Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5fadaab30816435…

MALICIOUS

PDF

41.6 KB Created: 2020-08-05 06:02:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 401319e66abb04716f8a62735d4c16c4 SHA-1: 41f7c867a50305de13b1e8c2f7faca88f025c9ed SHA-256: b5fadaab308164351cd670ffc9f1a3afbcf83a8e1164bf64f039fddd5eac2fe7
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to what appears to be a link farm hosted on cdn.shopify.com, with a primary redirector link to 'ttraff.cc'. This indicates a social engineering attempt to lure users to malicious sites. The document body, though heavily obfuscated, contains the text 'Supply chain management system pdf' and the redirector URL, reinforcing the lure. No scripts were extracted from this sample.

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.cc/pify?keyword=supply+chain+management+system+pdf
    • http://fenowu.jacquiconsults.com/uploads/1/3/1/4/131453177/wejosurirowolub_dagadu.pdf
    • http://files.jboboige.com/uploads/1/3/2/8/132815882/xofesokapazejur.pdf
    • http://files.casaesperanzalongmont.org/uploads/1/3/1/4/131453397/fe9eff50212a5.pdf
    • http://files.bswiatkiwskybowen.com/uploads/1/3/2/6/132695903/kogemagon-rimibasukiwavul-xebanegen-sikurokumez.pdf
    • http://files.eawim.com/uploads/1/3/1/3/131384468/b1482cea.pdf
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/tawejizivesomodix.pdf
    • https://cdn.shopify.com/s/files/1/0435/7164/2527/files/sekomakokaganudadatokuto.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/16020533137.pdf
    • https://cdn.shopify.com/s/files/1/0433/6851/3686/files/php_soap_client_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/79075632102.pdf
    • https://cdn.shopify.com/s/files/1/0438/4541/9173/files/jalubinegizixur.pdf
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/58127541981.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/45339628608.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.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_off00006286.bin
29d67a0f3a2aedaee979799e3ce42f9540efc954b7eda7eb3fae01d67e82f008		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6286 5676 bytes
font_01_sfnt_off000075c3.bin
e8ef3f157b7b8d13949e721b312cb98f977c371a506d27e83ca0afe0f4f1ef2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C3 10428 bytes

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