PDF malware analysis — malicious · c35b4cf13a033113

MALICIOUS

PDF

50.0 KB Created: 2020-07-31 12:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 883d1d4d7a72bf606f6f4cfbfdfdd7d0 SHA-1: 6f0d477ccbaf169db4a837837b4157c4df90da41 SHA-256: c35b4cf13a033113425717e8ee6bff58d098cd71e10317f5271bde86063d4b73

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. The primary link points to a known malicious redirector, suggesting an attempt to lead the user to a malicious site. The document body, though heavily obfuscated, contains metadata related to PDF generation, and the file type is PDF. No scripts were extracted, but the presence of numerous external links and a malicious redirector strongly indicates a phishing or redirection attack.

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.com/pify?keyword=blower+s+daughter+piano+pdf
- http://files.pelfranchise.com/uploads/1/3/2/6/132695651/duxedugim.pdf
- http://files.annkellettghostwriting.com/uploads/1/3/1/1/131163643/e840ad5a0bf396.pdf
- http://files.npsarea12.com/uploads/1/3/1/3/131382955/rimuwezus.pdf
- http://files.oa-involve-agewell.ca/uploads/1/3/2/8/132814898/wurofojuzidati-katesemogaxute-kesibiri.pdf
- https://cdn.shopify.com/s/files/1/0433/0792/5654/files/2907609080.pdf
- https://cdn.shopify.com/s/files/1/0436/2783/9641/files/31039822517.pdf
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/paxogazemetovekikolidiw.pdf
- https://cdn.shopify.com/s/files/1/0434/4496/1436/files/xijupexizowazedeki.pdf
- https://cdn.shopify.com/s/files/1/0434/3008/4760/files/6323836830.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nunirisolifugonogebivaxez.pdf
- https://cdn.shopify.com/s/files/1/0432/8531/5744/files/polegut.pdf
- https://cdn.shopify.com/s/files/1/0429/2172/2015/files/biwijesisuzufugusojewolo.pdf
- https://cdn.shopify.com/s/files/1/0433/3902/2485/files/29707732546.pdf
- https://cdn.shopify.com/s/files/1/0437/7316/5725/files/21630398015.pdf
- https://cdn.shopify.com/s/files/1/0431/7098/8188/files/toregapozosa.pdf
- https://cdn.shopify.com/s/files/1/0431/4297/1553/files/67439019709.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3018/files/86083028623.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/
- https://cdn.shopify.com/s/files/1/0434/4496/14

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008640.bin` `6f913c3d85d1952c5506973ef46180b1d784b04cddd3ffd849a7f512ed9c9f76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8640	5324 bytes
`font_01_sfnt_off0000986d.bin` `720b8c3d064c55de6578747aed48deaf70dfac2146512b9c7e986f2389988bea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x986D	10128 bytes

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