PDF malware analysis — malicious · c4eab2a7729b3341

MALICIOUS

PDF

44.9 KB Created: 2020-07-29 21:25:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4120b63f2ee8a444c5fc8124f47fd1b2 SHA-1: 6d1a3b44d46e2bcfd7af085572a6d3d387dc7c5e SHA-256: c4eab2a7729b33413aa6ace33257088bfead5ddc1bb506c36ad38b850e49834f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.ru'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that this URL is associated with malicious activity. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of external links, many hosted on Shopify, which are likely used to obscure the malicious destination. The document body is heavily obfuscated and does not provide clear textual lures.

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.ru/pify?keyword=aseptic+processing+of+food+pdf
- http://files.phi966.org/uploads/1/3/1/1/131163563/ce077d2b8.pdf
- http://files.jhslearningcommons.org/uploads/1/3/2/6/132695714/japututaxog.pdf
- http://files.newleaforganizingllc.com/uploads/1/3/1/8/131857071/6418065.pdf
- http://files.dunlapsrestaurant.com/uploads/1/3/1/3/131379832/bineno_fodos.pdf
- https://cdn.shopify.com/s/files/1/0432/9802/9733/files/zukokubepim.pdf
- https://cdn.shopify.com/s/files/1/0435/0243/6512/files/mesigujedoxabejolidaviv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdf
- https://cdn.shopify.com/s/files/1/0436/2207/2480/files/nevewenu.pdf
- https://cdn.shopify.com/s/files/1/0433/3774/4552/files/senodapalediruwek.pdf
- https://cdn.shopify.com/s/files/1/0434/4964/7261/files/wazawerapofogowi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nipexaledova.pdf
- https://cdn.shopify.com/s/files/1/0435/8068/6497/files/81795769793.pdf
- https://cdn.shopify.com/s/files/1/0434/7772/9442/files/zomojutusu.pdf
- https://cdn.shopify.com/s/files/1/0431/2373/6725/files/fipem.pdf
- https://cdn.shopify.com/s/files/1/0430/0272/4506/files/mojovafuke.pdf
- https://cdn.shopify.com/s/files/1/0430/8759/3632/files/28921210218.pdf
- https://cdn.shopify.com/s/files/1/0433/3345/1944/files/7547189725.pdf
- https://cdn.shopify.com/s/files/1/0435/8511/0171/files/91324105337.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_off000071fb.bin` `cf4aeacadab8221c0bc6919fdc71d764be555702b79f0fa19bc41f190ba0bfaa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71FB	4856 bytes
`font_01_sfnt_off00008289.bin` `0833e0b35e18f85dbfc3247582d8ba79fdf51ebd87d72b82092438f03c2b71d7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8289	10480 bytes

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