Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/04/2026, 21:56
Behavioral task
behavioral1
Sample
cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe
Resource
win11-20260130-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe
- Size 640KB
- Sample260423-1tmb3agy6m
- SHA256 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6
- MD5 cfdd0acbaa36aa383d63e23b841ea49d
- SHA1 b173b76263dec01259a284db99d18b5f54954555
- SHA512 64d1fd0048776d0a8dbd975830d2adc3c050435929101c63471eb41a4fea3af6a04191e2b8baf1c1c323e1883f28cb98fc524a5f4fd930c84dd4368ab8a8ef82
- SSDEEP 6144:ucTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:uSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1ACD45B35A6808036C0B74631C6F64BAAF9B5BC21631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1384 f88b58a0 - 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 3 114.114.114.114 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Destination IP 4 223.5.5.5 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Destination IP 36 114.114.114.114 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Destination IP 37 223.5.5.5 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe - Drops file in System32 directory 11 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f88b58a0 File created C:\Windows\SysWOW64\f88b58a0 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f88b58a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f88b58a0 -
resource yara_rule behavioral1/memory/3432-0-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral1/files/0x0005000000022a24-2.dat upx behavioral1/memory/1384-4-0x0000000000500000-0x000000000058C000-memory.dmp upx behavioral1/memory/3432-10-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral1/memory/1384-13-0x0000000000500000-0x000000000058C000-memory.dmp upx behavioral1/memory/1384-32-0x0000000000500000-0x000000000058C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3ac1d0 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe File opened for modification C:\Windows\17b1d0 f88b58a0 - 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 f88b58a0 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f88b58a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f88b58a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f88b58a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f88b58a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f88b58a0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f88b58a0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f88b58a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f88b58a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f88b58a0 - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 1384 f88b58a0 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Token: SeTcbPrivilege 3432 cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe Token: SeDebugPrivilege 1384 f88b58a0 Token: SeTcbPrivilege 1384 f88b58a0
Processes
-
C:\Users\Admin\AppData\Local\Temp\cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe"C:\Users\Admin\AppData\Local\Temp\cb75f1a67ea7288f1c7a22c498ae46b8a5f81f2862bed2d614b43c2e9214eed6.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3432
-
C:\Windows\Syswow64\f88b58a0C:\Windows\Syswow64\f88b58a01⤵
- 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:1384
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f88b58a0
- Size 640KB
- SHA256 7a01d5707d797f4c932064e394d66555abcc8806a765c5e84791298c7bb09b0a
- MD5 b71646320f6fbb5e6bf8b7408fab0ddf
- SHA1 b41bb2b712e5adefa2515b6de07cd34ad26d81c3
- SHA512 3d97eed8fd13fc415fb2e5915e086c0dacefba79750cf59e6ee8812cc59356d413326a6ebf9dfecff2409a9276dceea880690061cd6318fc3e9cd51da6b18d86
- SSDEEP 6144:DcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:DSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T143D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH