PDF malware analysis — malicious · 4dff507507de0ad7

MALICIOUS

PDF

41.7 KB Created: 2020-08-22 23:10:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b107cf92161872cd100167b18f134d66 SHA-1: 1be235c1b2547d0f8cd16a6fbe11025ef066a60c SHA-256: 4dff507507de0ad7274204eb2fe378225212ada26c7ad9beaf0220cd4a52aa0a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL and a title that appears to be a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a broader campaign to distribute malicious content. No scripts were extracted from this sample.

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=chori+chori+sapno+video+song
- http://wimemuzi.sharonhalfordskintherapy.com/uploads/1/3/0/7/130739616/sudipotu.pdf
- http://files.topdogracing.com/uploads/1/3/1/6/131606719/livexed.pdf
- http://files.durantroadpetresort.com/uploads/1/3/1/4/131452733/1258681.pdf
- https://cdn.shopify.com/s/files/1/0430/6649/1042/files/sosafokubefexugir.pdf
- https://cdn.shopify.com/s/files/1/0434/5734/7749/files/93851660309.pdf
- https://cdn.shopify.com/s/files/1/0431/5850/3584/files/58512104541.pdf
- https://cdn.shopify.com/s/files/1/0437/0432/0154/files/jopigumexiketufutedug.pdf
- https://cdn.shopify.com/s/files/1/0462/7211/8941/files/25995328158.pdf
- https://cdn.shopify.com/s/files/1/0432/9694/8382/files/el_poder_curativo_de_la_cabala_completo.pdf
- https://cdn.shopify.com/s/files/1/0435/3864/5144/files/jisukuwuwamiziwo.pdf
- https://cdn.shopify.com/s/files/1/0463/1409/4749/files/805200073.pdf
- https://cdn.shopify.com/s/files/1/0438/5131/7408/files/wumaxidazuzowojan.pdf
- https://cdn.shopify.com/s/files/1/0428/3439/5295/files/92181898542.pdf
- https://cdn.shopify.com/s/files/1/0430/0773/8019/files/chacha_bhatija_bhojpuri_song_free.pdf
- https://cdn.shopify.com/s/files/1/0429/2545/7574/files/cartridges_of_the_world.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_off00004dc9.bin` `8f5c74b8ba61e4fd686dabeb7f158ca3998e1f0ad5841235dc927dacd4d3a657`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4DC9	5268 bytes
`font_01_sfnt_off00005fb1.bin` `63398c5d594eeec40029ac0ef314cb0a3bc7a8093d89f9ff81874a13295255aa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FB1	14864 bytes
`font_02_sfnt_off00008d6f.bin` `90e91e1a89e04dde9fd09d4b233088d3b603dc3e70217c928e8f92af3032b3d7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D6F	3148 bytes

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