PDF malware analysis — malicious · e389ef82985cb935

MALICIOUS

PDF

50.6 KB Created: 2020-09-01 02:59:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a69d5fcfe664375dd8bd4f3afb7d13a7 SHA-1: 9b8d99e9f869aa5f468fd371b11f1049cde3f675 SHA-256: e389ef82985cb935f302b419d2d950704163f1d0062b7c8ffae7b23ab04da595

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=free++font+open+sans
- https://cdn.shopify.com/s/files/1/0436/1450/3075/files/81891487828.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55497749658.pdf
- https://cdn.shopify.com/s/files/1/0431/0938/4345/files/rectification_of_errors_journal_entries.pdf
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/audacity_mac_os_x.pdf
- https://cdn.shopify.com/s/files/1/0430/7720/6167/files/fuvofagozesuxupaja.pdf
- https://cdn.shopify.com/s/files/1/0428/7977/8979/files/60386156675.pdf
- https://cdn.shopify.com/s/files/1/0437/9649/6544/files/43978877287.pdf
- https://cdn.shopify.com/s/files/1/0438/4453/4429/files/sixipap.pdf
- https://cdn.shopify.com/s/files/1/0435/9726/7112/files/gunuregefunetedojed.pdf
- https://static.usrfiles.com/ugd/b8c837_47cf9e6eac244b3f9003590006603f2f.pdf
- https://static.usrfiles.com/ugd/4b68be_50fc42d47b48424e910c600580d5e473.pdf
- https://static.usrfiles.com/ugd/4479ed_c09eafb2ac3e4dab91453abfaa3cfab3.pdf
- https://static.usrfiles.com/ugd/b8c837_efc2a34ab57543da9ec749783f2374be.pdf
- https://static.usrfiles.com/ugd/be19e1_d0e991cfc3aa4159898c8193d2724ec4.pdf
- https://cdn.shopify.com/s/files/1/0431/3474/6790/files/photoshop_cs6_camera_raw_filter.pdf
- https://cdn.shopify.com/s/files/1/0433/7047/9768/files/tebetobonuvivi.pdf
- https://cdn.shopify.com/s/files/1/0431/6839/9524/files/lafotumexi.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_off00007b13.bin` `565293081e100827cab7a45633c8a629b357597df917c792563b1a1a6197d833`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B13	4560 bytes
`font_01_sfnt_off00008a8e.bin` `1bec1df92354d3e2532b2433a7e029f660b742198f3e30ad1825e5565b6b93eb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A8E	10784 bytes
`font_02_sfnt_off0000aef7.bin` `ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEF7	4324 bytes

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