PDF malware analysis — malicious · fe39c173d4e5156e

MALICIOUS

PDF

52.9 KB Created: 2020-08-31 00:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c53c573f02f201957ceee8184bc8239b SHA-1: 2ba2fbd018b8e573ff9d979dd4a08e3211290ac5 SHA-256: fe39c173d4e5156e4c52a19f9324bc6b59820d2978d375b192b159dc110ec222

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector infrastructure, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=hajjatul+wida+pdf', suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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=hajjatul+wida+pdf
- https://static.usrfiles.com/ugd/b8c837_af3fb698941c4120bcebc329ca68dcf0.pdf
- https://static.usrfiles.com/ugd/b8c837_acbb15457539486ea5a29a4648c0df70.pdf
- https://static.usrfiles.com/ugd/79e0dc_f95668d84fe14a3a9990bdf9882f0913.pdf
- https://static.usrfiles.com/ugd/868401_ae5480b2bf8347fab38d725ff993c124.pdf
- https://static.usrfiles.com/ugd/9edd50_0223db226a134fd4a633e149b7b5c31d.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/37932197689.pdf
- https://cdn.shopify.com/s/files/1/0435/9897/1038/files/78996470310.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesujegixaxufusataxa.pdf
- https://cdn.shopify.com/s/files/1/0432/8413/6086/files/mudaxaxunanukes.pdf
- https://cdn.shopify.com/s/files/1/0439/3032/1051/files/find_the_angle_between_two_vectors.pdf
- https://cdn.shopify.com/s/files/1/0434/0944/0917/files/13414803816.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off000098ef.bin` `538cbaa988e4f660a714a04eebeed474b42513693a66425a4a30722ce7b1b67b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x98EF	24764 bytes
`font_00_sfnt_off00006556.bin` `85c92372da3d0568605242334cbcea815266065c92e563ace652eb98211a9536`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6556	4888 bytes
`font_01_sfnt_off0000761f.bin` `5290abf685fe81b3568d8d0469d92427dff4de50875ff6cc35602c81dbd38520`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x761F	10088 bytes

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