PDF malware analysis — malicious · 58fd9ee8df3db3de

MALICIOUS

PDF

45.7 KB Created: 2020-07-29 15:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bc11331ae954b7e7f1c76f06bdaf3a65 SHA-1: 6c9c18f3d19de4e1ec90052fc77ec7085676b62b SHA-256: 58fd9ee8df3db3deebd1a8c13cbf68044290084b8c8757cbe00a013acaa2b4fe

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. The primary URL identified, https://ttraff.ru/pify?keyword=consumo+de+alcohol+en+jovenes+pdf, is flagged as malicious. The document body appears to be malformed or obfuscated, but the presence of numerous links, including one pointing to a known malicious redirector, strongly suggests a phishing or malware distribution attempt.

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.ru/pify?keyword=consumo+de+alcohol+en+jovenes+pdf
- http://files.ashtangaingroningen.com/uploads/1/3/1/4/131453021/tunafukubinetisavob.pdf
- http://files.yonah.sg/uploads/1/3/1/6/131606203/wibinanonosowez_xezeg_tufurizuxed.pdf
- http://files.gloriousseaglass.com/uploads/1/3/0/9/130969966/xokemolixilazuneluka.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/10568903514.pdf
- https://cdn.shopify.com/s/files/1/0432/7663/2214/files/taxegunubigupiwizumuga.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
- https://cdn.shopify.com/s/files/1/0430/1645/4305/files/31953080646.pdf
- https://cdn.shopify.com/s/files/1/0433/7680/3990/files/kujemo.pdf
- https://cdn.shopify.com/s/files/1/0433/0913/8075/files/vevipevitopujaxozawenu.pdf
- https://cdn.shopify.com/s/files/1/0437/1090/6518/files/48214438282.pdf
- https://cdn.shopify.com/s/files/1/0428/4186/6403/files/38944290496.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/figurakij.pdf
- https://cdn.shopify.com/s/files/1/0440/9432/4888/files/gepalowivisu.pdf
- https://cdn.shopify.com/s/files/1/0427/8432/5798/files/wokutiweruvafekujite.pdf
- https://cdn.shopify.com/s/files/1/0430/8199/0304/files/jexofitogusonakexolidi.pdf
- https://cdn.shopify.com/s/files/1/0431/7049/6672/files/zejefazizako.pdf
- https://cdn.shopify.com/s/files/1/0427/6623/7852/files/48147542265.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007262.bin` `d863406b694b0b6bedb0c4434a28997f483f2af6d9017223c5d5491a11b4b455`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7262	5212 bytes
`font_01_sfnt_off00008407.bin` `270fe0a74dad03ca2f1376b43a8fc19c3fcfe54a529226ba475235deb515afa7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8407	10968 bytes

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