Malicious PDF — malware analysis report

Static analysis result for SHA-256 3154822781b68b6b…

MALICIOUS

PDF

35.0 KB Created: 2020-08-02 19:35:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a678ef85bb16d954d4aea685439d108 SHA-1: 47618265e2ce115b25de7fa41f88e0746ac586b6 SHA-256: 3154822781b68b6b173d0cf7209bee2a99f684f3ed7bb0d99259b7c4370d42f5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains references to '3gp bollywood movies' and the malicious URL, suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely to obscure the malicious redirector. The primary intent appears to be directing users to the malicious 'ttraff.com' URL.

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=3gp+bollywood+movies
    • http://files.studio135onlinestore.com/uploads/1/3/1/0/131070146/1872634.pdf
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdf
    • http://files.teach21too.us/uploads/1/3/0/7/130776131/zagogazu.pdf
    • http://files.millwoodchurchofchrist.com/uploads/1/3/0/7/130775448/kawilibowepixo_faxipobuxelelu_tagir_pewat.pdf
    • http://files.stephanierupp.org/uploads/1/3/2/6/132681767/walemo-supovewanodise.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3967/files/62572691147.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/70119274258.pdf
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/rufupesavosalizufipawix.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/11645668526.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/kotisuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9834/9471/files/nutamafupujofagozowuzubo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/veramudos.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/kojefusukesax.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/6166286736.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.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_off00004aa2.bin
f7a875949d38e0fa78d2eff0448e77c7cc191864ef83326c5e20f58e9cc3fc8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA2 5436 bytes
font_01_sfnt_off00005d2d.bin
0683e657adf44254df447caa7ca94a410fa84b26b94438faaffb33dbcf05f14d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2D 10076 bytes

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