Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 04:48
Behavioral task
behavioral1
Sample
a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe
- Size 1024KB
- Sample260529-fe5jwads2x
- SHA256 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116
- MD5 7ce086700681818f5d25a5a3f56d1240
- SHA1 a58b6fddb81824856f4c1c0a0cbb7a0a5623eb10
- SHA512 e35e2ca4e7a886d3a2b03644ba76e2029e8d45ba4cddaa359e782d4847ebbf4c80edb66768c2d1f14933e8ecc33374c9fd3d21ee4ddab0487f6ff8f826853f8b
- SSDEEP 24576:mjHPOSOkx2LFshuZ98Es8k3OH3C0rQ6+y:mTGkQyhuTtS0rQi
- TLSH T10025AF31E242C03AD5A70172C6BE0BAF95787D25472951C7A3D43D6A2FB22D2AE3570F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 828 bf03e475 - 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 11 223.5.5.5 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Destination IP 1 114.114.114.114 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Destination IP 2 223.5.5.5 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Destination IP 10 114.114.114.114 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bf03e475 File created C:\Windows\SysWOW64\bf03e475 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bf03e475 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 bf03e475 -
resource yara_rule behavioral2/memory/4348-0-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral2/files/0x001f00000002b27b-2.dat upx behavioral2/memory/828-4-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral2/memory/4348-18-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral2/memory/828-20-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral2/memory/4348-32-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral2/memory/828-33-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral2/memory/4348-37-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral2/memory/4348-49-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\e2cf8 bf03e475 File opened for modification C:\Windows\4a7078 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.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 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf03e475 - 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 bf03e475 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" bf03e475 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" bf03e475 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bf03e475 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ bf03e475 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" bf03e475 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" bf03e475 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" bf03e475 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing bf03e475 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 828 bf03e475 828 bf03e475 828 bf03e475 828 bf03e475 828 bf03e475 828 bf03e475 828 bf03e475 828 bf03e475 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Token: SeTcbPrivilege 4348 a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe Token: SeDebugPrivilege 828 bf03e475 Token: SeTcbPrivilege 828 bf03e475
Processes
-
C:\Users\Admin\AppData\Local\Temp\a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.exe"C:\Users\Admin\AppData\Local\Temp\a9d2327673c11ac157e15031a7f2e4e7e06e4b839a4e6160a36af49e68826116.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:4348
-
C:\Windows\Syswow64\bf03e475C:\Windows\Syswow64\bf03e4751⤵
- 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:828
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\bf03e475
- Size 1024KB
- SHA256 ecc95e90fa100ad47146162992bc4cd08ddf6cce7b1a1b84012f9b1c58ec8f00
- MD5 6541982ff2b934312af3f0c62f82245e
- SHA1 d50d5ac9fe58ac263352b8cc03f7f2cc7ac96cc9
- SHA512 bbd9385bec2bcd4dc1edf96038e8b327e220ad6529cc1fda918f4463824dea89414dd9b9a340878cab1a9fe4c5da148093ece4405ff6f6d503a823d8a6b0f46d
- SSDEEP 24576:ZjHPOSOkx2LFshuZ98Es8k3OH3C0rQ6+y:ZTGkQyhuTtS0rQi
- TLSH T1D625AF31E242C03AD5A70172C6BE0BAF95787D25472951C7A3D43D6A2FB22D2AE3570F
- MD5 SHA1 SHA512 SSDEEP TLSH