Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
26/08/2026, 21:36
Behavioral task
behavioral1
Sample
b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe
- Size 3.0MB
- Sample260826-1f8cdatzfs
- SHA256 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf
- MD5 2052e14576ecd4744ed72f022624d023
- SHA1 c4d7d6636d293d2316b59e6a2ba6f963ad879ee4
- SHA512 19222daf2a9d304bc8c08f1e237693dc1b0ae039898da0478f4e15aab5b9058c0ed949144bd37f27f1079fe07091b410601d52457d9096f5053e399cd2995076
- SSDEEP 49152:sA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:r/whnLrHp/qKm2/Sb/
- TLSH T1B0E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4156 3747743e - 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 5 114.114.114.114 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Destination IP 6 223.5.5.5 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Destination IP 24 114.114.114.114 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Destination IP 25 223.5.5.5 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Destination IP 67 114.114.114.114 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Destination IP 68 223.5.5.5 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3747743e File created C:\Windows\SysWOW64\3747743e b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3747743e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3747743e -
resource yara_rule behavioral2/memory/4908-0-0x0000000000B60000-0x0000000000E65000-memory.dmp upx behavioral2/files/0x0009000000011396-2.dat upx behavioral2/memory/4156-4-0x00000000000D0000-0x00000000003D5000-memory.dmp upx behavioral2/memory/4908-11-0x0000000000B60000-0x0000000000E65000-memory.dmp upx behavioral2/memory/4156-12-0x00000000000D0000-0x00000000003D5000-memory.dmp upx behavioral2/memory/4156-13-0x00000000000D0000-0x00000000003D5000-memory.dmp upx - 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 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3747743e - 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\History\CachePrefix = "Visited:" 3747743e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3747743e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3747743e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3747743e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3747743e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3747743e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3747743e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3747743e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3747743e - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4156 3747743e 4156 3747743e 4156 3747743e 4156 3747743e 4156 3747743e 4156 3747743e 4156 3747743e 4156 3747743e 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Token: SeTcbPrivilege 4908 b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe Token: SeDebugPrivilege 4156 3747743e Token: SeTcbPrivilege 4156 3747743e
Processes
-
C:\Users\Admin\AppData\Local\Temp\b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe"C:\Users\Admin\AppData\Local\Temp\b67b619d1ce20664329c49c837bddc724630fab9394e2cdc0706efb57003cedf.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4908
-
C:\Windows\Syswow64\3747743eC:\Windows\Syswow64\3747743e1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4156
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3747743e
- Size 3.0MB
- SHA256 af026c24d9e0ae89246f738b4bb57ffc589a642b2f31f017bb0642541dadcd8e
- MD5 b7fc12af4cc9eca64f68cae74c02ed27
- SHA1 719b4d1df79e2e4b1f24c15a392cdb1139cc7aae
- SHA512 846e2c61988217435a697e7bfd842daed3a383eedcb5950f2086a5b4abda9deebfd5819f5692c52cb342582c29f37f610b676e79728b8080d429950f33b3f733
- SSDEEP 49152:sA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:r/whnLrHp/qKm2/Sb/
- TLSH T13FE55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH