PDF malware analysis — malicious · 4be92619db564c7d

MALICIOUS

PDF

45.3 KB Created: 2020-08-03 11:30:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 859e7547f5212ebad5de6fdd912cbc3b SHA-1: 67c8e63ba49251283ff71fd2bc4947382646229e SHA-256: 4be92619db564c7d61c2cb0c95e027de4cac7bd5218becb8cbbc452ad1ec8bd2

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=calendario+lunar+2020+colombia+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, and the document body is largely unreadable binary data, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=calendario+lunar+2020+colombia+pdf
- http://files.gleimlight.com/uploads/1/3/1/6/131637553/wavogusekuwe.pdf
- http://files.kittsonskitchen.com/uploads/1/3/1/8/131856232/a37fa16fe42.pdf
- http://files.schematherapycanberra.com.au/uploads/1/3/2/7/132740408/3938424.pdf
- http://files.adamflath.com/uploads/1/3/0/8/130814432/2347615.pdf
- http://files.engineersinmedicine.com/uploads/1/3/1/1/131164424/zimotuwumonos.pdf
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/31254018949.pdf
- https://cdn.shopify.com/s/files/1/0438/9791/3512/files/kusupunenofifexomo.pdf
- https://cdn.shopify.com/s/files/1/0428/2499/0887/files/tadawajab.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25346701784.pdf
- https://cdn.shopify.com/s/files/1/0436/1791/0946/files/reverse_a_singly_linked_list.pdf
- https://cdn.shopify.com/s/files/1/0432/5851/1510/files/44596227424.pdf
- https://cdn.shopify.com/s/files/1/0430/1396/3929/files/fijezejapuzure.pdf
- https://cdn.shopify.com/s/files/1/0427/9386/1279/files/23910857414.pdf
- https://cdn.shopify.com/s/files/1/0431/5630/8123/files/foxit_advanced_editor.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
`font_00_sfnt_off00005cef.bin` `15489ed014bafaca991f460bb098d586f5011d5ff0b5f21318953ac281383bca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CEF	5444 bytes
`font_01_sfnt_off00006f4d.bin` `fe1ab68ba0e400dd85d25089acf5ac01fe23713030f4f2af4b915d63b785ea65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F4D	10612 bytes
`font_02_sfnt_off000092cc.bin` `46cab8332bfc4ecd06f2d76e10befdf00c75b90bc1fe9448badee8ab89e4e2c7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92CC	16508 bytes

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