e4383935bc8dfcc8314c5e9cba2f3c49ed7cf1d38a50a61644a3c320d9cf0f68

General

Target

f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Size

107KB
MD5

f5624d97a72e252d1fa252edc1fab213
SHA1

5934fda090afbb9740ea9cb49c706d5f5209f9dd
SHA256

e4383935bc8dfcc8314c5e9cba2f3c49ed7cf1d38a50a61644a3c320d9cf0f68
SHA512

41206ea19ec0fa040c8daec8fea7b1dce46d7dcb80c928643e679845365ec33f52e92e6ad3b4dcd17a771dde8773530c89fd51c4363e351209b51c930c2bda93
SSDEEP

3072:IzN/9nWoR5XkY2jeqybtmXjaUfwTw2nLXC7dQD:C/ooR5UpjyQfwk2nbCC

Score

7^/10

discovery persistence ransomware upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Loads dropped DLL 2 IoCs

pid	Process
5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\lphcehvj0enjw = "C:\\Windows\\system32\\lphcehvj0enjw.exe"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\phcehvj0enjw.bmp	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\blphcehvj0enjw.scr	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\Wallpaper = "C:\\Windows\\system32\\phcehvj0enjw.bmp"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000900000001da8a-15.dat	upx
behavioral2/memory/5004-17-0x0000000002F70000-0x0000000003024000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.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

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Modifies Control Panel 8 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Colors\Background = "0 0 255"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\WallpaperStyle = "0"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\TileWallpaper = "0"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\OriginalWallpaper = "C:\\Windows\\system32\\phcehvj0enjw.bmp"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\ConvertedWallpaper = "C:\\Windows\\system32\\phcehvj0enjw.bmp"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\blphcehvj0enjw.scr"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\ScreenSaveActive = "1"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600"	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\Local Settings	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeBackupPrivilege	4024	vssvc.exe
Token: SeRestorePrivilege	4024	vssvc.exe
Token: SeAuditPrivilege	4024	vssvc.exe
Token: SeBackupPrivilege	4268	srtasks.exe
Token: SeRestorePrivilege	4268	srtasks.exe
Token: SeSecurityPrivilege	4268	srtasks.exe
Token: SeTakeOwnershipPrivilege	4268	srtasks.exe
Token: SeBackupPrivilege	4268	srtasks.exe
Token: SeRestorePrivilege	4268	srtasks.exe
Token: SeSecurityPrivilege	4268	srtasks.exe
Token: SeTakeOwnershipPrivilege	4268	srtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3176	5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe	82
PID 5004 wrote to memory of 3176	5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe	82
PID 5004 wrote to memory of 3176	5004	f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe	82

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\f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5624d97a72e252d1fa252edc1fab213_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\.tt8608.tmp.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3176

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:4024

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4268

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:3
1⤵
PID:2432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Local\Temp\.tt8608.tmp.vbs

Filesize
1002B

MD5
9df700c8f6fd43fac0a89aef04214bbd

SHA1
6ec8bc6d4041ccf19757757c0da6592469f71c57

SHA256
9ab6f2c3cc3965cd05f81d859bdfac3b25a5e70178f61ea677d31987c4e142fd

SHA512
8bbcd322f3998c0f7d81884737ca313c1353ac7e3899f168fc8d44eafbe064193353b8b16f92113288ff2102c47623b542861440c414b8acf36d75c4ad645d4d

Download Submit
C:\Windows\SysWOW64\blphcehvj0enjw.scr

Filesize
59KB

MD5
538f9ead95eba12134d95b4fe7082331

SHA1
527c50b92b5cededdd5b7e3edda71cb13d108dac

SHA256
a416bab39037854c14540edaaf80cff7b5f2e9db31eee235527574e8dedd54e6

SHA512
4631ff7cf868348585ee0e26591b95be3ee8b232c7980f5013f4464f285b0fbdef41794c44cb8653d6fb6dc815c0c0a9f4af780bfeb9b23d2f4c3bdc62bf4581

Download Submit
memory/5004-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/5004-4-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/5004-3-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/5004-2-0x00000000005D0000-0x0000000000600000-memory.dmp

Filesize
192KB

Download
memory/5004-1-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/5004-5-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/5004-17-0x0000000002F70000-0x0000000003024000-memory.dmp

Filesize
720KB

Download
memory/5004-18-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/5004-19-0x00000000005D0000-0x0000000000600000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads