Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
24/09/2026, 18:34
Behavioral task
behavioral1
Sample
31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe
- Size 1.2MB
- Sample260924-w7tk3stxes
- SHA256 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd
- MD5 4266fe0480396eb25b6dced5d7fbbc7f
- SHA1 532a9fc44254ac9ae7107dfc8f5339dd4aa0abe0
- SHA512 b5b5571bdb17496ebddca88fb365aeea52c5a011e7c38ef78d8a440babb225bef1b80da4f87b5980fbabe5645a62ce1fedda7d592d8a97958100706fb5a293e9
- SSDEEP 24576:uvO2xJKRw2kOkx2LFRvhuZ98Es8k3OH3C0rQ6+y:uHHKe2WQXhuTtS0rQi
- TLSH T142559E31E641C036D4A70176C6B94BBFA578BD22072555CBE3D43A6A2F722D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3456 d59b527f - Unexpected DNS network traffic destination 20 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 44 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 123 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 191 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 411 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 412 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 472 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 473 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 303 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 43 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 230 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 302 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 1 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 122 114.114.114.114 3456 d59b527f Destination IP 193 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 229 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 357 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 359 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 380 114.114.114.114 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 381 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Destination IP 3 223.5.5.5 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d59b527f File created C:\Windows\SysWOW64\d59b527f 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d59b527f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d59b527f -
resource yara_rule behavioral1/memory/3052-0-0x00000000003E0000-0x000000000046C000-memory.dmp upx behavioral1/memory/3456-4-0x0000000000460000-0x00000000004EC000-memory.dmp upx behavioral1/files/0x0012000000024161-3.dat upx behavioral1/memory/3052-20-0x00000000003E0000-0x000000000046C000-memory.dmp upx behavioral1/memory/3456-21-0x0000000000460000-0x00000000004EC000-memory.dmp upx behavioral1/memory/3456-40-0x0000000000460000-0x00000000004EC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3b2b00 d59b527f File opened for modification C:\Windows\344058 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.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 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d59b527f - 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:" d59b527f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d59b527f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d59b527f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d59b527f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d59b527f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix d59b527f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d59b527f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d59b527f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d59b527f - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3456 d59b527f 3456 d59b527f 3456 d59b527f 3456 d59b527f 3456 d59b527f 3456 d59b527f 3456 d59b527f 3456 d59b527f 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Token: SeTcbPrivilege 3052 31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe Token: SeDebugPrivilege 3456 d59b527f Token: SeTcbPrivilege 3456 d59b527f
Processes
-
C:\Users\Admin\AppData\Local\Temp\31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.exe"C:\Users\Admin\AppData\Local\Temp\31fefc9ee9e021325f7232d9d26bec3ca9086203788b102748135f1c14a948bd.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:3052
-
C:\Windows\Syswow64\d59b527fC:\Windows\Syswow64\d59b527f1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:3456
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\d59b527f
- Size 1.2MB
- SHA256 eed1a814e9b5eda680b4150aee832daddf3f4e2b7200fa6addcdedfa0523007e
- MD5 b30c82a947366cddb2e67b6cc59dc413
- SHA1 b1afaa9c633634c9d68f3a2f7589bffdc72913d0
- SHA512 2cd2d3b743aeb987df49db9532ab5b6b33b13a71c16c255e28e5b0c69b1a5febdcbe2e36a2e590c474f6a1e42d18090641d207f271d5775749ff4656e865f92d
- SSDEEP 24576:XvO2xJKRw2kOkx2LFRvhuZ98Es8k3OH3C0rQ6+y:XHHKe2WQXhuTtS0rQi
- TLSH T17A559E31E641C036D4A70176C6B94BBFA578BD22072555CBE3D43A6A2F722D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH