Analysis
- max time kernel
149s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
18/04/2026, 10:01
Behavioral task
behavioral1
Sample
b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe
- Size 1.4MB
- Sample260418-l2dbsscv7x
- SHA256 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b
- MD5 0ca62f9b5ef88ff05745b4a77085b776
- SHA1 7d95303919cfaa028f493e241b1223ff05960e06
- SHA512 287693ab81d9bead9d0a047e18c549620bf16561bb1b0f083b3791f1d5b021b258adf1b1a2f1dd4445dac801da4d88b3b80f5c73a44ac3d8e5ddb2daa61421f8
- SSDEEP 24576:KjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:KTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1DA658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4288 729fad94 - 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 23 223.5.5.5 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Destination IP 1 114.114.114.114 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Destination IP 2 223.5.5.5 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Destination IP 22 114.114.114.114 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 729fad94 File created C:\Windows\SysWOW64\729fad94 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 729fad94 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 729fad94 -
resource yara_rule behavioral2/memory/1108-0-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral2/files/0x002600000002b15b-2.dat upx behavioral2/memory/4288-3-0x00000000001D0000-0x0000000000259000-memory.dmp upx behavioral2/memory/1108-18-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral2/memory/4288-20-0x00000000001D0000-0x0000000000259000-memory.dmp upx behavioral2/memory/4288-24-0x00000000001D0000-0x0000000000259000-memory.dmp upx behavioral2/memory/1108-35-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral2/memory/4288-36-0x00000000001D0000-0x0000000000259000-memory.dmp upx behavioral2/memory/1108-43-0x00000000009D0000-0x0000000000A59000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\496980 729fad94 File opened for modification C:\Windows\12f828 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.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 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 729fad94 - 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 729fad94 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 729fad94 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 729fad94 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 729fad94 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 729fad94 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 729fad94 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 729fad94 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 729fad94 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 729fad94 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4288 729fad94 4288 729fad94 4288 729fad94 4288 729fad94 4288 729fad94 4288 729fad94 4288 729fad94 4288 729fad94 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Token: SeTcbPrivilege 1108 b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe Token: SeDebugPrivilege 4288 729fad94 Token: SeTcbPrivilege 4288 729fad94
Processes
-
C:\Users\Admin\AppData\Local\Temp\b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.exe"C:\Users\Admin\AppData\Local\Temp\b0045ed31f945f31e3cec789b15fbda5ae357616de95231414d742291fd7e54b.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:1108
-
C:\Windows\Syswow64\729fad94C:\Windows\Syswow64\729fad941⤵
- 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:4288
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\729fad94
- Size 1.4MB
- SHA256 d77457c8b0115b78b1861c17a99a60fd718d2a8f682e772d33ae383c98440f45
- MD5 8b05d1f059d9e726895249a09964940a
- SHA1 dbf4e93cd9d9fa50f4889a7a57cf0e7066e5563b
- SHA512 d2ddd04b547e637a5ec235ad5dbb193dba465b840d58b43b45e572db0a044e4669c0132647442870ffe9da9760911831d349d983e192829ef21b4c6a57822172
- SSDEEP 24576:mjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:mTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1EB658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH