Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 03:24
Behavioral task
behavioral1
Sample
d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe
- Size 2.5MB
- Sample260529-dybd2aby4q
- SHA256 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52
- MD5 4824f161a6d3b6edf80c2b42d4a39a7f
- SHA1 f8fe4a141e0ddc694d7f861c5d5f1f73f5308194
- SHA512 b733d1a9fd7e03a13bf072e01c501884f419c68877ed4671f9e8d80623f0ac1416f6e29494437971c229eef79bb406e0595ee87a23bf13c7d0b95b5515195892
- SSDEEP 49152:qHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:qnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T1F1C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3324 405d8d86 - 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 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Destination IP 4 223.5.5.5 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Destination IP 49 114.114.114.114 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Destination IP 50 223.5.5.5 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 405d8d86 File created C:\Windows\SysWOW64\405d8d86 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 405d8d86 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 405d8d86 -
resource yara_rule behavioral1/memory/4044-0-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral1/files/0x000a0000000243cc-2.dat upx behavioral1/memory/3324-4-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx behavioral1/memory/4044-10-0x00000000008D0000-0x000000000095C000-memory.dmp upx behavioral1/memory/3324-11-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx behavioral1/memory/3324-26-0x0000000000C10000-0x0000000000C9C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\38e878 405d8d86 File opened for modification C:\Windows\453c18 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.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 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 405d8d86 - 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" 405d8d86 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 405d8d86 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 405d8d86 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 405d8d86 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 405d8d86 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 405d8d86 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 405d8d86 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 405d8d86 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 405d8d86 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3324 405d8d86 3324 405d8d86 3324 405d8d86 3324 405d8d86 3324 405d8d86 3324 405d8d86 3324 405d8d86 3324 405d8d86 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Token: SeTcbPrivilege 4044 d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe Token: SeDebugPrivilege 3324 405d8d86 Token: SeTcbPrivilege 3324 405d8d86
Processes
-
C:\Users\Admin\AppData\Local\Temp\d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.exe"C:\Users\Admin\AppData\Local\Temp\d4afb2f17f17c29b08ec3d2be479d8de4f813af2cd6d600b43e1cdaa39718a52.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:4044
-
C:\Windows\Syswow64\405d8d86C:\Windows\Syswow64\405d8d861⤵
- 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:3324
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\405d8d86
- Size 2.5MB
- SHA256 0bd00ec6305f807fba48b203610c24b1b68d76f6f77acb6b3d68d9fdae02130e
- MD5 6d248654f68b30bb25044558a1518b17
- SHA1 2d2620e299c69f11cd8e3c817fd31b91ae20fb8d
- SHA512 4c502c14c2562b62cc6db27e4a5c92e5a1c431397f930f1192ab5283261f13232e502e753eef45ab04d1fbd2f15351488120e1f4111f4adccc02b7b49c1fbc58
- SSDEEP 49152:cHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:cnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T180C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH