Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/04/2026, 08:50
Behavioral task
behavioral1
Sample
27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe
- Size 3.0MB
- Sample260416-krss3abv8n
- SHA256 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371
- MD5 0163b70f8725d2e7a3da04d12cb0485d
- SHA1 73a203f59ca280d2cb905b8dc051b7898ad96fdb
- SHA512 d76e717e3e705212ac72f4547d98a34c5bb177cd64e9da4a11714cff3b606f87a37e84a4a17b1acc7c0f34be04db3e0003e85e82a3b85fea8217c6c6466ef5d5
- SSDEEP 49152:0A/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:D/whnLrHp/qKm2/Sb/
- TLSH T1DEE55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2160 2a84cb56 - 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 2 114.114.114.114 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 4 223.5.5.5 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 25 114.114.114.114 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Destination IP 28 223.5.5.5 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 2a84cb56 File created C:\Windows\SysWOW64\2a84cb56 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 2a84cb56 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 2a84cb56 -
resource yara_rule behavioral1/memory/2388-0-0x0000000000800000-0x0000000000B05000-memory.dmp upx behavioral1/files/0x000b00000001e6b9-2.dat upx behavioral1/memory/2160-4-0x0000000000020000-0x0000000000325000-memory.dmp upx behavioral1/memory/2388-13-0x0000000000800000-0x0000000000B05000-memory.dmp upx behavioral1/memory/2160-14-0x0000000000020000-0x0000000000325000-memory.dmp upx behavioral1/memory/2160-21-0x0000000000020000-0x0000000000325000-memory.dmp upx - 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 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2a84cb56 - 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\History\CachePrefix = "Visited:" 2a84cb56 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 2a84cb56 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 2a84cb56 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 2a84cb56 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 2a84cb56 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 2a84cb56 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 2a84cb56 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 2a84cb56 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 2a84cb56 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2160 2a84cb56 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Token: SeTcbPrivilege 2388 27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe Token: SeDebugPrivilege 2160 2a84cb56 Token: SeTcbPrivilege 2160 2a84cb56
Processes
-
C:\Users\Admin\AppData\Local\Temp\27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe"C:\Users\Admin\AppData\Local\Temp\27f764d2e745b8f5f9e418762390a8c61acb61e60647045494d06a7d3c1cc371.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2388
-
C:\Windows\Syswow64\2a84cb56C:\Windows\Syswow64\2a84cb561⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2160
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\2a84cb56
- Size 3.0MB
- SHA256 4c212bc566b67b308bb74e54c646c9e5a87141df3a52a31850f75b1c267fb413
- MD5 7e3556d7611e9d743e7b587747ff119e
- SHA1 d0d0b9a6b3965d98ea302f3b5c8603f928062306
- SHA512 4325b2b1cd5a4da1a0012a911df9003204f4d97d7bf6527777caa44b7c72821bf245ee0d6df735df28c3c4cc1024ec440b72f7c825a808168ab267ec6eabea00
- SSDEEP 49152:bA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:c/whnLrHp/qKm2/Sb/
- TLSH T1E3E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH