Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/05/2026, 12:04
Behavioral task
behavioral1
Sample
tmppmlvbbjk.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmppmlvbbjk.exe
- Size 110KB
- Sample260522-n83ldacy31
- SHA256 fe7b8cdc39247a1366c2f04d91a4ac93385177879509c02ac3761e5f637e85a0
- MD5 e18be89a930b6126348f95012530fd10
- SHA1 61974400e8ae35973a58bc9f14e50377a569e8fa
- SHA512 93cacbf2a69717da47e136a1e8300ca8f204be2c7864cc35d86e41e4c2bdfade7b60330eab9a875d9f51bb052cac5324d6729e8b654cba10249523d91645f297
- SSDEEP 1536:KiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:KiyvRmDLs/ZrwWJjAqGcRJ2hg
- TLSH T189B34B62F204E88BE817D8F69919CD3168A33DBD4890855E32D9BF6D58B3AD30459F0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1724 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\09FBAAFF = "C:\\Users\\Admin\\AppData\\Roaming\\09FBAAFF\\bin.exe" winver.exe -
resource yara_rule behavioral1/memory/3392-0-0x0000000000400000-0x000000000041E000-memory.dmp upx behavioral1/files/0x000c000000024536-19.dat upx behavioral1/memory/1724-22-0x0000000000400000-0x000000000041E000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 456 3692 WerFault.exe 87 - System Location Discovery: System Language Discovery 1 TTPs 3 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 tmppmlvbbjk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bin.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3692 winver.exe 3692 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3260 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 28 IoCs
description pid Process Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE Token: SeShutdownPrivilege 3260 Explorer.EXE Token: SeCreatePagefilePrivilege 3260 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3692 winver.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3260 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3392 wrote to memory of 3692 3392 tmppmlvbbjk.exe 87 PID 3692 wrote to memory of 3260 3692 winver.exe 56 PID 3260 wrote to memory of 4224 3260 Explorer.EXE PID 3260 wrote to memory of 4224 3260 Explorer.EXE PID 4224 wrote to memory of 1724 4224 Process not Found 97 PID 4224 wrote to memory of 1724 4224 Process not Found 97 PID 3692 wrote to memory of 2144 3692 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2144
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3260 -
C:\Users\Admin\AppData\Local\Temp\tmppmlvbbjk.exe"C:\Users\Admin\AppData\Local\Temp\tmppmlvbbjk.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3692 -s 3524⤵
- Program crash
PID:456
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C:\Users\Admin\AppData\Roaming\09FBAAFF\bin.exeC:\Users\Admin\AppData\Roaming\09FBAAFF\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1724
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3692 -ip 36921⤵PID:2700
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\09FBAAFF\bin.exe
- Size 110KB
- SHA256 e3acebdd832d939e59724ca41af038970398d104166f8a7928769b886777b2a3
- MD5 79b8fcd31505519dab8531f9a9a49700
- SHA1 530db31deecf70969ba07fc1a48a2a7387f6ab56
- SHA512 6513cf8bd50034bf6b60af9a1410982b03fe33d02846b0fda400aeffe4347451bcc91d8440b667a0682d0a3e3e1950c429c7518bdd814bf3edea8a1b93bede5e
- SSDEEP 1536:XiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:XiyvRmDLs/ZrwWJjAqGcRJ2hg
- TLSH T1E5B34B62F204E88BE817D8F69919CD3168A33DBD4890855E32D9BF6D58B3AD30459F0F
- MD5 SHA1 SHA512 SSDEEP TLSH