Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/07/2026, 04:09
Behavioral task
behavioral1
Sample
a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe
- Size 1022KB
- Sample260723-eq5tca1blc
- SHA256 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613
- MD5 720db154bc622253bf342b7ba688743c
- SHA1 d8a98199dc7d0e79d92ada9bedae88949b11a7cb
- SHA512 cb4e1850d28ab68080225e38058e287a801f0267171f16c15b650463a5d395f0efeba15a8e7613a3380017577db1fd1e036961f931f2b4a3e305539e17b2e731
- SSDEEP 12288:cSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidT:vvO2xJKRw2kOkx2LFRvcU6UQOJdT
- TLSH T1DD256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 6104 37589cac - 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 26 114.114.114.114 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Destination IP 27 223.5.5.5 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Destination IP 1 114.114.114.114 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Destination IP 4 223.5.5.5 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.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 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 37589cac File created C:\Windows\SysWOW64\37589cac a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 37589cac File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 37589cac -
resource yara_rule behavioral2/memory/5884-0-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/files/0x000d000000019caa-2.dat upx behavioral2/memory/6104-3-0x0000000000BB0000-0x0000000000C3C000-memory.dmp upx behavioral2/memory/5884-16-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/memory/6104-17-0x0000000000BB0000-0x0000000000C3C000-memory.dmp upx behavioral2/memory/6104-32-0x0000000000BB0000-0x0000000000C3C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\64bc78 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe File opened for modification C:\Windows\6880b0 37589cac - 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 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 37589cac - 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\Cookies\CachePrefix = "Cookie:" 37589cac Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 37589cac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 37589cac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 37589cac Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 37589cac Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 37589cac Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 37589cac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 37589cac Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 37589cac - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 6104 37589cac 6104 37589cac 6104 37589cac 6104 37589cac 6104 37589cac 6104 37589cac 6104 37589cac 6104 37589cac 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Token: SeTcbPrivilege 5884 a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe Token: SeDebugPrivilege 6104 37589cac Token: SeTcbPrivilege 6104 37589cac
Processes
-
C:\Users\Admin\AppData\Local\Temp\a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.exe"C:\Users\Admin\AppData\Local\Temp\a4f50fb2b4bac6a01c2d57b8ca384df0c9cfa35b30657f91d1729b5c3dc05613.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:5884
-
C:\Windows\Syswow64\37589cacC:\Windows\Syswow64\37589cac1⤵
- 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:6104
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\37589cac
- Size 1022KB
- SHA256 8634ebf3a1820318e3ea79e3f542d87c3ed15a8442b19ca1bd41a33dcfadd5de
- MD5 d95f3ff6733437e931d6d2b8283bb832
- SHA1 d016797aa7c940538d7829d6f38795f9e283e352
- SHA512 e12c4ea5487b91c658328b4dcae359483940bcee92d99e29f7161d65ab20e499e8750362640708c1fce754d7a0e90e8a19103b2f4c77a3c1de69f423e5bc66ce
- SSDEEP 12288:BSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidT:IvO2xJKRw2kOkx2LFRvcU6UQOJdT
- TLSH T1FD256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH