MALICIOUS — normal_5f875992cefcb.pdf
MALICIOUS — normal_5f875992cefcb.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (80/100). 3 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
9b63b55e9677e3b8cfa61be003cc290ed84271dbfde5693f8e702de1cb07bf39 - SHA-1:
41a4373937b57ec9df6f1b8a51a65db58d701a31 - MD5:
3e4764e9f97f7e164afa457b0509feb7 - ssdeep:
768:4SgGzpDwpxGoYQqZZsbBKHxTvOrjJ2LNxyJBpP/+WhJ45E5GTYPw0xnC0qi5i:OGFspxGbOXJiNkdOWf35GTGwonC0qi5i - TLSH:
T13C329EF350ABDC4C6AC2AB93ADFA25642099D3C96122976014DC776CC47CBFD6E20960 - Submitted as: normal_5f875992cefcb.pdf
- File type: pdf · Size: 46643 bytes
- Verdict: malicious (80/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 80/100 is the fusion of 7 weighted signals:
- Embedded link rated malicious by URL analysis: https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/difoduwebuvim.pdf - network signal, weight 0.70, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/123?keyword=easy+english+exercises+worksheets, https://cdn-cms.f-static.net/uploads/4366022/normal_5f86f92e98311.pdf, https://cdn-cms.f-static.net/uploads/4366336/normal_5f87246f8ad1d.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Contacted 15 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (19 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9619 behavior events · 1 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- searchapp.bundleassets.example
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- desktop-hsgcbep
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 250.255.255.239.in-addr.arpa
- 79.243.254.169.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- 23.40.52.209
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\a0530d94e4f5e23596c6e3966f990670.png -
dd7a542b39f14d9a26ec789c3aa9b07eaf3de9c32ab51d34bb2ffb7e9129b6ca - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
07edabbc09d58f6b46e11eb927472e5dd6b7f08f6fb77b6ea20c4a80ed01186e - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/123?keyword=easy+english+exercises+worksheets
- https://cdn-cms.f-static.net/uploads/4366022/normal_5f86f92e98311.pdf
- https://cdn-cms.f-static.net/uploads/4366336/normal_5f87246f8ad1d.pdf
- https://cdn-cms.f-static.net/uploads/4365582/normal_5f874755ec7a9.pdf
- https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/difoduwebuvim.pdf
- https://cdn-cms.f-static.net/uploads/4366987/normal_5f87344b7e292.pdf
- https://cdn-cms.f-static.net/uploads/4366008/normal_5f871162f2d6d.pdf
- https://cdn-cms.f-static.net/uploads/4365598/normal_5f86fb643bf27.pdf
- https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/caa64.pdf
- https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/14ad7f8718.pdf
- https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/5146662.pdf
- https://uploads.strikinglycdn.com/files/884c2e75-fa30-4e7f-90ae-3a461eee742a/83510173518.pdf
- https://uploads.strikinglycdn.com/files/56b1a7ab-86eb-4e40-a65e-e7d813de1d24/47222065482.pdf
- https://uploads.strikinglycdn.com/files/978af3f9-7893-496f-837c-0fccad67d1f1/zifadogilorimalusaxobur.pdf
- https://site-1038693.mozfiles.com/files/1038693/57494393010.pdf
- https://site-1039885.mozfiles.com/files/1039885/xinaluxipupanokarejato.pdf
- https://site-1043908.mozfiles.com/files/1043908/52643019722.pdf
- https://site-1038938.mozfiles.com/files/1038938/64114167168.pdf
- https://site-1040178.mozfiles.com/files/1040178/21784748851.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/
Embedded domains
- cctraff.ru
- cdn-cms.f-static.net
- nukevokisoget.weebly.com
- dimaxafazeza.weebly.com
- kabudededawizo.weebly.com
- tudupumodowi.weebly.com
- uploads.strikinglycdn.com
- site-1038693.mozfiles.com
- site-1039885.mozfiles.com
- site-1043908.mozfiles.com
- site-1038938.mozfiles.com
- site-1040178.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.165.94.46
- 52.123.252.213
- 74.178.76.128
- 172.66.2.5
- 13.89.179.15
- 52.230.59.222
- 172.178.240.161
- 52.110.12.48
- 4.150.223.96
- 52.178.17.233
- 92.223.78.30
- 52.123.129.14
- 162.159.36.2
- 40.104.4.2
- 4.230.171.124
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report