Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 00:59
Behavioral task
behavioral1
Sample
a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
General
- Target a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe
- Size 3.0MB
- Sample260817-bb2lla1ake
- SHA256 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e
- MD5 0d1f631457260f56eb25196d7c18f37a
- SHA1 4d388aee0dfc5487950ffb43e4f0c31603814dec
- SHA512 372fb7ea81971fce9800115bfb63b542be06fe360b8c3a91d4594726e5e478f01faea985ae7a02b9bc59a2111cd94e904034d2d9218e795265ec812b1a59e30c
- SSDEEP 49152:mA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:J/whnLrHp/qKm2/Sb/
- TLSH T134E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
pid Process 5232 ffc1031c 5096 ffc1031c - Unexpected DNS network traffic destination 2 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 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe Destination IP 1 114.114.114.114 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\ffc1031c a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe -
resource yara_rule behavioral2/memory/3856-0-0x00000000005F0000-0x00000000008F5000-memory.dmp upx behavioral2/files/0x00070000000113d4-2.dat upx behavioral2/memory/5232-3-0x0000000000380000-0x0000000000685000-memory.dmp upx behavioral2/memory/5232-4-0x0000000000380000-0x0000000000685000-memory.dmp upx behavioral2/memory/5096-6-0x0000000000380000-0x0000000000685000-memory.dmp upx behavioral2/memory/5096-7-0x0000000000380000-0x0000000000685000-memory.dmp upx behavioral2/memory/3856-8-0x00000000005F0000-0x00000000008F5000-memory.dmp upx - Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4428 sc.exe - Program crash 2 IoCs
pid pid_target Process procid_target 1132 5232 WerFault.exe 89 1480 5096 WerFault.exe 95 - 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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe Token: SeTcbPrivilege 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3856 wrote to memory of 4428 3856 a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.exe"C:\Users\Admin\AppData\Local\Temp\a2c39f701e6c700feb46e59ce5d3e4b42670f35193309a592608c478942bb18e.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
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Windows\SysWOW64\sc.exesc.exe start ie98nzLFcqggv2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4428
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C:\Windows\Syswow64\ffc1031cC:\Windows\Syswow64\ffc1031c1⤵
- Executes dropped EXE
PID:5232 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5232 -s 1482⤵
- Program crash
PID:1132
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5232 -ip 52321⤵PID:4436
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C:\Windows\Syswow64\ffc1031cC:\Windows\Syswow64\ffc1031c1⤵
- Executes dropped EXE
PID:5096 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 1482⤵
- Program crash
PID:1480
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 5096 -ip 50961⤵PID:5132
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:260
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ffc1031c
- Size 3.0MB
- SHA256 eaf6f0ffd5ec834260e67e68a4e2960f7eac9ba2c7ef3a1d404130a2a9a9f659
- MD5 8aeb42ce6fdeeb354db3c92d13d52c20
- SHA1 86465f89de278893af170d03f06bcddde133f396
- SHA512 abb7f17ca3305360007b1475f63e89a3cf48fe1547f025bdc1c57298db7628ec4c16f2650be7460f961a8409ff3d398ab81fc89a117fff2a86c49d6175bf1920
- SSDEEP 49152:DA/JuTQKqVmgbQIzZMPXpB91rHpn/qKmNAOaG6IOY/:U/whnLrHp/qKm2/Sb/
- TLSH T1D9E55953EB914AE8E39D0536DF544150E72AF2256BEF13A27428420DDE83387BF61A3D
- MD5 SHA1 SHA512 SSDEEP TLSH