PDF malware analysis — malicious · ea617f80e7d5d15e

MALICIOUS

PDF

45.3 KB Created: 2020-09-11 16:19:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2879a66ed130477d7486a31f97514294 SHA-1: 5ef4811fa6e8303ab877feb3a0c3e70d958a98eb SHA-256: ea617f80e7d5d15e81bfedae3e5bcec906941b5e3925be50bf3b1764b9fe9486

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link disguised as 'freezing point depression post lab answers', which is a common lure for educational content. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms that the primary URL leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger network of SEO-optimized PDF links, suggesting a coordinated effort to distribute malicious content. No scripts were extracted, but the presence of multiple malicious links points to a phishing or scam campaign.

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.link/wix?keyword=freezing+point+depression+post+lab+answers
- http://files.doceydandies.org/uploads/1/3/1/4/131407635/xitebanazofepelatet.pdf
- http://files.westsideyouthministry.org/uploads/1/3/1/1/131164081/3d9190fd.pdf
- http://files.sparkcreativity.net/uploads/1/3/1/4/131437464/baduk-jelekixaxazepo-kipido.pdf
- http://files.doceydand
- https://static.usrfiles.com/ugd/73f3b0_c2f8befd4ae4491380cef99849f61230.pdf
- https://cdn.shopify.com/s/files/1/0437/9761/0657/files/79740577359.pdf
- https://cdn.shopify.com/s/files/1/0439/1819/6891/files/85793572445.pdf
- https://cdn.shopify.com/s/files/1/0427/9785/8972/files/aretha_franklin_funeral_program_booklet.pdf
- https://cdn.shopify.com/s/files/1/0429/7372/4825/files/59242152324.pdf
- https://cdn.shopify.com/s/files/1/0433/1238/2117/files/gizekude.pdf
- https://cdn.shopify.com/s/files/1/0439/1275/7400/files/juboro.pdf
- https://cdn.shopify.com/s/files/1/0431/7016/8986/files/mefasirigi.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_off0000733e.bin` `c90727b2bb66c1214ee3365016c9b887383338db584ec051d8cb79637687f6d3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x733E	5364 bytes
`font_01_sfnt_off000085a1.bin` `5f670b2d29e5f1e70d8ded16d8809dcd29878c1b3df381f9fe62e50050ffaea5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85A1	10212 bytes

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