PDF malware analysis — malicious · 950d712a3861750e

MALICIOUS

PDF

45.0 KB Created: 2020-07-30 14:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5caf0699c2a1df6432e477a02a2404ab SHA-1: 8793ad0336deafe8ea7392951c0bddd6981a0eb4 SHA-256: 950d712a3861750e02c6b1b8f5742cb33e4e232ed94ff09753f871755f0f8a54

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a link farm designed to appear as educational material, specifically 'cbse class 10 sample paper 2020 english pdf'. The primary embedded URL, https://ttraff.cc/pify?keyword=cbse+class+10+sample+paper+2020+english+pdf, is identified as a malicious redirector. The document body is heavily obfuscated and contains no readable text, but the heuristic firings strongly indicate a lure to a malicious site. No scripts were extracted from this sample.

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=cbse+class+10+sample+paper+2020+english+pdf
- http://files.kingdomgraphxx.com/uploads/1/3/1/3/131398102/bb8d5dd0e4e.pdf
- http://files.dbfloristofhouston.com/uploads/1/3/1/3/131383743/a948753b79ce.pdf
- http://files.widebaydancesupplies.net/uploads/1/3/0/8/130874120/7138489.pdf
- http://files.widcombecraftfair.com/uploads/1/3/1/4/131406430/746220.pdf
- http://files.georgiatechmocktrial.com/uploads/1/3/1/4/131453784/razosajamewugu.pdf
- http://files.widebaydancesupplies.net/uploads/1/3/0/8/130874
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56317886700.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8758/files/51747372253.pdf
- https://cdn.shopify.com/s/files/1/0433/5720/8731/files/perevutoxomut.pdf
- https://cdn.shopify.com/s/files/1/0427/4615/1078/files/8214626479.pdf
- https://cdn.shopify.com/s/files/1/0431/6374/6466/files/76103809173.pdf
- https://cdn.shopify.com/s/files/1/0434/0151/1064/files/18403032933.pdf
- https://cdn.shopify.com/s/files/1/0431/3127/3365/files/watupuvawazijujibuk.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/48397846101.pdf
- https://cdn.shopify.com/s/files/1/0437/4895/0170/files/wefog.pdf
- https://cdn.shopify.com/s/files/1/0440/9825/7048/files/33750759919.pdf
- https://cdn.shopify.com/s/files/1/0429/2273/7830/files/fakemedumoxowexotasonem.pdf
- https://cdn.shopify.com/s/files/1/0429/2732/5343/files/lajodewufukewibiw.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_off00007253.bin` `675b936e4451cea87692f0a4ea2d295f5bd1d7bde7fff605f4d13865258d856e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7253	5656 bytes
`font_01_sfnt_off0000854f.bin` `5c05ff57f2d245ac8196c1b6a3616e1306fa25b4cf6f9aff8362ba93a3a4940c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x854F	9720 bytes

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