Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d32ccf8df3016a…

MALICIOUS

PDF

50.8 KB Created: 2020-07-30 20:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b5c46da86b9cb5f7ff1c55771ba6325 SHA-1: 433f3d8bcbc8f56083866217907a3f320f6e5b51 SHA-256: e0d32ccf8df3016a6a511c747e6cf286558e0c87eb6d6f3652e8aeb1cea771a7
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'meeting agenda examples'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content. The file also contains a large number of links to Shopify domains, many of which are benign, but one is flagged as a 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.cc/pify?keyword=how+to+write+an+agenda+for+a+meeting+examples+pdf
    • http://files.macombcountymga.com/uploads/1/3/0/7/130776451/6ae6af4.pdf
    • http://files.valsbrewtreats.com/uploads/1/3/2/7/132740275/6d57a.pdf
    • http://files.fumcmon.org/uploads/1/3/1/4/131453610/vubaxamugebanoxap.pdf
    • http://files.fumcmon.org/uploads/1/3/1/4/131453610/vubaxamug
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/50930407046.pdf
    • https://cdn.shopify.com/s/files/1/0428/5543/2348/files/lununixazamomuriba.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8537/files/zitek.pdf
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/87122329662.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/zepeberopesan.pdf
    • https://cdn.shopify.com/s/files/1/0431/0437/0842/files/28400076239.pdf
    • https://cdn.shopify.com/s/files/1/0432/3603/2680/files/jedaxemujubufuwip.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/22754037663.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53978683100.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/sekilav.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/40759127524.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/feregixinopezuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/46318554335.pdf
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/23348387143.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_off0000880d.bin
2fded3f3f1ab31d9a1c266e571bdfa013d5ec789689a8e8dfe790757a570dae8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x880D 5268 bytes
font_01_sfnt_off000099f5.bin
cb7847a9c5f0f7ee3484f5dcfc6d107468ca564bd00b02b2c0acd45232494702		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99F5 10492 bytes

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