PDF malware analysis — malicious · a169a7eff74cc7e5

MALICIOUS

PDF

45.0 KB Created: 2020-08-30 03:48:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2e2d793acf921c19ec8cf8b11805b60e SHA-1: f35e9742d781adbfd2e76472a56f4e8eb505f878 SHA-256: a169a7eff74cc7e5133b4a16c0bea980d803884d929f842445f5f096c9ea7635

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The sample is a PDF file that exhibits characteristics of a link farm, containing numerous external links. One of these links, https://ttraff.cc/wix?keyword=konika+minolta+dimage+z6, points to a known malicious redirector. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=konika+minolta+dimage+z6
- https://static.usrfiles.com/ugd/b8c837_baae777784bb4397a14ffd8809009b05.pdf
- https://static.usrfiles.com/ugd/7f16bd_c91c24660e9e4ec8b948aa386dd4899a.pdf
- https://static.usrfiles.com/ugd/b8c837_84f7b12aec2a4cd1b38058a6166f8b24.pdf
- https://static.usrfiles.com/ugd/9219f8_cc603a09d0fa4f0ab0f774789a620bc7.pdf
- https://cdn.shopify.com/s/files/1/0429/5104/9370/files/11991264254.pdf
- https://cdn.shopify.com/s/files/1/0431/7636/2150/files/cdc_flu_shot_2018_information_sheet.pdf
- https://cdn.shopify.com/s/files/1/0428/0903/2863/files/32501740129.pdf
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/19757345827.pdf
- https://static.usrfiles.com/ugd/3649d2_23635f47baf640c9a32b4bbf15498faa.pdf
- https://static.usrfiles.com/ugd/078c79_019aef32f0b948b0b3188a44f8196ebf.pdf
- https://static.usrfiles.com/ugd/ed64d2_df5430e68d8f4005954357e62c3515f4.pdf
- https://cdn.shopify.com/s/files/1/0429/8909/3018/files/demuwafufoxe.pdf
- https://cdn.shopify.com/s/files/1/0438/1822/1728/files/58756255368.pdf
- https://cdn.shopify.com/s/files/1/0432/5684/0354/files/69246841924.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_off000071ed.bin` `9985d0e84a01fdb67370f55d69fe878cc7aa17a40fe60b802f080ee3c150e803`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71ED	5108 bytes
`font_01_sfnt_off0000833d.bin` `87a2ef31bbcf47624d1a15a70db191ec5c7e8c5a9f436ccca75e0cfaa097d563`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x833D	10404 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.