PDF malware analysis — malicious · 6776eaf32e18ef01

MALICIOUS

PDF

46.5 KB Created: 2020-09-04 21:56:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9ea7851ea47f443f78c766732378c2b2 SHA-1: 457194cbfbb875829adee1e91ea5a1a7c29675f7 SHA-256: 6776eaf32e18ef012d9234ed03cb95710c206a2f127d9662b28f02994ef293e7

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to document conversion and includes the malicious URL. This suggests a phishing or redirection attempt, likely delivered as an attachment.

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.ru/wix?keyword=apache+poi+convert+docx+to+pdf+java
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/70094d_69c5b3a2207b45e9bc7801ff607109fe.pdf
- https://static.usrfiles.com/ugd/10b11f_b1ad0169c77945e7b825d2367b85ced8.pdf
- https://static.usrfiles.com/ugd/b52961_3cea3a846e8c4787bed8ad7e9e71728b.pdf
- https://static.usrfiles.com/ugd/735189_f62a64c50dd3408787c132fe06b690fa.pdf
- https://static.usrfiles.com/ugd/9d66c7_2c141b4be7d541e0b1e18fe57ff2ecaf.pdf
- https://static.usrfiles.com/ugd/8acad3_8a31106c89a84bf1987eb1037088a93e.pdf
- https://static.usrfiles.com/ugd/9a242c_38adb86fc47b4016a01d377825128ef2.pdf
- https://static.usrfiles.com/ugd/9c66ff_7c0e4b80bdb74c74bc11ad3ad46884a8.pdf
- https://static.usrfiles.com/ugd/b8c837_995ed97ac957410eb0a5da2a3520aa9b.pdf
- https://cdn.shopify.com/s/files/1/0431/5804/4823/files/seizures_guidelines_uk.pdf
- https://cdn.shopify.com/s/files/1/0428/7784/5671/files/bolamugomijazaz.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/xosivujagasedisagikexigit.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006bb0.bin` `15761e39152bd5d58df78bf206ad6a4633cfc311c4b2928ddfda596f9eff5ad2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BB0	5228 bytes
`font_01_sfnt_off00007d87.bin` `b59ca08ec646d6878afd26d082ada825ae9c6742dc9406aa74193d0e7e5c9455`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D87	15116 bytes

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