Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/08/2026, 07:33
Behavioral task
behavioral1
Sample
ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe
- Size 1.7MB
- Sample260823-jdpc2sfk21
- SHA256 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791
- MD5 308c07422d15c7b03f32aa21de298991
- SHA1 5ec2b931922dd7b7f204c99ddd26d52ca3fab2da
- SHA512 99ff8d99dbc4904f81f19348f4931199ce6341e6bec979f1dea485d8968f3199618426ed87e8fe80fdb33d79b5129efa290c35b8415ebe179b8744ceac578ce7
- SSDEEP 24576:hvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:hHHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1DA858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2364 41ea01b6 - 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 5 114.114.114.114 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Destination IP 6 223.5.5.5 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Destination IP 40 114.114.114.114 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Destination IP 43 223.5.5.5 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 41ea01b6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 41ea01b6 File created C:\Windows\SysWOW64\41ea01b6 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe -
resource yara_rule behavioral1/memory/2168-0-0x0000000000F20000-0x0000000000FAC000-memory.dmp upx behavioral1/files/0x001d000000016810-2.dat upx behavioral1/memory/2364-4-0x00000000003B0000-0x000000000043C000-memory.dmp upx behavioral1/memory/2168-16-0x0000000000F20000-0x0000000000FAC000-memory.dmp upx behavioral1/memory/2364-17-0x00000000003B0000-0x000000000043C000-memory.dmp upx behavioral1/memory/2364-27-0x00000000003B0000-0x000000000043C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2878f8 41ea01b6 File opened for modification C:\Windows\251df0 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.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 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 41ea01b6 - 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 41ea01b6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 41ea01b6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 41ea01b6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 41ea01b6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 41ea01b6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 41ea01b6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 41ea01b6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 41ea01b6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 41ea01b6 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2364 41ea01b6 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Token: SeTcbPrivilege 2168 ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe Token: SeDebugPrivilege 2364 41ea01b6 Token: SeTcbPrivilege 2364 41ea01b6
Processes
-
C:\Users\Admin\AppData\Local\Temp\ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.exe"C:\Users\Admin\AppData\Local\Temp\ec3607ef6a3201865fb7b94f4d83ab690cdd5d8daeb6eab40276b15e23cac791.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:2168
-
C:\Windows\Syswow64\41ea01b6C:\Windows\Syswow64\41ea01b61⤵
- 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:2364
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\41ea01b6
- Size 1.7MB
- SHA256 a8e2b7de43f86920bf7121c98f111a1bff8245c8e9f61e3fc26141ad35d83a11
- MD5 bbc3c6c3cdc915d9619f2cef487782dd
- SHA1 a526a7d65fbe913360f35559c3ff95cfaaf513f7
- SHA512 8bc76f6af1b8bd7c8855ff8bbcf537abf6b85d429f7ea93fdcb42e403936b59b7ad5990262dd0c6fbf4d2cde59e134afcc36e7e15ef8835b60d9c2b73635a5bf
- SSDEEP 24576:/vO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:/HHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1E5858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH