PDF malware analysis — malicious · e93d8dd2b7f45431

MALICIOUS

PDF

44.2 KB Created: 2020-08-02 13:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a673f8e2ce75116b4dafa199d4acb4a5 SHA-1: 832db0ed0e3b58dd3c787f9b646e8b1f6efb54c6 SHA-256: e93d8dd2b7f454312a0b5c1cf5a1be6511423ac37a090add15de9b553cd4fe2c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, with one prominent link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Stardew valley sprinkler layout' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or to obscure the final malicious destination.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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/pify?keyword=stardew+valley+sprinkler+layout
- http://files.barnfullofequines.com/uploads/1/3/0/7/130776819/4606726.pdf
- http://files.katejohnstonacupuncture.com/uploads/1/3/1/4/131408970/1506880.pdf
- http://files.communityofstbridget.org/uploads/1/3/1/4/131412181/3034c4f5b.pdf
- http://files.myswimvillage.com/uploads/1/3/1/1/131164205/8091349.pdf
- https://cdn.shopify.com/s/files/1/0441/0333/6088/files/bujobeboranasesije.pdf
- https://cdn.shopify.com/s/files/1/0431/4690/3701/files/pitipafimigefiruvokog.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3479/files/29170780522.pdf
- https://cdn.shopify.com/s/files/1/0434/4319/1960/files/mifuvekolorutiw.pdf
- https://cdn.shopify.com/s/files/1/0430/9336/0791/files/likewukilufuvofabukifezo.pdf
- https://cdn.shopify.com/s/files/1/0435/1338/1028/files/83965339289.pdf
- https://cdn.shopify.com/s/files/1/0431/0577/9878/files/maxinoku.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdf
- https://cdn.shopify.com/s/files/1/0431/0233/9232/files/mupozusujadaxorubo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdf
- https://cdn.shopify.com/s/files/1/0430/6049/4485/files/sades_headset_drivers.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/58529849341.pdf
- https://cdn.shopify.com/s/files/1/0430/1488/1433/files/seduxuwabakuzawenofadomes.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_off00006d7e.bin` `ede092a9b32dd8b10b9497beba7931c87fc1b275ac2a17352b52973d76f1cc01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D7E	5376 bytes
`font_01_sfnt_off00007ff1.bin` `2671164838a5c513d97237b8b3cef7ff68525c62f9817003ec6b105888c426c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FF1	10640 bytes

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