PDF malware analysis — malicious · 2856a8386967f3a4

MALICIOUS

PDF

50.4 KB Created: 2020-08-31 05:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 98c01f27192d97d79b485d933b68f45f SHA-1: d9e33a1a0b73f318575983eb37e79e5186ffcee1 SHA-256: 2856a8386967f3a427404926197a50159efdd26417e2f99b50c03d4a10aff52c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised with a keyword related to the game Warframe. This suggests a phishing or scam attempt to lure users to malicious content. The PDF also contains a large number of external links, many of which point to benign content, but the primary malicious link is the most concerning IOC. No scripts were extracted from this sample.

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=warframe+weapon+ingredients
- https://static.usrfiles.com/ugd/b8c837_99c046e40dcc4af7983cd09e6ce7d7d5.pdf
- https://static.usrfiles.com/ugd/4cf28d_91bca289dbc64063a0b21aca368bed44.pdf
- https://static.usrfiles.com/ugd/5bb01c_5975e8a292ed437fafc6484cd5dcf53d.pdf
- https://static.usrfiles.com/ugd/0a0016_8f44cfc49f8c4fb2ae1474cda3eb9387.pdf
- https://static.usrfiles.com/ugd/defcb2_32f0cc0410ec4c4f89e8a3d53a0ea6cb.pdf
- https://static.usrfiles.com/ugd/f55bec_d152f04e8d6b4a3aa44bce5b9107b88b.pdf
- https://static.usrfiles.com/ugd/b8c837_275931a6218d46978e50a8921bcc6fe1.pdf
- https://static.usrfiles.com/ugd/b8c837_5b43aa52fe5544a390e22e3d4a170f3b.pdf
- https://static.usrfiles.com/ugd/b8c837_f233452c5c7f4ad3997400f5b8f625a5.pdf
- https://static.usrfiles.com/ugd/cafc24_02d635edc38e4bd997737b52f9860fba.pdf
- https://static.usrfiles.com/ugd/d5cf39_80a6d89b9fa04097828cf2bc4941a6b5.pdf
- https://static.usrfiles.com/ugd/48d9a1_aed732f77ae049ce992cb4b7d8ab9148.pdf
- https://static.usrfiles.com/ugd/429b25_d1b44780b8c1420fb867f650a2da1d8f.pdf
- https://static.usrfiles.com/ugd/b8c837_8d131643174e403598696e0872934691.pdf
- https://static.usrfiles.com/ugd/b8c837_61f9a956a804494d9c3f16d03c9cedbb.pdf
- https://static.usrfiles.com/ugd/b8c837_0252aac7b25f41178d4ae09497bf6393.pdf
- https://static.usrfiles.com/ugd/6cf392_5ddae702e28a4e3882de0fa84c2f73f3.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_off000067c8.bin` `3b6fd54ade763ed3f24cbba9fd3f6ee7124eeb45bf86cb5947a4562d0fe5caa2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67C8	5432 bytes
`font_01_sfnt_off00007a42.bin` `f531b4155818364ef4a088ed0dd27d548027d5f037f0ada69f799000b94fb6cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A42	11724 bytes
`font_02_sfnt_off00009f8b.bin` `b666b94ab3054a80e377a141d35d7530cc05ea895ac1e4dcf42ae39ad0706483`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9F8B	18372 bytes

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