Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
21/04/2026, 00:06
Behavioral task
behavioral1
Sample
f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe
- Size 766KB
- Sample260421-adqrfafy9l
- SHA256 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04
- MD5 07e957b84cea98fd22bcdfba63fdca46
- SHA1 d401e6b6c37c2805d804e4a4af2bbd64b03a31cf
- SHA512 f6f7438752e205c9381967df2949420bcdf95df63bff61c40e723f9b6abbab048ceb4adf08da91c5252766b9ee9942dc179f920f6d13f7e6ea2104f75f768257
- SSDEEP 12288:KSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:RvO2xJKRw2kOkx2LFRvcUV
- TLSH T1C7F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3152 c58bb7f0 - 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 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Destination IP 2 223.5.5.5 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Destination IP 21 114.114.114.114 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Destination IP 22 223.5.5.5 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 c58bb7f0 File created C:\Windows\SysWOW64\c58bb7f0 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c58bb7f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c58bb7f0 -
resource yara_rule behavioral2/memory/3048-0-0x0000000000C20000-0x0000000000CAC000-memory.dmp upx behavioral2/files/0x002000000002afee-2.dat upx behavioral2/memory/3152-3-0x0000000000520000-0x00000000005AC000-memory.dmp upx behavioral2/memory/3048-18-0x0000000000C20000-0x0000000000CAC000-memory.dmp upx behavioral2/memory/3152-20-0x0000000000520000-0x00000000005AC000-memory.dmp upx behavioral2/memory/3152-40-0x0000000000520000-0x00000000005AC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\35f6a0 c58bb7f0 File opened for modification C:\Windows\342ed0 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.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 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c58bb7f0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c58bb7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c58bb7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c58bb7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c58bb7f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c58bb7f0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c58bb7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c58bb7f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c58bb7f0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c58bb7f0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3152 c58bb7f0 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Token: SeTcbPrivilege 3048 f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe Token: SeDebugPrivilege 3152 c58bb7f0 Token: SeTcbPrivilege 3152 c58bb7f0
Processes
-
C:\Users\Admin\AppData\Local\Temp\f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.exe"C:\Users\Admin\AppData\Local\Temp\f4b96b97d07888d5ecb54427f48a3f2e617c7d4323a89b3317ee156ed4458c04.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:3048
-
C:\Windows\Syswow64\c58bb7f0C:\Windows\Syswow64\c58bb7f01⤵
- 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:3152
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c58bb7f0
- Size 766KB
- SHA256 52cfba622cc0ff714a45270d28565db615d4da38af80257cb5db5c2261115b4a
- MD5 92b38dca47f6b32e67ea99621f608c37
- SHA1 71698cf4bc307d21632f71b55e68b13fcc78b806
- SHA512 0fb188555465d174296d54ab48e28529f78b4b64b014f2274164d01f09690419baa78c583f7e877d56f56c406504f1cd12bac166cb96ace23ed4cebb58b4c087
- SSDEEP 12288:lSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Liw:EvO2xJKRw2kOkx2LFRvcUV
- TLSH T1F5F45A31E241C03AD0A74576C6FA0BAFE564BD25531155CBA3C43A6A2FB36D2BE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH