675bc799ed57fa96a32acf0baea68723f246106f2cb9a9c42acd230d3c2a5cd3

Reason

Machine shutdown

General

Target

fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe
Size

60KB
MD5

fa9f11ac92ff66b24af0d2bc08fd3061
SHA1

85ac53134b6173c7f54b95b4d814348320798b05
SHA256

675bc799ed57fa96a32acf0baea68723f246106f2cb9a9c42acd230d3c2a5cd3
SHA512

755461ac7664b97365080b8242d00fcff350a2a9918af3a59c22077cf3df7c0e0065afe007857dac14ce3d5d9b5659eb471d4f0f13858afae493a70cfe116ead
SSDEEP

768:GTANmSXnJ0vS0Be06Zmbkx+uR8pNQVeqEbh9c8FgcZMVq2ZXhwfXXqVvKeBKGsJ5:QYJsjWo20pjrCJXhQXXqVieYJ/vhVNT

Score

8^/10

discovery evasion upx

Malware Config

Signatures

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3128	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	B98B1BED77090BD460E6.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2200-3-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/2200-5-0x0000000000400000-0x0000000000420000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	B98B1BED77090BD460E6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.exe

Checks SCSI registry key(s) 3 TTPs 5 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "182"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeSystemProfilePrivilege	3128	svchost.exe
Token: SeBackupPrivilege	116	vssvc.exe
Token: SeRestorePrivilege	116	vssvc.exe
Token: SeAuditPrivilege	116	vssvc.exe
Token: SeShutdownPrivilege	5104	shutdown.exe
Token: SeRemoteShutdownPrivilege	5104	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3132	LogonUI.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 3128	2200	fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3128	2200	fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3128	2200	fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe	82
PID 2200 wrote to memory of 3128	2200	fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe	82
PID 3128 wrote to memory of 912	3128	svchost.exe	83
PID 3128 wrote to memory of 912	3128	svchost.exe	83
PID 3128 wrote to memory of 912	3128	svchost.exe	83
PID 3128 wrote to memory of 5104	3128	svchost.exe	95
PID 3128 wrote to memory of 5104	3128	svchost.exe	95
PID 3128 wrote to memory of 5104	3128	svchost.exe	95
PID 3128 wrote to memory of 1792	3128	svchost.exe	96
PID 3128 wrote to memory of 1792	3128	svchost.exe	96
PID 3128 wrote to memory of 1792	3128	svchost.exe	96

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa9f11ac92ff66b24af0d2bc08fd3061_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Disables RegEdit via registry modification
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3128
- - C:\Windows\SysWOW64\reg.exe
    reg.exe add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:912
- - C:\Windows\SysWOW64\shutdown.exe
    shutdown.exe -r -f -t 0
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:5104
- - C:\Users\Admin\AppData\Local\Temp\B98B1BED77090BD460E6.exe
    C:\Users\Admin\AppData\Local\Temp\B98B1BED77090BD460E6.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1792

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:116

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
1⤵
PID:4016

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39a9055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\B98B1BED77090BD460E6.exe

Filesize
60KB

MD5
fa9f11ac92ff66b24af0d2bc08fd3061

SHA1
85ac53134b6173c7f54b95b4d814348320798b05

SHA256
675bc799ed57fa96a32acf0baea68723f246106f2cb9a9c42acd230d3c2a5cd3

SHA512
755461ac7664b97365080b8242d00fcff350a2a9918af3a59c22077cf3df7c0e0065afe007857dac14ce3d5d9b5659eb471d4f0f13858afae493a70cfe116ead

Download Submit
memory/1792-12-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2200-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2200-1-0x0000000000403000-0x0000000000407000-memory.dmp

Filesize
16KB

Download
memory/2200-2-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2200-3-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2200-5-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2200-6-0x0000000000403000-0x0000000000407000-memory.dmp

Filesize
16KB

Download
memory/3128-4-0x000000007F380000-0x000000007F38E000-memory.dmp

Filesize
56KB

Download
memory/3128-14-0x000000007F380000-0x000000007F38E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

Errors