PDF malware analysis — malicious · fc22edae9bd217df

MALICIOUS

PDF

45.6 KB Created: 2020-08-31 08:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a28135f069ba03b72d0c84d9c559cb47 SHA-1: 97fd25f97e43c2c695df4d597466350847dd0210 SHA-256: fc22edae9bd217df43bb5514f81773025259c95e5f07771552c55b55806e1611

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a link farm with numerous external PDF links, many hosted on cdn.shopify.com, suggesting a coordinated effort to distribute malicious content. The primary malicious URL identified is https://ttraff.cc/wix?keyword=funny+discord+status+messages, which is likely used for phishing or malware delivery.

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=funny+discord+status+messages
- https://static.usrfiles.com/ugd/e2c250_c694e9aa1d8a4024a941a52bdca55984.pdf
- https://static.usrfiles.com/ugd/b8c837_2510d2264deb4f169ffe51de2ba550b7.pdf
- https://static.usrfiles.com/ugd/b8c837_ceb9385c38a94f67ae156edaa31c7a55.pdf
- https://static.usrfiles.com/ugd/b8c837_5109253166b049b291c4531faa663632.pdf
- https://static.usrfiles.com/ugd/8cbfce_b82451731a224b4589448e59800df01d.pdf
- https://cdn.shopify.com/s/files/1/0430/2834/9079/files/78927957191.pdf
- https://cdn.shopify.com/s/files/1/0432/0709/8529/files/aprendizajes_clave_preescolar_lenguaje_y_comunicacion.pdf
- https://cdn.shopify.com/s/files/1/0432/3265/7575/files/gekag.pdf
- https://cdn.shopify.com/s/files/1/0435/0712/2342/files/networking_all_in_one_for_dummies_pd.pdf
- https://cdn.shopify.com/s/files/1/0437/2951/8741/files/rustoleum_cabinet_transformations_light_colour_kit.pdf
- https://cdn.shopify.com/s/files/1/0428/3141/3414/files/ielts_general_essay_writing_samples_band_9.pdf
- https://cdn.shopify.com/s/files/1/0432/6300/0734/files/46708541798.pdf
- https://cdn.shopify.com/s/files/1/0463/0455/9261/files/manual_screen_printing_press.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/
- https://cdn.shopify.com/s/files/1/0435/0712/2342

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006600.bin` `8119efa064fc9fae7003b30d4297346f3e0f29cbf3fe172181e468dc09573e32`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6600	5164 bytes
`font_01_sfnt_off0000777a.bin` `92e3d5d62785354bcf59f77b9dda406beb4f500f5abaa456da5f389719bceb17`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x777A	10420 bytes
`font_02_sfnt_off00009b19.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B19	4324 bytes

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