MALICIOUS — 2824.tmp
MALICIOUS — 2824.tmp is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Zusy family. 4 of 52 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
945a1481cd7267bf4b77193c7a11bced6e842c88cd9904da28d10a89325b83f8 - SHA-1:
91d46e11b74c074b04b74c7cb1110c26247507c1 - MD5:
31c7f6663b7dd2731f776bf4559af71a - imphash:
95122753ea27818b35f9b51859e4c692 - ssdeep:
49152:Qoa1taC070drgR/64DBlcHfKWc0ZJLjm4EkFbB:Qoa1taC06g9lcC0FC4Ek1B - TLSH:
T1025A224A4609670CF3F6C5846D28226EC442E8F7637C198B818FF15FB7CB99B681119B - Submitted as: 2824.tmp
- File type: pe · Size: 1958408 bytes
- Verdict: malicious (99/100) · Family: Zusy
Detections (4 of 52 engines)
- ClamAV (daily): Win.Malware.Zusy-9764479-0
- Microsoft Defender: Trojan:Win32/Salgorea!pz
- Emsisoft (Emergency Kit): Dump:Generic.Dacic.17983.C83B492E
- Kaspersky (KVRT): Backdoor.Win32.Salgorea.ic
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule
Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Zusy): E474.tmp - dynamic signal, weight 0.62, confidence 0.90
- Memory forensics: 5 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 8356) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - 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 28 external host(s) at runtime (9 HTTP) - network signal, weight 0.40, confidence 0.80
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
98 behavior events · 2 ATT&CK techniques · 2 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- searchapp.bundleassets.example
- inference.location.live.net
- ctldl.windowsupdate.com
- login.live.com
- desktop-hsgcbep
- ocsp.digicert.com
- config.edge.skype.com
- v20.events.data.microsoft.com
- windows.msn.com
- settings-win.data.microsoft.com
- officeclient.microsoft.com
- www.bing.com
- tas02.sls.update.microsoft.com
- to-do.microsoft.com
- assets.msn.com
- watson.events.data.microsoft.com
- time.windows.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\E474.tmp -
0e580bf19a99f1951cfc0641d62fcee13811b04b00cab2fe6629015d92832a54 - 100d89836e26c27b9dfa182289477c394325ff5d08c69870f7ba11d82c703891 -
100d89836e26c27b9dfa182289477c394325ff5d08c69870f7ba11d82c703891
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
Embedded domains
- p.us
- schemas.microsoft.com
Embedded IP addresses
- 203.26.79.13
- 20.42.65.85
- 57.155.104.224
- 52.110.12.26
- 135.233.95.144
- 57.155.101.212
- 20.76.201.171
- 52.110.12.54
- 172.215.188.225
- 4.150.223.105
- 20.231.239.246
- 92.223.78.30
- 172.66.2.5
- 4.230.171.124
- 172.178.240.161
- 40.84.97.4
- 4.207.44.76
- 52.230.59.222
- 4.247.188.224
- 20.165.94.46
- 20.165.94.63
- 135.232.92.97
- 52.168.112.66
- 4.150.223.106
- 20.42.65.93
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report