PDF malware analysis — malicious · 69cd17883ddef99d

MALICIOUS

PDF

38.6 KB Created: 2020-08-31 22:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7441bcc38e843ca50372940a96f57a02 SHA-1: 37ccbf9beb2a7b23c7c59b90374d1175dd3ce1cb SHA-256: 69cd17883ddef99dc2cdcbf7a3ec1f60cb081e9c273097f70ce2d93bd18930a2

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded document body text mentions 'Pulse booking apk' and includes the malicious URL, suggesting the document's purpose is to trick users into downloading an application via the provided link. The ML classifier strongly supports the malicious verdict.

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.cc/wix?keyword=pulse+booking+apk
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_ab4b9dd1f4d2481b88e569ff2cff4b1a.pdf
- https://static.usrfiles.com/ugd/b8c837_74942d65a4a642b8b780e8b884f61fd6.pdf
- https://static.usrfiles.com/ugd/b6edda_f12faf5ca99d449db1810d929cf40691.pdf
- https://static.usrfiles.com/ugd/b8c837_08e45de8b96645c083bf5be921063285.pdf
- https://cdn.shopify.com/s/files/1/0434/8638/0189/files/86393223816.pdf
- https://cdn.shopify.com/s/files/1/0435/6443/3566/files/71327914697.pdf
- https://cdn.shopify.com/s/files/1/0440/4733/5574/files/72863686368.pdf
- https://cdn.shopify.com/s/files/1/0434/6786/6278/files/acentuadores_de_sabor.pdf
- https://static.usrfiles.com/ugd/a58b01_a6c9f37699164df7b5ce6cdde2b50c8a.pdf
- https://static.usrfiles.com/ugd/270e53_eb5c5d499e384a6aae318621d1880ead.pdf
- https://static.usrfiles.com/ugd/6116da_252de0d7f5e347eca2a58244f536c95a.pdf
- https://static.usrfiles.com/ugd/b8c837_09ff9eee10534719a34530a46cfcff34.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_off00005968.bin` `988990a6eafb82f0cebb0b09bdcd80bcfdfc83dc8370343b8a4c0b1dad1246fa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5968	5096 bytes
`font_01_sfnt_off00006ad7.bin` `978914d3eb7033ea4ee23141d77ce962a3d248924b93b8b259a7fe6986589acf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AD7	10360 bytes

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