866b87519958bb1248fad614affff4d15cc05cd8ef2a7b845157139c1719ce79

General

Target

0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Size

29KB
MD5

0838acc08b5f1e16483757c31935b586
SHA1

8066ad53404a88dbf5249e1419bef1248f37937a
SHA256

866b87519958bb1248fad614affff4d15cc05cd8ef2a7b845157139c1719ce79
SHA512

36dd441d215a2e9b2c6cf7afea8d109f8e125ac0311c122bde7cbc4e4e75153f738207c92ba2ef2c3209a4ff177d81bd200196415285ad419f7f4714440281e8
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFKA:SKcR4mjD9r823FKA

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3560	CTS.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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"	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4652-0-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/files/0x00080000000234d3-6.dat	upx
behavioral2/memory/3560-7-0x0000000000190000-0x00000000001A7000-memory.dmp	upx
behavioral2/memory/4652-10-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/files/0x0007000000023381-13.dat	upx
behavioral2/files/0x0009000000023476-30.dat	upx
behavioral2/memory/3560-33-0x0000000000190000-0x00000000001A7000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	0838acc08b5f1e16483757c31935b586_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	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4652	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Token: SeDebugPrivilege	3560	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 3560	4652	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	82
PID 4652 wrote to memory of 3560	4652	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	82
PID 4652 wrote to memory of 3560	4652	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0838acc08b5f1e16483757c31935b586_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:4652
- 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:3560

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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
352KB

MD5
1bca2ff5f964575ae1f4642c7821da2d

SHA1
1f1e69274c772576fa839d7eb92f4d99b34a42eb

SHA256
61d5fea24efbd60d657026db424d6fcde1f47615f44b835629bb54fdd5fd7e4b

SHA512
8c1def339eecd74c251d66181e2a6b7bc61b5cce46883bfeed16214ba8df9deb76c3d480b21d39ab4e9633a091e9171d4effeb8e4a6bdb1e8dbbe279d0737a4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\bB1ruxJ3dJM9ib2.exe

Filesize
29KB

MD5
bc16176fe967cec6235810cf1739d642

SHA1
ac0c7077dbc72458b40cc79084338c3fec1b0d66

SHA256
c0ce9056c21e4e7f3088e5304d80fb8f2607b3981441d233f967d9f9a35f85d6

SHA512
747aff91c443200083c5527f9258df4236cd4fbfdb0932e2d8df18877fc65e4f252f795706878e41fd28c84d65ee00389ce1c0dbef16d1ccde9b332404936427

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/3560-7-0x0000000000190000-0x00000000001A7000-memory.dmp

Filesize
92KB

Download
memory/3560-33-0x0000000000190000-0x00000000001A7000-memory.dmp

Filesize
92KB

Download
memory/4652-0-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download
memory/4652-10-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads