ee3f6aace3441323bf9b4dd3626d757357e90b1759b024ebd53cb2423a5f2c5b

General

Target

bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
Size

41KB
MD5

bc376ac317b088b1737900288d57b061
SHA1

89320b7bb51ccef79c5d6a671c8c042780be44e8
SHA256

ee3f6aace3441323bf9b4dd3626d757357e90b1759b024ebd53cb2423a5f2c5b
SHA512

892eb9d40c7369a6408b9242863996d3d905114ce5ba339ea7283d2133e7cf7c94d1d86caf86b660b4340b1dd1085527b1a754c5cb3d28f6316d42f4e9d9ce8e
SSDEEP

768:eyX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIorMtWcw5eGj5uiwbPE:egKcR4mjD9r82qMtWcEPwbPE

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2840	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/116-0-0x00000000003D0000-0x00000000003E7000-memory.dmp	upx
behavioral2/files/0x0008000000023452-6.dat	upx
behavioral2/memory/116-9-0x00000000003D0000-0x00000000003E7000-memory.dmp	upx
behavioral2/memory/2840-7-0x0000000000AF0000-0x0000000000B07000-memory.dmp	upx
behavioral2/files/0x000700000002337a-13.dat	upx
behavioral2/files/0x00090000000233f2-30.dat	upx
behavioral2/memory/2840-32-0x0000000000AF0000-0x0000000000B07000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 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\CTS = "C:\\Windows\\CTS.exe"	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
File created	C:\Windows\CTS.exe	CTS.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	116	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
Token: SeDebugPrivilege	2840	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2840	116	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe	84
PID 116 wrote to memory of 2840	116	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe	84
PID 116 wrote to memory of 2840	116	bc376ac317b088b1737900288d57b061_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\bc376ac317b088b1737900288d57b061_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bc376ac317b088b1737900288d57b061_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2840

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

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
349KB

MD5
9bb7d7023104dc77a741088cf680336c

SHA1
e72d800e3943e5ccba10d4de7e0d8a702289443f

SHA256
2663d3afcd173c6d066b92272e5bfc95c33d417791502c8c9e6ce7e1a240f332

SHA512
9cc8569f0a661f50af9dcad83f95659a8cdf68226db1cb3d33eb602d99899a087d84c67d8d2c1d6926b77883af115ddb7e178f920f48b0f9698c7dbb17543e14

Download Submit
C:\Users\Admin\AppData\Local\Temp\aAz4DKFyM91DiCm.exe

Filesize
41KB

MD5
58472f2012b385a1c078dee78cb80ebb

SHA1
670cea8170bcc66a6fd2c7590a8f62893a05e974

SHA256
ef4fd66c1e562cef9c933066a32a4af224f1f51c65084ad3d8013a2ba2fec5c4

SHA512
0e8d568be9bd6d8fbf759e5ef0ab623ffa3ac5895f8c580ba36665b1dc15c530eebabbacfddc5ea4b9a2d2ae0957254b2e051c919c71baf74d22c29f9f435850

Download Submit
C:\Windows\CTS.exe

Filesize
28KB

MD5
e6150447c894ade7b2b9ee88d5933922

SHA1
dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

SHA256
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

SHA512
d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

Download Submit
memory/116-0-0x00000000003D0000-0x00000000003E7000-memory.dmp

Filesize
92KB

Download
memory/116-9-0x00000000003D0000-0x00000000003E7000-memory.dmp

Filesize
92KB

Download
memory/2840-7-0x0000000000AF0000-0x0000000000B07000-memory.dmp

Filesize
92KB

Download
memory/2840-32-0x0000000000AF0000-0x0000000000B07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads