Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
24/04/2026, 06:59
Behavioral task
behavioral1
Sample
1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe
- Size 384KB
- Sample260424-hsbvtsas7x
- SHA256 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e
- MD5 54e8270bb731c52fc7ab4361649076be
- SHA1 86e5cb8dfee49a7451a6537d5cb662de1713cfd7
- SHA512 93731e59080847e07f2aa696827abcfffe0eb31c78e78db075dc9fb570f60f16346cda91d283f473d6064e5ed72aef99d416c0891dab3760db8e45b0cc78995f
- SSDEEP 6144:wl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOan5R2:EqXUHkUXe39sOkx2LIan5g
- TLSH T11E849D22F3518036C1A78672C7B70F9AF7A5BD18831253CB5340B56A2FB32D2AE35719
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4280 bec76620 - 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 3 114.114.114.114 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Destination IP 4 223.5.5.5 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Destination IP 25 114.114.114.114 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Destination IP 26 223.5.5.5 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe - Drops file in System32 directory 5 IoCs
description ioc Process File created C:\Windows\SysWOW64\bec76620 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 bec76620 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE bec76620 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies bec76620 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 bec76620 -
resource yara_rule behavioral1/memory/396-0-0x0000000000C80000-0x0000000000D09000-memory.dmp upx behavioral1/files/0x000a0000000242ce-2.dat upx behavioral1/memory/4280-3-0x0000000000900000-0x0000000000989000-memory.dmp upx behavioral1/memory/396-12-0x0000000000C80000-0x0000000000D09000-memory.dmp upx behavioral1/memory/4280-14-0x0000000000900000-0x0000000000989000-memory.dmp upx behavioral1/memory/396-23-0x0000000000C80000-0x0000000000D09000-memory.dmp upx behavioral1/memory/4280-24-0x0000000000900000-0x0000000000989000-memory.dmp upx behavioral1/memory/4280-28-0x0000000000900000-0x0000000000989000-memory.dmp upx behavioral1/memory/396-35-0x0000000000C80000-0x0000000000D09000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\494670 bec76620 File opened for modification C:\Windows\6c798 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.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 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bec76620 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing bec76620 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" bec76620 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bec76620 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix bec76620 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ bec76620 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" bec76620 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" bec76620 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" bec76620 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" bec76620 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 4280 bec76620 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Token: SeTcbPrivilege 396 1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe Token: SeDebugPrivilege 4280 bec76620 Token: SeTcbPrivilege 4280 bec76620
Processes
-
C:\Users\Admin\AppData\Local\Temp\1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.exe"C:\Users\Admin\AppData\Local\Temp\1c4b249ab6da2e1cb4ddc290cf29454a47d73cc0654731824e017dd29f31ee0e.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:396
-
C:\Windows\Syswow64\bec76620C:\Windows\Syswow64\bec766201⤵
- 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:4280
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\bec76620
- Size 384KB
- SHA256 f1753c5d59244ad8cda2d663981c87efdcde4588d1717a9c3030bc81cdfd5924
- MD5 9a4123eecca50e6ca1485b89d431822e
- SHA1 8c583b49226464d2cccc9f46612146fb9bd0c137
- SHA512 25effc45f4d5f04886095e76259331f43097b02b53875b52c46d9d57149fc11d591803d2d33d3be6d91bf2dad81706bd089d2b9797f8077ebc4260acea00865d
- SSDEEP 6144:Cl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOan5R2:aqXUHkUXe39sOkx2LIan5g
- TLSH T1EB849D22F3518036C1978672C7B70F9AF7A5BD18831253CB5340B56A2FB32D2AE35719
- MD5 SHA1 SHA512 SSDEEP TLSH