PDF malware analysis — malicious · fa4ea0ce808f7bea

MALICIOUS

PDF

47.3 KB Created: 2020-09-02 07:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f61ba267c912ed8391256146022810c4 SHA-1: b99a8d9a2a11bd32937eb37bd22a1f81c3d43ae6 SHA-256: fa4ea0ce808f7bea89e447caeb212e7fb3b31517ed18f236b863bbca506226e1

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF file contains a mass of external links, with one identified as a malicious redirector. The document body also contains text that instructs the user to copy and paste content into a command-line interface, likely to trick them into executing malicious commands. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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.
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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/wix?keyword=chrome+ubuntu+18.+04+terminal
- https://static.usrfiles.com/ugd/b8c837_714e8b6834044b54b35d2edd40928b03.pdf
- https://static.usrfiles.com/ugd/55e2c6_5794a462f46543c294d16ceffca32dc0.pdf
- https://static.usrfiles.com/ugd/c3548c_8ffccda1285c4d8d8e051f96c32b6b8d.pdf
- https://static.usrfiles.com/ugd/c1108c_4ee13c12c69d47e99b7b1db6f53325d2.pdf
- https://static.usrfiles.com/ugd/ca300b_66067147cb6b4281a17f023879125b1c.pdf
- https://cdn.shopify.com/s/files/1/0428/3236/3687/files/52878438253.pdf
- https://cdn.shopify.com/s/files/1/0438/6573/5328/files/18289333652.pdf
- https://cdn.shopify.com/s/files/1/0461/9835/8165/files/14640603345.pdf
- https://cdn.shopify.com/s/files/1/0431/9464/6689/files/algebra_2_online_textbook.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
- https://cdn.shopify.com/s/files/1/0435/6512/1699/files/finexefapijumotasiridiga.pdf
- https://cdn.shopify.com/s/files/1/0433/4164/3928/files/wowewob.pdf
- https://static.usrfiles.com/ugd/71fd01_71d29346d8b341a289e932700fa434ce.pdf
- https://static.usrfiles.com/ugd/f80014_71083432e4c5474c9e1005a0fe862a78.pdf
- https://static.usrfiles.com/ugd/834936_0505ed961f814b41bdc4ef1b58a42ee2.pdf
- https://static.usrfiles.com/ugd/ade4e6_2cbe4fbd7c5f49e39c82910525799479.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a24.bin` `9ace0590f898366154ddd3d8724d694388e585a65d599944a07b38faa1699120`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A24	5300 bytes
`font_01_sfnt_off00008c04.bin` `2aaf44b7ca92c5af9f957db3809bc14b9dd1786b5b4281f5b6cb3b24e392b56e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C04	10608 bytes

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