Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
27/05/2026, 07:56
Behavioral task
behavioral1
Sample
0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe
- Size 638KB
- Sample260527-jsnp3abs5s
- SHA256 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa
- MD5 2464159947a98e1741e2069dad6fbfc7
- SHA1 bd5fcf1789bf624315573e1d4807c08c1ffdf412
- SHA512 b0304d3c24dce591d6d1054d44950e3ee4cc3574f5d4c223dbc11e182ebd2dc43ecb81f5ad3360b87145788ed3b5894eb707ce78fce12627d3671a01d91c101c
- SSDEEP 6144:dcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:dSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T14ED46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 796 41ac73bd - 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 12 223.5.5.5 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Destination IP 1 114.114.114.114 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Destination IP 2 223.5.5.5 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Destination IP 11 114.114.114.114 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 41ac73bd File created C:\Windows\SysWOW64\41ac73bd 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 41ac73bd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41ac73bd -
resource yara_rule behavioral2/memory/4444-0-0x0000000000C70000-0x0000000000CFC000-memory.dmp upx behavioral2/files/0x001d00000002b33a-2.dat upx behavioral2/memory/796-4-0x0000000000530000-0x00000000005BC000-memory.dmp upx behavioral2/memory/4444-15-0x0000000000C70000-0x0000000000CFC000-memory.dmp upx behavioral2/memory/796-16-0x0000000000530000-0x00000000005BC000-memory.dmp upx behavioral2/memory/796-34-0x0000000000530000-0x00000000005BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\da0b8 41ac73bd File opened for modification C:\Windows\4c1538 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.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 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 41ac73bd - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 41ac73bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 41ac73bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 41ac73bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 41ac73bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 41ac73bd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 41ac73bd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 41ac73bd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 41ac73bd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 41ac73bd - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 796 41ac73bd 796 41ac73bd 796 41ac73bd 796 41ac73bd 796 41ac73bd 796 41ac73bd 796 41ac73bd 796 41ac73bd 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Token: SeTcbPrivilege 4444 0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe Token: SeDebugPrivilege 796 41ac73bd Token: SeTcbPrivilege 796 41ac73bd
Processes
-
C:\Users\Admin\AppData\Local\Temp\0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.exe"C:\Users\Admin\AppData\Local\Temp\0a56c370aeaee39b921df2c2e84b3655dac1531f788e5f13e2dbe1e6e527cdfa.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:4444
-
C:\Windows\Syswow64\41ac73bdC:\Windows\Syswow64\41ac73bd1⤵
- 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:796
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\41ac73bd
- Size 638KB
- SHA256 7a133fc7ae94b9b99b889dae457ff3a8133e8fccdcf3e7e5e5dd317611838c8a
- MD5 5389de9f2abd18ecf9f1649f62b28341
- SHA1 72483b944187fd8328e2d952a1ba259d90ef59a7
- SHA512 8fdced01ef4d89577696e7cc9b4a8c6164f3cbc5f9fc666387f8eee7bb06ac4937f7ad499951d30e3b558db9574240ed1b7a7e5d581f13f71efa9363dabf151b
- SSDEEP 6144:lcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:lSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T1BDD46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH