PDF malware analysis — malicious · f261f4ca5cc695b1

MALICIOUS

PDF

45.5 KB Created: 2020-08-20 02:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b802fdd54dd67296482c124e9167741d SHA-1: cdab04e605cbeaa3e4034eec9b7c74d74868604f SHA-256: f261f4ca5cc695b1b93bd870e4656a5f27fd03f6c6e1d0d29780f3f0b520bdeb

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as an examination form, aiming to trick users into visiting a malicious URL. It also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The presence of a call-to-action phrase further supports the lure.

Heuristics 4

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=ccs+university+examination+form+2019
- http://files.scentsaddictsblogspot.com/uploads/1/3/2/6/132681502/rawusibadenaf.pdf
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/xalepuvibi.pdf
- https://cdn.shopify.com/s/files/1/0435/4169/2570/files/34179055631.pdf
- https://cdn.shopify.com/s/files/1/0429/0304/4263/files/26977677036.pdf
- https://cdn.shopify.com/s/files/1/0429/2440/8991/files/kugijogovi.pdf
- https://cdn.shopify.com/s/files/1/0435/8258/7039/files/88652596236.pdf
- https://cdn.shopify.com/s/files/1/0434/2117/1879/files/nuduxutezozoforulugexa.pdf
- https://cdn.shopify.com/s/files/1/0433/9302/4149/files/cisco_asa_configuration_guide_9._4.pdf
- https://cdn.shopify.com/s/files/1/0433/8502/8775/files/chain_rule_word_problems.pdf
- https://cdn.shopify.com/s/files/1/0433/7106/9594/files/95134400515.pdf
- https://cdn.shopify.com/s/files/1/0435/9382/6463/files/74844827121.pdf
- https://cdn.shopify.com/s/files/1/0432/5844/5979/files/lukezinolovidibagabiwib.pdf
- https://cdn.shopify.com/s/files/1/0434/7943/3382/files/numawil.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90296180399.pdf
- https://cdn.shopify.com/s/files/1/0428/2862/8124/files/87290043592.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off000098e9.bin` `71c126be9b76b4b63a4839e733e083879b68441cbe1d36a0cc8f813127802801`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x98E9	4244 bytes
`font_00_sfnt_off00006348.bin` `2ac9404b6c89ddc9cb3747fc18c38f40dccfcda65016a706686b9023191eb5bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6348	5612 bytes
`font_01_sfnt_off0000764f.bin` `2ac1662c509ccb3ca326c0611df4e980cb71ff28dda38d57a3e9e536c9f4750d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x764F	10052 bytes

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