PDF malware analysis — malicious · 6639986a261b8dd0

MALICIOUS

PDF

41.1 KB Created: 2020-08-30 05:12:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0d17e5cb83891aec5b73ab1643e58d9 SHA-1: 273cca0bd58fe8b2a0520076f3be1fc3196ea541 SHA-256: 6639986a261b8dd0119190e58a9aab93ff5fc1d81c2773d9de126894d34669e5

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'mobile crane operator training manual'. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, but the PDF structure and embedded links are strong indicators of malicious intent.

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=mobile+crane+operator+training+manua
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_f46e50aafd554ce7b0cb93f8a1dd3400.pdf
- https://static.usrfiles.com/ugd/a1fb72_d2ee1c89dd6c446faf6405355831ea8b.pdf
- https://static.usrfiles.com/ugd/b8c837_f60e6bf37bba49bab33a35556f3a8162.pdf
- https://static.usrfiles.com/ugd/a1fb72_dd4c931456204978b5cad838e53c0f32.pdf
- https://static.usrfiles.com/ugd/c8a981_748b7376123a471cb1673d02cdeff0a7.pdf
- https://cdn.shopify.com/s/files/1/0434/0622/9654/files/fefisupasimokoseba.pdf
- https://static.usrfiles.com/ugd/6846fe_3db43bb9ac7b4cce8220b0c1c4909241.pdf
- https://static.usrfiles.com/ugd/b8c837_fd6c8e0a3cb7448b9d2ccae6fdfe30c9.pdf
- https://static.usrfiles.com/ugd/12745a_f7e1aafd99704606913de12f4263e59e.pdf
- https://static.usrfiles.com/ugd/b8c837_024c52b47c7746208769a887c0192cc8.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_off0000637c.bin` `d19bdce113c9ae273917f927c5a54c2018150b115a8abcfcf65a4841ad64bdcf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x637C	5220 bytes
`font_01_sfnt_off00007526.bin` `32068d7144e9c58f91b2d375d99c13108c3b8a64ccdf34aa390192774fbdbe92`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7526	10168 bytes

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