PDF malware analysis — malicious · 259d0c5101f2ffd1

MALICIOUS

PDF

41.9 KB Created: 2020-08-13 13:54:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 52665ff6595ba724af6f99eccfebee97 SHA-1: cea687bcaa5fd5b2aee206df69cad8f28b6079c4 SHA-256: 259d0c5101f2ffd1bfdd0101e6a971818642d4b09f8d7c2ebb6e748bc9b59d2d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.com/wb?keyword=pulmonary%20valve%20stenosis%20pdf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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/wb?keyword=pulmonary%20valve%20stenosis%20pdf
- http://files.cancercervicalvph.org/uploads/1/3/1/1/131163684/xonezif_garagufore.pdf
- http://files.askthecat.org/uploads/1/3/0/7/130775033/1088374.pdf
- http://files.happyhealthysimplywell.com/uploads/1/3/2/6/132682607/2251954.pdf
- http://files.daughterofthestarswellness.com/uploads/1/3/1/4/131438142/sowusutazerima_bolerul_juwadi_luruzeva.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buxigol.pdf
- https://cdn.shopify.com/s/files/1/0435/4523/1509/files/antennas_and_wave_propagation_fourth_edition.pdf
- https://cdn.shopify.com/s/files/1/0434/3165/7638/files/nefoze.pdf
- https://cdn.shopify.com/s/files/1/0434/8179/2664/files/12318844495.pdf
- https://cdn.shopify.com/s/files/1/0441/0589/1992/files/chilton_manual_torrent.pdf
- https://cdn.shopify.com/s/files/1/0431/1721/5905/files/23761918561.pdf
- https://cdn.shopify.com/s/files/1/0432/6768/6558/files/temigoxugodotumixogofiva.pdf
- https://cdn.shopify.com/s/files/1/0431/7744/3483/files/zalimojalut.pdf
- https://cdn.shopify.com/s/files/1/0435/8114/5243/files/tobapo.pdf
- https://cdn.shopify.com/s/files/1/0433/9158/2357/files/xigavututomegutule.pdf
- https://cdn.shopify.com/s/files/1/0430/5453/0714/files/reguzusigimuza.pdf
- https://cdn.shopify.com/s/files/1/0436/4324/0606/files/71642614859.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7910/files/rovoranuzewovuvogamup.pdf
- https://cdn.shopify.com/s/files/1/0434/2179/4460/files/lonizeramidif.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_off000065d3.bin` `a50b6757f65ba154b394a43d1bbcb2cf763b3c96b2b15047554d7094e8c16012`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65D3	5352 bytes
`font_01_sfnt_off000077fb.bin` `51510a0791b07f02e5e8098f9a3cbaa48bdc3f2b9a8651da24b8e2a21bb2b26a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77FB	10144 bytes

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