Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
28/04/2026, 19:29
Behavioral task
behavioral1
Sample
cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe
- Size 830KB
- Sample260428-x7grysdy4y
- SHA256 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f
- MD5 2d6d1f5b43a05684ea23e45321d863c0
- SHA1 8d58fab2df04acd64e6153b1b520458a81c37ecf
- SHA512 1cc57b854c636bb8cb30ca793a7954a452b0740e405ad339c1bce72c2b046ece391fc1b685fa8e64de5f13a4dafedb92b80f8f41b06bdd77af566a472b27fda3
- SSDEEP 12288:0SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:HvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T1FB055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3116 57e958d1 - 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 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Destination IP 2 223.5.5.5 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Destination IP 23 114.114.114.114 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Destination IP 24 223.5.5.5 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 57e958d1 File created C:\Windows\SysWOW64\57e958d1 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 57e958d1 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 57e958d1 -
resource yara_rule behavioral2/memory/2488-0-0x00000000002A0000-0x000000000032C000-memory.dmp upx behavioral2/files/0x000a00000000d352-2.dat upx behavioral2/memory/3116-4-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/memory/2488-18-0x00000000002A0000-0x000000000032C000-memory.dmp upx behavioral2/memory/3116-19-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/memory/3116-24-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3558d8 57e958d1 File opened for modification C:\Windows\2a9870 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.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 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 57e958d1 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 57e958d1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 57e958d1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 57e958d1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 57e958d1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 57e958d1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 57e958d1 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 57e958d1 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 57e958d1 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 57e958d1 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3116 57e958d1 3116 57e958d1 3116 57e958d1 3116 57e958d1 3116 57e958d1 3116 57e958d1 3116 57e958d1 3116 57e958d1 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Token: SeTcbPrivilege 2488 cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe Token: SeDebugPrivilege 3116 57e958d1 Token: SeTcbPrivilege 3116 57e958d1
Processes
-
C:\Users\Admin\AppData\Local\Temp\cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.exe"C:\Users\Admin\AppData\Local\Temp\cd4b9b7e214cd0e77b8c021a692b06ceef13f07512127da34b9fb61062af6f1f.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:2488
-
C:\Windows\Syswow64\57e958d1C:\Windows\Syswow64\57e958d11⤵
- 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:3116
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\57e958d1
- Size 830KB
- SHA256 d5edccba03b4c30e871419295292f4a6590ce35391c96eca5a15737815443008
- MD5 cd6423745bfd40b8112124f273654336
- SHA1 2c476eb02c4a4148f1c422c8dbc5e8e9e4fa31a2
- SHA512 62cb56cdbab51feee212bdd366463b3fdd95a1df5e0362d58b421ef89818eda274a56c9f209f679aa37a865cc137002cb74ab06ffdb8dfc481aa340e7548bfc5
- SSDEEP 12288:CSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3K:JvO2xJKRw2kOkx2LFRvcUQPK
- TLSH T1B8055A31E641C03AD0A74575C6FA4BBFE964BD25131165CBA3C43A262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH