PDF malware analysis — malicious · 2d988474979f7c16

MALICIOUS

PDF

61.2 KB Created: 2020-09-07 17:01:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3316d9bac44cf60854f8bbecbb94e173 SHA-1: 54bbabc81573defed64938514a7812bacd4f5834 SHA-256: 2d988474979f7c16980f79a0be6e620fc804061c5761328052bd2b97a2dd69ee

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a prominent link to a redirector URL, disguised as a search result for educational material. This suggests a phishing or scam attempt to drive traffic to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link further supports this assessment. No scripts were extracted from this sample.

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.me/wix?keyword=milady+chapter+13+workbook+answers
- https://cdn.shopify.com/s/files/1/0460/6558/2235/files/27437279426.pdf
- https://cdn.shopify.com/s/files/1/0435/4444/5092/files/cemitrio_dos_vivos_lima_barreto.pdf
- https://cdn.shopify.com/s/files/1/0435/5912/5160/files/12467120326.pdf
- https://static.usrfiles.com/ugd/4d548e_18dae2b8c8d041018e70b83686154ed6.pdf
- https://static.usrfiles.com/ugd/dba42a_1b9cc8d5d2844354acc0f1dd314243aa.pdf
- https://cdn.shopify.com/s/files/1/0437/9217/1165/files/poziwutufilibu.pdf
- https://cdn.shopify.com/s/files/1/0437/3846/4417/files/zibowifitewowewadib.pdf
- https://cdn.shopify.com/s/files/1/0435/1311/8872/files/return_man_9.pdf
- https://static.usrfiles.com/ugd/3fc21f_19c4ffb5fb4442a0a2dc6f387e8e1161.pdf
- https://static.usrfiles.com/ugd/d8e941_a5e92e9f5c844b5c95c7360e762c9d79.pdf
- https://static.usrfiles.com/ugd/b8c837_9f30747a89bc433787fca59258c21f10.pdf
- https://static.usrfiles.com/ugd/affb4a_06f52c6088cd4665ab60914aa4bb76b9.pdf
- https://static.usrfiles.com/ugd/80fd5d_29312de155c949bfb6558d85352d2636.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_off0000b069.bin` `2234ecbb8744a6965c720019d7ffe51e71525d0c69974431fe5baa4b4029ebf8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB069	5780 bytes
`font_01_sfnt_off0000c437.bin` `7b314fbf2d1b908573b28af19dcec516fd9b95cc090f516b17a139a1d8d08b39`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC437	10480 bytes

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