PDF malware analysis — malicious · 51c60b1f3f8753df

MALICIOUS

PDF

47.6 KB Created: 2020-08-16 13:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b51131768a7c5886f8b05ca9e78085dd SHA-1: 34a1ee4a629d2918fe7826c5716b162256057568 SHA-256: 51c60b1f3f8753df139336f5c8c51352cd594eb7fa91273d93e8fa573c21c2a0

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=job+application+form+format+doc', is identified as a malicious redirector. This suggests the document is designed to lure victims with a job application theme and subsequently redirect them to malicious sites. No scripts were extracted, but the extensive link farm and the identified malicious redirector strongly indicate a phishing or redirection attack.

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=job+application+form+format+doc
- http://patafi.thebarefootmomma.com/uploads/1/3/2/6/132680839/basuz-gitadijamizono.pdf
- http://files.scribblegardencafe.com/uploads/1/3/1/1/131164081/fevuda_pumisod_xanuwo_gaziv.pdf
- http://busajido.tblacblog.com/uploads/1/3/1/0/131070357/fekukuzi.pdf
- http://files.fresnonutritionsolutions.com/uploads/1/3/2/6/132683111/9806049.pdf
- http://bewinebu.oilmonkees.com/uploads/1/3/1/4/131452938/ladoxomimibokawoxop.pdf
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/xakekuzifa.pdf
- https://cdn.shopify.com/s/files/1/0428/6909/6615/files/guvuvanodera.pdf
- https://cdn.shopify.com/s/files/1/0432/7361/7568/files/lifetidexopurotaku.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
- https://cdn.shopify.com/s/files/1/0431/4434/7799/files/87032152882.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13503036424.pdf
- https://cdn.shopify.com/s/files/1/0427/4873/9740/files/90898819134.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14985018959.pdf
- https://cdn.shopify.com/s/files/1/0438/1035/7405/files/kadixuzudamub.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_off00005d5c.bin` `4e12c6cc03fa77f99c7595b76c859940dd49d0eb8d25bd806991fd18d8fa5623`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D5C	5252 bytes
`font_01_sfnt_off00006f11.bin` `ef6a76644d3de3be36d7084847b32694e0a45a50081a0ad6d7b1e978a50d1720`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F11	9168 bytes
`font_02_sfnt_off00008d38.bin` `201663dea4866e52e6c74e187e44b7add0692c6357f9d91af4a6a2b1f0222da0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D38	9752 bytes

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