Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/09/2026, 19:22
Static task
static1
Behavioral task
behavioral1
Sample
6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe
Resource
win11ltsc2024-20260709-en
General
- Target 6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe
- Size 65KB
- Sample260910-x28y9avdkf
- SHA256 6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5
- MD5 71be9f95fd0ee0c705231293b7b99e62
- SHA1 f7ef601e84bbcc07f14c6def6c83964180046956
- SHA512 a063ad62373d9456bc332b2c35b8086c390f0ec5404ec8b3f6d8292ad0f38296b59ced1d607bd4aa1c6ff04fb7e6362890c0a6529d4641c9048c174c4ceeaf21
- SSDEEP 1536:QTbmTjdTjW62awlIhSWWeZh9UT/OZPHQgJ0:Q25vH2awlIMWWeryTSPrJ
- TLSH T11553BFC314044E93E2D172376E704761DFDAEA6B9350A823D0BB9E3DDB5436E48399AC
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
xworm
-
XWorm V5.6
-
31.57.97.30:4
-
Install_directory
%AppData%
-
install_file
SahmBypass.exe
-
localhost
127.0.0.1
Signatures
- Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/files/0x0007000000011394-4.dat family_xworm behavioral2/memory/4892-18-0x0000000000730000-0x0000000000746000-memory.dmp family_xworm - Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SahmBypass.lnk SahmBypass.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SahmBypass.lnk SahmBypass.exe - Executes dropped EXE 1 IoCs
pid Process 4892 SahmBypass.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2356 cmd.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4892 SahmBypass.exe Token: SeDebugPrivilege 4892 SahmBypass.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4804 wrote to memory of 4892 4804 6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe 89 PID 4804 wrote to memory of 2356 4804 6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe"C:\Users\Admin\AppData\Local\Temp\6a21c9523c854e4ce50fe137608bcb6b42c4e0d03131187cb6587b11f1f966e5.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Users\Admin\AppData\Local\Temp\SahmBypass.exe"C:\Users\Admin\AppData\Local\Temp\SahmBypass.exe"2⤵
- Creates a file in the Startup directory
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4892
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\127.bat" "2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:2356
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\127.bat
- Size 410B
- SHA256 34edd873f22b9c722abda7d5f85bcba7c456ddd7def004d4c0e0f72d359d3f56
- MD5 1dd3e37d5833ad7e036027b3a2ddfd37
- SHA1 bf6fc3307e44f009652fce812a4a9ff1b63d3987
- SHA512 e045cb2aa4e4516499c20690605f54443d49341f586d3c87aa7e096af3a051f375a2615fb4e5caeba8185c57153b5743ff03d644bda8c9acdf3b5080a8368709
- TLSH T183E0ABA72120098A27A913AFD980B00E7F5A1AE15BD9C2C7830A926F4CC402482F5BC0
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\SahmBypass.exe
- Size 59KB
- SHA256 22329c401c8db3bc8ef27d56e602ef8328d678de47dfb40ebccef195f623a06a
- MD5 bfdee077986c55ba7493e7ecb07cad58
- SHA1 32721f5c482a215dd08de227540394959a934957
- SHA512 05ac0b901cd72bdf00b791f7f949d3300675053266a2acb8d57bcca92bfd99348dbdfbc0b4165490cfbb19c8ffa64cabd8121c92707c33bc96cbe6f72e8c54f4
- SSDEEP 1536:DeEyyddmYHUscysKGKQTcyF8kbnbIBwDOHu2:KQ39HGnVjpykbnRDOHu2
- TLSH T1FB536C183BE24336E1FF6FF519F532A2D675F3231813AB5F24D901861617A8ACE01AE5
- MD5 SHA1 SHA512 SSDEEP TLSH