Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/07/2026, 23:29
Behavioral task
behavioral1
Sample
8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe
- Size 640KB
- Sample260710-3gx9xae18l
- SHA256 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9
- MD5 082295e8d5f80d2dff785903f41043a6
- SHA1 33f56d064ab5be159e903ccb7f1f5772f1ba11c5
- SHA512 d98174c8320a522946d0ad43b8e4e3aed973749349b712321f912b2fbf00fd4a08e310a7ebce7d46eb8cd5229ddb126e2e1dd449f744f355a380279d8e9dfd01
- SSDEEP 6144:vcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:vSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1F6D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4312 b4461691 - Unexpected DNS network traffic destination 8 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 2 223.5.5.5 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 35 114.114.114.114 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 36 223.5.5.5 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 61 114.114.114.114 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 62 223.5.5.5 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 103 114.114.114.114 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 104 223.5.5.5 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Destination IP 1 114.114.114.114 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b4461691 File created C:\Windows\SysWOW64\b4461691 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b4461691 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b4461691 -
resource yara_rule behavioral2/memory/6040-0-0x0000000000BB0000-0x0000000000C3C000-memory.dmp upx behavioral2/files/0x000b00000001b840-2.dat upx behavioral2/memory/4312-3-0x0000000000B90000-0x0000000000C1C000-memory.dmp upx behavioral2/memory/6040-18-0x0000000000BB0000-0x0000000000C3C000-memory.dmp upx behavioral2/memory/4312-19-0x0000000000B90000-0x0000000000C1C000-memory.dmp upx behavioral2/memory/4312-36-0x0000000000B90000-0x0000000000C1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\676830 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe File opened for modification C:\Windows\49d2b0 b4461691 - 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 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4461691 - 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 b4461691 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b4461691 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b4461691 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b4461691 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b4461691 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b4461691 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b4461691 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b4461691 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b4461691 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4312 b4461691 4312 b4461691 4312 b4461691 4312 b4461691 4312 b4461691 4312 b4461691 4312 b4461691 4312 b4461691 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Token: SeTcbPrivilege 6040 8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe Token: SeDebugPrivilege 4312 b4461691 Token: SeTcbPrivilege 4312 b4461691
Processes
-
C:\Users\Admin\AppData\Local\Temp\8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.exe"C:\Users\Admin\AppData\Local\Temp\8a40c3c3ba3b28af45640fb99586eab8a401d9547e0c06208502e662b271f4b9.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:6040
-
C:\Windows\Syswow64\b4461691C:\Windows\Syswow64\b44616911⤵
- 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:4312
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b4461691
- Size 640KB
- SHA256 780943651b41b480c9375b124eb2ea35202460c42a3b9bb597555d1095d108d0
- MD5 ed46cd05c5578c5fc03a4c7e2ff5f56e
- SHA1 818ee279d699052c8a43315d25c52011d630d13f
- SHA512 2232ebe63361833491347fd7c30dd4ee2ddf10532028378b8a230b979271b52dc8ef534824ad1c431b7c82537f53fd8996ee749a3444f5778559a6fe23ee9ef8
- SSDEEP 6144:McTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:MSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1C0D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH