Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
12/07/2026, 19:41
Behavioral task
behavioral1
Sample
90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe
- Size 640KB
- Sample260712-yejarags2r
- SHA256 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac
- MD5 038226b0269fa3d4936bdc9c52ae0250
- SHA1 6a94666b23337dfec8ae18231218ccbf31e89a7d
- SHA512 30e242cab974fb6c0536b9024e88910bd31defb84a4a08bca7e78b456bb9cea6af28b0cd64d2769c1c71d2236538e81c48632247a15cde7c3676d247e0f13426
- SSDEEP 6144:dcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:dSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1F3D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3580 b27a5094 - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 1 114.114.114.114 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Destination IP 2 223.5.5.5 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Destination IP 8 114.114.114.114 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Destination IP 9 223.5.5.5 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C b27a5094 File created C:\Windows\SysWOW64\b27a5094 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b27a5094 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b27a5094 -
resource yara_rule behavioral2/memory/5100-0-0x00000000000A0000-0x000000000012C000-memory.dmp upx behavioral2/files/0x000e000000016ccb-2.dat upx behavioral2/memory/3580-3-0x0000000000250000-0x00000000002DC000-memory.dmp upx behavioral2/memory/5100-10-0x00000000000A0000-0x000000000012C000-memory.dmp upx behavioral2/memory/3580-11-0x0000000000250000-0x00000000002DC000-memory.dmp upx behavioral2/memory/3580-26-0x0000000000250000-0x00000000002DC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3d4a78 b27a5094 File opened for modification C:\Windows\575058 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.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 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b27a5094 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b27a5094 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b27a5094 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b27a5094 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b27a5094 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b27a5094 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b27a5094 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b27a5094 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b27a5094 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b27a5094 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3580 b27a5094 3580 b27a5094 3580 b27a5094 3580 b27a5094 3580 b27a5094 3580 b27a5094 3580 b27a5094 3580 b27a5094 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Token: SeTcbPrivilege 5100 90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe Token: SeDebugPrivilege 3580 b27a5094 Token: SeTcbPrivilege 3580 b27a5094
Processes
-
C:\Users\Admin\AppData\Local\Temp\90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.exe"C:\Users\Admin\AppData\Local\Temp\90a1e7c34051ee1c286115ad5955ad29f15608db9c5d6326a05fd19ba4369dac.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:5100
-
C:\Windows\Syswow64\b27a5094C:\Windows\Syswow64\b27a50941⤵
- 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:3580
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b27a5094
- Size 640KB
- SHA256 68d7d3807f7446dd9d445239f3a511dcb86b54cca900a9b92ea4793643c00727
- MD5 cc303ff948b393864d3d6bdb7aee6a82
- SHA1 10ac7904a3e3f54e134bea929e512ae70ac84c25
- SHA512 479fd1a23252513a842943d513cf81823f61c8b1316906e071dbff375e6ab83bb2c031df204d26e3ddeac8fafad5885975e37bbc3cff14ad2ad63112e32c9d57
- SSDEEP 6144:ucTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:uSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T170D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH