77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543D 5624 bytes
font_01_sfnt_off0000679b.bin
c7795aad5383a99418ee60cb7a10210af02b616bffcc453f135604548b91a2f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679B 4932 bytes
font_02_sfnt_off0000786b.bin
a30e1288a6eb953519d88996fc9591a80092540b7c048e59f20f28599c4eb43b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786B 11180 bytes
font_03_sfnt_off00009c6d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C6D 4324 bytes

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