Analysis
- max time kernel
134s - max time network
120s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system - submitted
01/03/2024, 05:18
Static task
static1
Behavioral task
behavioral1
Sample
9f2830a19edaacf690e6626e58b201d747a5a510777e5e92acf42a4efd28ddb6.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
9f2830a19edaacf690e6626e58b201d747a5a510777e5e92acf42a4efd28ddb6.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
Seychelliske/brandbar/Choktilstandens.ps1
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
Seychelliske/brandbar/Choktilstandens.ps1
Resource
win10v2004-20240226-en
General
- Target Seychelliske/brandbar/Choktilstandens.ps1
- Size 55KB
- Sample240301-fzpddsdf32
- SHA256 ef2884aa50d62da1aae7a8822741cfe349d6a2fbead3af48698b5a75f0984842
- MD5 24331b1a54b51979a5d15264c3e8ce92
- SHA1 b59076231f0c495f0588d8aa5c9c2af74428a23d
- SHA512 5a909fe7b46c97b16e99b979de89f7ba3986b96f6e20daef0cb89f39a7e8b4dd2e3829de91f06ef2900d1b5021d23c80407bb41903cac1700dc1690d52738616
- SSDEEP 768:3anLEjThLL+4z+2ImC+8OCJirt+IDxIFdP/I6zmhQo6O8NbvQpCCwifW1IAxpwU:3aLEnh5c+o2tTVIw6zpBO8NspLf0L
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Modifies Installed Components in the registry 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe - Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_Classes\Local Settings explorer.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe 1692 powershell.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2700 explorer.exe - Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 1692 powershell.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe Token: SeShutdownPrivilege 2700 explorer.exe - Suspicious use of FindShellTrayWindow 29 IoCs
pid Process 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe - Suspicious use of SendNotifyMessage 18 IoCs
pid Process 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe 2700 explorer.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1692 wrote to memory of 2936 1692 powershell.exe 29 PID 1692 wrote to memory of 2936 1692 powershell.exe 29 PID 1692 wrote to memory of 2936 1692 powershell.exe 29 PID 1692 wrote to memory of 1844 1692 powershell.exe 33 PID 1692 wrote to memory of 1844 1692 powershell.exe 33 PID 1692 wrote to memory of 1844 1692 powershell.exe 33 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Seychelliske\brandbar\Choktilstandens.ps11⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c "set /A 1^^0"2⤵PID:2936
-
-
C:\Windows\system32\wermgr.exe"C:\Windows\system32\wermgr.exe" "-outproc" "1692" "1132"2⤵PID:1844
-
-
C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2700
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\OutofProcReport259415541.txt
- Size 1KB
- SHA256 7f8c948524f88288866f4de8bf46bd9bf7087863401125e8b2d9d48150c1cdbe
- MD5 bcb3da8e4fd4da1cb4e4504b5ece63e5
- SHA1 18fa0c4419164969bc31a32237f5c2f7ec775fac
- SHA512 0ff5176987732a248bc6e30195f3911d538012cc1b3b03c51901518525d9d5ba43c48fc54904eece10c6a62b16a42cfd0a9682bb5190efd50232f37babd43fed
- MD5 SHA1 SHA512