PDF malware analysis — malicious · d93e41bc86bd54e7

MALICIOUS

PDF

49.0 KB Created: 2020-08-31 02:29:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c9174cb600a896b7aefce94d175a31a1 SHA-1: 2fb9cc1d636a0030840f2c1251c61f5e9457429e SHA-256: d93e41bc86bd54e7f13e4352ab467c6f1a9de01a1a711cc58550880101ddbb44

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to a critical heuristic identifying it as a link farm pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=ph+de+los+alimentos+lacteos', which is a primary indicator of malicious intent. The presence of numerous other PDF links further supports the link farm classification.

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.club/wix?keyword=ph+de+los+alimentos+lacteos
- https://static.usrfiles.com/ugd/0c4177_beacda301c724c9fa13f15407c4b4b7d.pdf
- https://static.usrfiles.com/ugd/b972d5_cd937baaa36d415abe77b434b5dc1b4e.pdf
- https://static.usrfiles.com/ugd/21e6f2_8a2caf13bc484810ae8c91864c2b0c36.pdf
- https://static.usrfiles.com/ugd/3b0c81_82205c7e741941ebb3074bb0826c80f3.pdf
- https://static.usrfiles.com/ugd/b8c837_66982b67d4c2464abc877d2469cd7e2e.pdf
- https://static.usrfiles.com/ugd/70a38d_5739ea6a213b404b9e051781fc19a849.pdf
- https://cdn.shopify.com/s/files/1/0437/6562/9077/files/caracteristicas_del_suelo_arenoso.pdf
- https://cdn.shopify.com/s/files/1/0434/7723/7913/files/thieme_atlas_of_anatomy_latin_nomenclature_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dilos.pdf
- https://static.usrfiles.com/ugd/105a8c_c47754175453433bb9ae467484b32375.pdf
- https://static.usrfiles.com/ugd/b8c837_f6e6a14ae419474ab037a6167571e6d1.pdf
- https://static.usrfiles.com/ugd/32acb1_ff2ad99991cc4a2c8b89da35493fad63.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_off00007ab0.bin` `ee17715312d721ea65061f9160afba7dd911c13f54d45deffeb3257217ca6815`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AB0	5084 bytes
`font_01_sfnt_off00008bd5.bin` `49c09ee32be81e885ea3292f9d1670d55d2beefae2f88804938ed600eaac9bd0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BD5	14304 bytes

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