MALICIOUS — dffe54361322166e156e3155a92ed81d23b402ddaca457920f0902ed5dbcac0e
MALICIOUS — dffe54361322166e156e3155a92ed81d23b402ddaca457920f0902ed5dbcac0e is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Zusy family. 6 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
dffe54361322166e156e3155a92ed81d23b402ddaca457920f0902ed5dbcac0e - SHA-1:
de6d5546b97d4d4dc79f2f558e84c99d7e24ff1a - MD5:
1e0302a1f7353f88eff6f6fcc5aaab68 - imphash:
c9b6c3da312e87a7377bab0dcbaf2d4a - ssdeep:
24576:SypW9SgLNZaOdcTMuUvxIgE8gNaoRKCTXLeTAgszYQKbt7zLLw3Er:St9SgLNZa6xIv2obTIDzLLw3Er - TLSH:
T1DA54336D7C1E99DFC2861388E74E220C89E159F9D929FD0E26E4F09D4893427BDB006D - Submitted as: dffe54361322166e156e3155a92ed81d23b402ddaca457920f0902ed5dbcac0e
- File type: pe · Size: 1108132 bytes
- Verdict: malicious (98/100) · Family: Zusy
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:
- ClamAV (daily): Win.Malware.Zusy-9781883-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Microsoft Defender: Trojan:Win32/Salgorea.VRR!MTB
- Kaspersky (KVRT): Backdoor.Win32.Salgorea.id
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9781883-0 (rule
Win.Malware.Zusy-9781883-0) - engine signal, weight 0.90, confidence 0.95 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 20 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: high-entropy-sections:, Microsoft Linker - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
160 behavior events · 1 ATT&CK techniques · 7 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\E6E5.tmp -
27ab88e9e32158e1d2d6162276e3813c7eae9f0756a731dbc827aa25cacbf1ad - cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 -
cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 - 96b139b62ceaa14a8306d2fba5b6caefabc7f6fb177d2f8b696f3112be7cba99 -
96b139b62ceaa14a8306d2fba5b6caefabc7f6fb177d2f8b696f3112be7cba99 - a5b1de001a6e0f7829bbfa1510d2f13472b2fe4bdfe57102f694c98a0e8a1932 -
a5b1de001a6e0f7829bbfa1510d2f13472b2fe4bdfe57102f694c98a0e8a1932 - 6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 -
6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 - 000a8059f6b8ba9d861304d3e68511ab987383f3b1586c2812dffac091a98688 -
000a8059f6b8ba9d861304d3e68511ab987383f3b1586c2812dffac091a98688 - 4bb20092a1a50c987a4810579527735e1da4a2b3c9438f238c63b5fef182d510 -
4bb20092a1a50c987a4810579527735e1da4a2b3c9438f238c63b5fef182d510
Embedded URLs
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787838643&P2=404&P3=2&P4=FaW2fyCHY8CaMsavqCRrCwHLzKfVDuk60p7110Kw5QowX7A%2fn%2bGVY5B8y3t2m1WmbDUpBEAHZC2Jonv7SE8cNA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- schemas.microsoft.com
Embedded IP addresses
- 52.123.252.243
- 52.168.117.169
- 4.230.171.124
- 20.42.179.204
- 52.253.84.76
- 135.233.95.80
- 20.165.94.63
- 135.232.92.97
- 20.42.65.88
- 74.178.76.128
- 203.26.79.13
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 40.103.64.242
- 172.178.240.161
- 52.148.114.188
- 52.110.12.26
- 72.154.7.97
- 52.110.12.50
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report