Analysis
- max time kernel
149s - max time network
150s - 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, 04:48
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe
Resource
win11-20260513-en
windows11-21h2-x64
8 signatures
150 seconds
General
- Target a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe
- Size 2.4MB
- Sample260529-ffhfqsds21
- SHA256 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6
- MD5 7e7faec3ccedc52260e234a5133303a1
- SHA1 52d8795100256564f6ad990b8988a5d49c0c2ee1
- SHA512 9ec66a4e0bc1bdb5db5173a515a8010cbfff41f48e37c5556aff54db361ad91970bc195ad357df9cdfc47822abb1adf9e9822f1a9f277259055937d01e934320
- SSDEEP 49152:aHHKO29QG56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtg:anKdVkOhCXHHFZMjHfUKkVWsi
- TLSH T180B58E31E6818136D1B34671C6FA57BBA5287C221711A5CFA3C47A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4720 cf5b2caf - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 4 223.5.5.5 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Destination IP 58 114.114.114.114 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Destination IP 59 223.5.5.5 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Destination IP 139 114.114.114.114 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Destination IP 140 223.5.5.5 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Destination IP 3 114.114.114.114 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\cf5b2caf a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cf5b2caf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cf5b2caf - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\44d2e8 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe File opened for modification C:\Windows\50cee0 cf5b2caf - 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 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cf5b2caf - 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 cf5b2caf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" cf5b2caf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" cf5b2caf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ cf5b2caf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing cf5b2caf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" cf5b2caf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" cf5b2caf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" cf5b2caf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" cf5b2caf - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4720 cf5b2caf 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Token: SeTcbPrivilege 4020 a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe Token: SeDebugPrivilege 4720 cf5b2caf Token: SeTcbPrivilege 4720 cf5b2caf
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.exe"C:\Users\Admin\AppData\Local\Temp\a2c8d6c48cdb649f556e05f2d7dc7fd032b939948af44f4f84d18c1dd2714ef6.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:4020
-
C:\Windows\Syswow64\cf5b2cafC:\Windows\Syswow64\cf5b2caf1⤵
- 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:4720
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\cf5b2caf
- Size 2.4MB
- SHA256 3fcd997dc5df95737f6e49ab9bd7dc496f0c34669c19be5f0d19d6701b89ffc6
- MD5 9a48c69ec29b16a51007213380ffc869
- SHA1 36d0838a3e6eec09d7cfed2bb752b0ddbea5b8fa
- SHA512 ec3296874e424664df81bffbf1aa969c40aa18ad7664d8a04136e7b7b300da8490c991d3cf8e0de0188f1ad333a5985dc72fb28b8f873bf70484bb6dcf492833
- SSDEEP 49152:XHHKO29QG56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtg:XnKdVkOhCXHHFZMjHfUKkVWsi
- TLSH T1CDB58E31E6818136D1B34671C6FA57BBA5287C221711A5CFA3C47A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH