PDF malware analysis — malicious · bfbc665b7b11c4b3

MALICIOUS

PDF

38.4 KB Created: 2020-07-29 03:56:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 490b24674c2d19b079929349a185b6b9 SHA-1: a350cca8b5845081b2f4f856acbb99b13fe503a5 SHA-256: bfbc665b7b11c4b3e10182aea5ef540723e09244f6ed19c70afb75506e8d97c7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify but point to potentially malicious content. The document body, though heavily obfuscated, suggests a lure related to a 'worksheet', likely to trick users into clicking the malicious link. No scripts were extracted, but the presence of multiple suspicious URLs indicates a phishing or redirection attempt.

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=the+progressive+era+muckrakers+worksheet
- http://files.decadentaffairsco.com/uploads/1/3/1/4/131407492/20853.pdf
- http://files.alacc-capitalconnection.com/uploads/1/3/1/8/131871786/619327.pdf
- http://files.ateliernanou.com/uploads/1/3/1/4/131407278/650760a2.pdf
- http://files.dondealmuerzo.com/uploads/1/3/2/6/132681501/c4df55778be.pdf
- https://cdn.shopify.com/s/files/1/0431/4375/7985/files/74586104843.pdf
- https://cdn.shopify.com/s/files/1/0429/6101/0842/files/33986021850.pdf
- https://cdn.shopify.com/s/files/1/0431/0954/8188/files/tolefeninikovebedape.pdf
- https://cdn.shopify.com/s/files/1/0430/3945/7431/files/22925424518.pdf
- https://cdn.shopify.com/s/files/1/0433/9236/8798/files/14436109302.pdf
- https://cdn.shopify.com/s/files/1/0435/7701/6483/files/8159848875.pdf
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/61600736393.pdf
- https://cdn.shopify.com/s/files/1/0430/1278/4277/files/nexevave.pdf
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/vakewizezobebava.pdf
- https://cdn.shopify.com/s/files/1/0430/4509/3533/files/salakiwuxalujawogeb.pdf
- https://cdn.shopify.com/s/files/1/0430/0881/9349/files/56923303280.pdf
- https://cdn.shopify.com/s/files/1/0429/8424/3351/files/12037273625.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
- https://cdn.shopify.com/s/files/1/0429/4692/0615/files/zabedamasag.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/
- https://cdn.shopify.com/s/files/1/0433/9236/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005942.bin` `94d8ed61e5eadc1562d590db1d560e991d6ea583d759e2dbe8e4b0f85e6a50a6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5942	5256 bytes
`font_01_sfnt_off00006b46.bin` `ad2180f2aacc6c2356c3eaf63851560edce9970b4dfbfe4c3959baa0872d1bab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B46	9572 bytes

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