Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 00:57
Behavioral task
behavioral1
Sample
4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe
- Size 638KB
- Sample260802-bazqls1dng
- SHA256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88
- MD5 b86ed461978f2f52bc3ed2bfd35c4be7
- SHA1 8259833bd5cd75cb6edbadf4d47a163602d7a6d1
- SHA512 3ee3530f541e62413d81c456615ea9d3cd773301a0933c49b17e680de2c884e1fe6b0c69b3bb5172904dd027d6ca9283492840c5a57e2446d263093015717579
- SSDEEP 6144:GcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:GSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T112D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4408 39c8e5c0 - 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 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Destination IP 4 223.5.5.5 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Destination IP 19 114.114.114.114 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Destination IP 20 223.5.5.5 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 39c8e5c0 File created C:\Windows\SysWOW64\39c8e5c0 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 39c8e5c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 39c8e5c0 -
resource yara_rule behavioral2/memory/3256-0-0x0000000000610000-0x000000000069C000-memory.dmp upx behavioral2/files/0x0009000000011374-2.dat upx behavioral2/memory/4408-4-0x0000000000480000-0x000000000050C000-memory.dmp upx behavioral2/memory/3256-13-0x0000000000610000-0x000000000069C000-memory.dmp upx behavioral2/memory/4408-14-0x0000000000480000-0x000000000050C000-memory.dmp upx behavioral2/memory/4408-38-0x0000000000480000-0x000000000050C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4b7770 39c8e5c0 File opened for modification C:\Windows\37be70 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.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 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 39c8e5c0 - 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\Content\CachePrefix 39c8e5c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 39c8e5c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 39c8e5c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 39c8e5c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 39c8e5c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 39c8e5c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 39c8e5c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 39c8e5c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 39c8e5c0 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 4408 39c8e5c0 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Token: SeTcbPrivilege 3256 4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe Token: SeDebugPrivilege 4408 39c8e5c0 Token: SeTcbPrivilege 4408 39c8e5c0
Processes
-
C:\Users\Admin\AppData\Local\Temp\4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.exe"C:\Users\Admin\AppData\Local\Temp\4cb21de30e5e5ec4de52b8e45bc7cfc3e7a33d070ff9e7f908bbae4a40868d88.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:3256
-
C:\Windows\Syswow64\39c8e5c0C:\Windows\Syswow64\39c8e5c01⤵
- 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:4408
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\39c8e5c0
- Size 638KB
- SHA256 fca00b3752aee339dc1c72edd4c1b047306efc1b0cfbb38d40f03c33634f46da
- MD5 1f6a27a3bec309ab657f167998e575a8
- SHA1 f96a9a0ce94b635a57c3df1c68a55b3452af4faa
- SHA512 ec68090bb053d65e6ca188341786bfed13463c86a9f553b00ac2715c8f173a20f57844169d8ee17aa210168fc8fc62dc0fbabebd6eb3ac7960678772901f773d
- SSDEEP 6144:tcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:tSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T14FD46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH