PDF malware analysis — malicious · 22149d348a1f5f8e

MALICIOUS

PDF

59.0 KB Created: 2020-08-22 08:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4921b621b0b917b1286367de770efefe SHA-1: 320fec9bffad9dc970b8a17c8fa3c0838b5dedd8 SHA-256: 22149d348a1f5f8ea73fc3442b5f6e6e97b911f06475c61907292b4860bd94da

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=reportagem+dftv+2+edi%25C3%25A7%25C3%25A3o+hoje'. The document body, though heavily obfuscated, contains this URL and appears to be a lure for a news report. The file also contains a PDF link farm heuristic, indicating it's part of a larger SEO poisoning effort. The primary malicious IOC is the redirector URL.

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.com/pify?keyword=reportagem+dftv+2+edi%25C3%25A7%25C3%25A3o+hoje
- http://files.funkbusterbaits.com/uploads/1/3/2/7/132740949/rulamozemurusu.pdf
- https://cdn.shopify.com/s/files/1/0428/1224/4134/files/1761301318.pdf
- https://cdn.shopify.com/s/files/1/0431/4444/6118/files/taxunokijufiputigi.pdf
- https://cdn.shopify.com/s/files/1/0462/9174/6977/files/63238024341.pdf
- https://cdn.shopify.com/s/files/1/0434/5203/9328/files/7800381941.pdf
- https://cdn.shopify.com/s/files/1/0438/8909/8907/files/fibebosu.pdf
- https://cdn.shopify.com/s/files/1/0436/4346/9974/files/rixadopadigogagi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdf
- https://cdn.shopify.com/s/files/1/0434/7727/0678/files/tarexukiv.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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b52.bin` `5c96381b2956ba85bdc606e02b4bc67750563a6a571ffb0d67253edb336a5a64`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B52	6476 bytes
`font_01_sfnt_off00005b27.bin` `4b64d5e65ca3d38908727627ab69d513cc2281093e606a1283bed194495d10c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B27	3348 bytes
`font_02_sfnt_off0000669a.bin` `bf8ebb685f7a497bd3b4c2940a46451dc401e4614fa62769aef28756d9af0502`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x669A	6020 bytes
`font_03_sfnt_off00007a79.bin` `feab166b6d66737a01ff3890abc06ef223020ad9662d10b3ac27da85198b8d63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A79	12468 bytes
`font_04_sfnt_off00009f02.bin` `70887d8a705bca6fdea8f19cb26507004f2e8c4a5d5e15d35b1e0e432d6ba5f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9F02	11152 bytes
`font_05_sfnt_off0000c534.bin` `e55a823916cc0825c0a35764fb677e2f4df6d4af7e3d961e35c985c356eeb250`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC534	16620 bytes

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