Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
25/08/2026, 21:30
Behavioral task
behavioral1
Sample
005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe
- Size 525KB
- Sample260825-1clzzazake
- SHA256 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d
- MD5 a4c78c743cd21ae46c5d0aa3b72c5679
- SHA1 9ca7f623ed9467d823ae9cc0586b9f11892b0241
- SHA512 c09ef4b33b2b85134a4c94204fc4ccdbd27ba5ffb41744a8dce5a232452e344ab682cf31f1ff1f8d00cc304e06b54a0fa530c7735166a1cc4d2196ad10e784c7
- SSDEEP 6144:tcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:tSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T19BB47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4768 b22ebdf8 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 4 223.5.5.5 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Destination IP 47 114.114.114.114 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Destination IP 48 223.5.5.5 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Destination IP 137 114.114.114.114 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Destination IP 138 223.5.5.5 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Destination IP 3 114.114.114.114 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 b22ebdf8 File created C:\Windows\SysWOW64\b22ebdf8 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b22ebdf8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 b22ebdf8 -
resource yara_rule behavioral1/memory/4620-0-0x0000000000B00000-0x0000000000B8C000-memory.dmp upx behavioral1/files/0x0006000000016917-3.dat upx behavioral1/memory/4768-4-0x0000000000220000-0x00000000002AC000-memory.dmp upx behavioral1/memory/4620-10-0x0000000000B00000-0x0000000000B8C000-memory.dmp upx behavioral1/memory/4768-11-0x0000000000220000-0x00000000002AC000-memory.dmp upx behavioral1/memory/4768-32-0x0000000000220000-0x00000000002AC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\51a140 b22ebdf8 File opened for modification C:\Windows\4f1898 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b22ebdf8 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b22ebdf8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b22ebdf8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b22ebdf8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b22ebdf8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b22ebdf8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b22ebdf8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b22ebdf8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b22ebdf8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b22ebdf8 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4768 b22ebdf8 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Token: SeTcbPrivilege 4620 005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe Token: SeDebugPrivilege 4768 b22ebdf8 Token: SeTcbPrivilege 4768 b22ebdf8
Processes
-
C:\Users\Admin\AppData\Local\Temp\005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe"C:\Users\Admin\AppData\Local\Temp\005428c81842f7431e2d09590d95d4405a41bc6384e98ed9417c732ba8baa87d.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4620
-
C:\Windows\Syswow64\b22ebdf8C:\Windows\Syswow64\b22ebdf81⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4768
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b22ebdf8
- Size 525KB
- SHA256 2ec029bfdae4096d8682c00fa0bb3c6233354fdfdde042c40b41df5c4065001e
- MD5 890d2136d09b45eab9ac30bdbe0505c1
- SHA1 da0ace39eaf28fe368da0c96d54902b0abf505ad
- SHA512 535360fda8ac2c71cb075f48ad6b52014ee3fcd05a72fa2197b102e87fd7a6cbb0b9a14f8a60eca56b2c17a0d91f9d53dd0729942668d591703a32ac1e7da582
- SSDEEP 6144:WcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8K:WSvO2x9mONvKRwLSFtsOkx2LIa+y
- TLSH T116B47D2AB6A0D076C4779579C4A257BAFBB1742137204ACFA390475A1F237E2BE3530D
- MD5 SHA1 SHA512 SSDEEP TLSH