PDF malware analysis — malicious · d36ccee0a35b9d38

MALICIOUS

PDF

43.3 KB Created: 2020-07-27 01:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4e4d8f5737a7893c39310355bccce897 SHA-1: a81c0802c0973956a492add7ef0e89d2d0ffba4b SHA-256: d36ccee0a35b9d3863d4420e900c733fa11caf071a6660de92388bebc80f486c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a manual for a Cooler Master product. The file also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The primary malicious link is `https://ttraff.cc/pify?keyword=cooler+master+mastercase+h500p+manual`, which likely serves as a lure for phishing or to distribute further malware. No scripts were extracted, but the PDF structure and embedded links strongly suggest a malicious intent.

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=cooler+master+mastercase+h500p+manual
- http://files.atlantadentalanesthesia.com/uploads/1/3/1/4/131455883/najikenusapijevofifu.pdf
- http://files.halffastadventures.com/uploads/1/3/0/8/130814393/zigup.pdf
- http://files.etgmin.org/uploads/1/3/0/9/130969683/3608976.pdf
- http://files.londontoursatnight.co.uk/uploads/1/3/1/4/131483002/jarigela-takadumenax-kizalorujof.pdf
- http://files.londontoursatnight.co.uk/uploads/1/3/1/4/1314830
- https://cdn.shopify.com/s/files/1/0435/4496/9367/files/gazavotiziditazasit.pdf
- https://cdn.shopify.com/s/files/1/0428/7594/5126/files/famonumigutev.pdf
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/pafagafidom.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdf
- https://cdn.shopify.com/s/files/1/0428/9377/0919/files/68160213987.pdf
- https://cdn.shopify.com/s/files/1/0434/7753/2822/files/nalamuxowidanaxuruziluja.pdf
- https://cdn.shopify.com/s/files/1/0437/9066/3832/files/11567315285.pdf
- https://cdn.shopify.com/s/files/1/0439/1885/2264/files/nitukufijab.pdf
- https://cdn.shopify.com/s/files/1/0431/8740/4968/files/kilulosuloxu.pdf
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/64506544492.pdf
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/retexegodubi.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/wonakezevisomugekala.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_off00006a97.bin` `10d4e82ed07629d206d31361d6a323d5cd1643593e1c37e4fc463005d1e4ba66`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A97	5296 bytes
`font_01_sfnt_off00007c70.bin` `959374f144c13dcec7fdc958b27c90b0898b311fdda700831a6fa2ad40243507`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C70	10360 bytes

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