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
17/08/2026, 00:53
Behavioral task
behavioral1
Sample
ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
10 signatures
150 seconds
General
- Target ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe
- Size 2.9MB
- Sample260817-a8pgvs1scx
- SHA256 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a
- MD5 ae90758fbc316a846c091896aa117ae8
- SHA1 3d21e5dc3d5e0cc411eefe7fbc1a47ad02ca1551
- SHA512 8fbf2dc99aa5f88dac2215f3992d34b658e4da8f24f450533b84a33dfc76294f8d3139f64424b9e4657d3d6c19bb1deba65cce865bfac822576e7259b4ce0296
- SSDEEP 49152:fHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:fnKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1A4D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3244 d6247ec4 - 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 3 114.114.114.114 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Destination IP 5 223.5.5.5 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Destination IP 46 114.114.114.114 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Destination IP 47 223.5.5.5 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\d6247ec4 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d6247ec4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d6247ec4 -
resource yara_rule behavioral1/memory/4884-0-0x0000000000900000-0x000000000098C000-memory.dmp upx behavioral1/files/0x000a0000000242b6-2.dat upx behavioral1/memory/3244-4-0x0000000000170000-0x00000000001FC000-memory.dmp upx behavioral1/memory/4884-13-0x0000000000900000-0x000000000098C000-memory.dmp upx behavioral1/memory/3244-14-0x0000000000170000-0x00000000001FC000-memory.dmp upx behavioral1/memory/3244-32-0x0000000000170000-0x00000000001FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3789d8 d6247ec4 File opened for modification C:\Windows\539da8 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.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 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d6247ec4 - 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 d6247ec4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d6247ec4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d6247ec4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d6247ec4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d6247ec4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d6247ec4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d6247ec4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d6247ec4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d6247ec4 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 3244 d6247ec4 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Token: SeTcbPrivilege 4884 ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe Token: SeDebugPrivilege 3244 d6247ec4 Token: SeTcbPrivilege 3244 d6247ec4
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.exe"C:\Users\Admin\AppData\Local\Temp\ef500bb4c98aed4054f4a4df4d1a07ec812f2453ccc95613b44915f8a3670f8a.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:4884
-
C:\Windows\Syswow64\d6247ec4C:\Windows\Syswow64\d6247ec41⤵
- 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:3244
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\d6247ec4
- Size 2.9MB
- SHA256 90eeb582e5425941531c7d1ecf2f7adbcdea4fb0a88a6160d0c08bf570eb6c23
- MD5 5ce61d7904058f8b5eef752260f79d04
- SHA1 e408175e45cfadd40d9d4b023f99ffc941bc56b9
- SHA512 8f933c47a69f4405ee8e9a84ec5353bd1e7149cb9bdf45288e603533cf8577420fd79410eacf580d1314d128ad57b5e3362de7b2dcbdf740df9882a2ec34d218
- SSDEEP 49152:KHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:KnKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1B4D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH