PDF malware analysis — malicious · ae4584ac57db6fee

MALICIOUS

PDF

51.9 KB Created: 2020-09-18 11:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: af4fcc2ba666511a8387b5ae1f2c6157 SHA-1: 1044b48fc6b5e4e327854995d753fe8f24b682a6 SHA-256: ae4584ac57db6fee2acf45f653ea195a7ae7823d1743c41eecef953761fef35e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious link identified is https://ttraff.club/wix?keyword=west+bend+popcorn+popper+instructions+82512, which is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain similar URLs, suggesting a lure to external malicious content. No scripts were extracted from this sample.

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.club/wix?keyword=west+bend+popcorn+popper+instructions+82512
- http://files.rcoathletics.com/uploads/1/3/0/7/130775922/vamudaxopoju-xamiwar-pelukixuvapiz.pdf
- http://files.rimatlanta.org/uploads/1/3/2/6/132681579/tadobenuniwatufen.pdf
- http://files.mvpcorse.com/uploads/1/3/2/7/132740923/8356672.pdf
- http://puwop.graciebarrabath.com/uploads/1/3/2/8/132816100/eb8d50bb3debb.pdf
- http://files.doecsc.org/uploads/1/3/1/4/131408913/63476ec67b.pdf
- http://gugirek.sunfasteners.net/uploads/1/3/1/4/131437871/fa47e88.pdf
- http://dixiko.planningprotocol2.com/uploads/1/3/1/6/131606479/woxozaj.pdf
- http://faxajap.hokubeauty.com/uploads/1/3/1/0/131070450/zosonisuj_xowamulez.pdf
- https://cdn.shopify.com/s/files/1/0434/1976/2855/files/13343879984.pdf
- https://cdn.shopify.com/s/files/1/0460/2085/3927/files/84201373444.pdf
- https://cdn.shopify.com/s/files/1/0431/5738/9472/files/banking_awareness_arihant_free_download.pdf
- https://cdn.shopify.com/s/files/1/0440/4055/2598/files/lanelabuxevewe.pdf
- https://cdn.shopify.com/s/files/1/0435/9146/7176/files/23004704596.pdf
- https://cdn.shopify.com/s/files/1/0432/5467/7662/files/newest_android_update_note_8.pdf
- https://cdn.shopify.com/s/files/1/0463/5358/0198/files/xupuvuruvotizopuwiz.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
`font_00_sfnt_off00007456.bin` `8b01a4e0fe19fa0999a26a68b20277592ad55663eac9fa0a6f5b9bc9096633d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7456	5360 bytes
`font_01_sfnt_off000086aa.bin` `3992359124005cfac1fddd18dfce8625b7b52b6d110e2a9a53bdec0cf218ebd9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86AA	14476 bytes
`font_02_sfnt_off0000b463.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB463	4324 bytes

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