Analysis
- max time kernel
148s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 22:15
Behavioral task
behavioral1
Sample
1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe
- Size 1024KB
- Sample260809-16gx4sem2t
- SHA256 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db
- MD5 2340263b1f42dd531b1673e503b4b984
- SHA1 2c7c7833be0e76a5062188670473ac147a289489
- SHA512 69f59214f293a8305c7a48162effe0664e15ee119573495c8a4f448f404ec4959f583c79baba12b838d7fd7ef35f6d6a263d66a3a3d1d39d5bf5a5b84dcb0d98
- SSDEEP 24576:VjHPOSOkx2LFshuZ98Es8k3OH3C0rQ6+y:VTGkQyhuTtS0rQi
- TLSH T13225AF31E242C03AD5A70172C6BE0BAF95787D25472951C7A3D43D6A2FB22D2AE3570F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3040 c3f91a2 - Unexpected DNS network traffic destination 22 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 181 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 262 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 323 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 4 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 39 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 310 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 355 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 356 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 410 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 1 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 40 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 148 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 261 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 312 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 324 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 409 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 93 114.114.114.114 3040 c3f91a2 Destination IP 149 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 180 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 234 114.114.114.114 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 235 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Destination IP 94 223.5.5.5 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c3f91a2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c3f91a2 File created C:\Windows\SysWOW64\c3f91a2 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe -
resource yara_rule behavioral2/memory/1140-0-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/files/0x00130000000118e9-4.dat upx behavioral2/memory/3040-3-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/1140-18-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/memory/3040-20-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/3040-21-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/3040-25-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/3040-27-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/1140-44-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/memory/3040-45-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/1140-48-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/memory/1140-52-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/memory/3040-53-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/3040-56-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/1140-57-0x0000000000580000-0x0000000000609000-memory.dmp upx behavioral2/memory/1140-67-0x0000000000580000-0x0000000000609000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\340bc0 c3f91a2 File opened for modification C:\Windows\138468 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.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 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c3f91a2 - 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 c3f91a2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c3f91a2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c3f91a2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c3f91a2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c3f91a2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c3f91a2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c3f91a2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c3f91a2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c3f91a2 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 3040 c3f91a2 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Token: SeTcbPrivilege 1140 1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe Token: SeDebugPrivilege 3040 c3f91a2 Token: SeTcbPrivilege 3040 c3f91a2
Processes
-
C:\Users\Admin\AppData\Local\Temp\1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.exe"C:\Users\Admin\AppData\Local\Temp\1f767d388e7e88ae0a77fea8cb3044d9996789d4d02f79131aa8065d0b6d55db.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:1140
-
C:\Windows\Syswow64\c3f91a2C:\Windows\Syswow64\c3f91a21⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:3040
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c3f91a2
- Size 1024KB
- SHA256 ba068943205e4fdf86146f13f97f4f176e1f145da1c535a9d25f079047f08bf6
- MD5 0d0dc799e56d4c5296ad9488f35b0c58
- SHA1 e37cfd6fb383a3df00e02a38c87b7df290322c49
- SHA512 4cd59567c05a467cd5ecc4b28d0889d4b437e58e960eeece41a266d68d0341c4fb4dda15371b31dbab2a356a27d7f90a88ea34c1649619579009da9243bfe244
- SSDEEP 24576:EjHPOSOkx2LFshuZ98Es8k3OH3C0rQ6+y:ETGkQyhuTtS0rQi
- TLSH T15425AF31E242C03AD5A70172C6BE0BAF95787D25472951C7A3D43D6A2FB22D2AE3570F
- MD5 SHA1 SHA512 SSDEEP TLSH