PDF malware analysis — malicious · 4cbcbd27f104cfe8

MALICIOUS

PDF

44.2 KB Created: 2020-09-01 00:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8d95023919221d8b2b37dee09f075121 SHA-1: 805af289156771a5863fc699aabda662b5edd6d6 SHA-256: 4cbcbd27f104cfe8f4779d9870909ea7cdcec0fd223c870b4e673832a804fa27

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to deliver malware or phishing content. The document body, though heavily obfuscated, contains text referencing 'Axure rp 8 with crack' and the malicious URL, indicating a lure for software piracy. The presence of numerous external PDF links, many hosted on static.usrfiles.com, suggests a link farm or SEO poisoning tactic to increase visibility of the malicious content.

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.ru/pify?keyword=axure+rp+8++with+crack
- https://static.usrfiles.com/ugd/1be480_553c8e69efb34fee85b983fe3196c5e1.pdf
- https://static.usrfiles.com/ugd/b8c837_8074e4e6fb15479d8a3e200b9c09d4bb.pdf
- https://static.usrfiles.com/ugd/122077_02b2c384c5fb4b3692a6355d16fa5aae.pdf
- https://static.usrfiles.com/ugd/0049ca_8df5e5d50b8e43529ce07af320869412.pdf
- https://static.usrfiles.com/ugd/8ab72e_d0e82a7718e44476a63cb92da18b85eb.pdf
- https://static.usrfiles.com/ugd/b8c837_f5f08c09417a4dd1b0fbff13dde06744.pdf
- https://static.usrfiles.com/ugd/d7ba0f_ed5b17451cee4e59b006420a573529a1.pdf
- https://static.usrfiles.com/ugd/d43733_e40ddce353e447a5a32865edc610afaa.pdf
- https://static.usrfiles.com/ugd/45e30f_adc945f1b64f41b5bee5f6170d42a162.pdf
- https://static.usrfiles.com/ugd/b8c837_a8ad3ecf65584627bc5e3562a191cc8c.pdf
- https://static.usrfiles.com/ugd/b8c837_de4e80c054064e80a40c774c694587f4.pdf
- https://cdn.shopify.com/s/files/1/0461/7905/7817/files/jemifewajasurisiliti.pdf
- https://cdn.shopify.com/s/files/1/0429/6127/2983/files/kodinizutuvebokuranopuv.pdf
- https://cdn.shopify.com/s/files/1/0440/8524/8165/files/romanesque_architecture_book.pdf
- https://cdn.shopify.com/s/files/1/0432/3429/5966/files/gitapukusidavipaleri.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_off00006185.bin` `91ca6c1312c0c7d840bd72b08c42c6964e5057671d2f7f4eaa914f8f015a7888`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6185	4884 bytes
`font_01_sfnt_off00007250.bin` `eaa164226a680caaa1d2a8e025a50f2282a477d63d81474be4d59c583b15e194`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7250	10360 bytes
`font_02_sfnt_off000095c9.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95C9	4324 bytes

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