789ef37fc3f32fc6d70ca9b7682db6f69faab8b8a6af26c2ad59eeeeb069e01b

General

Target

eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe
Size

144KB
MD5

eab781c1598934481e99232cbcc3ea8f
SHA1

7d89db88e9995ce6edb0378db98f28bef0e3908e
SHA256

789ef37fc3f32fc6d70ca9b7682db6f69faab8b8a6af26c2ad59eeeeb069e01b
SHA512

cffe99defbef894cf1245afe298d40c8e0eb77a8e240bb5a1dbbaab737bbd34dcddcc8fa1aec2ad070acf51e0d96d9aa38421ffa81859df6b2c39cec4338263c
SSDEEP

3072:sr3KcWmjRrzSvr3KcWmjRrzSd8LAJbsRPYN20pHKTh68XBzrj:/QN8LAJI1YNEhj

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
5008	33ndXiOMJKv98oP.exe
440	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 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3612-0-0x00000000005A0000-0x00000000005B7000-memory.dmp	upx
behavioral2/files/0x000800000002347c-7.dat	upx
behavioral2/memory/440-10-0x00000000000E0000-0x00000000000F7000-memory.dmp	upx
behavioral2/memory/3612-9-0x00000000005A0000-0x00000000005B7000-memory.dmp	upx
behavioral2/files/0x0007000000023396-13.dat	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"	eab781c1598934481e99232cbcc3ea8f_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	eab781c1598934481e99232cbcc3ea8f_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	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe
Token: SeDebugPrivilege	440	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 5008	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe	82
PID 3612 wrote to memory of 5008	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe	82
PID 3612 wrote to memory of 440	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe	83
PID 3612 wrote to memory of 440	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe	83
PID 3612 wrote to memory of 440	3612	eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\eab781c1598934481e99232cbcc3ea8f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eab781c1598934481e99232cbcc3ea8f_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:3612
- C:\Users\Admin\AppData\Local\Temp\33ndXiOMJKv98oP.exe
  C:\Users\Admin\AppData\Local\Temp\33ndXiOMJKv98oP.exe
  2⤵
  - Executes dropped EXE
  PID:5008
- 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:440

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
392KB

MD5
afe320a59a96325ce76458b510234004

SHA1
ec59e7e9803c5b4efaa1e27d3679e880118eeb77

SHA256
f1e3f7a4879df6923a3503aa83fffd56ed69579bc46100971360228ee2106f0d

SHA512
469441069b142bbce911075a8edece434f1c3f9d31735d5c0f95060aaa73dcb78792895b067de5006c0b4010668fdd6bbcf1630f5ab033655b09728e40a3df43

Download Submit
C:\Users\Admin\AppData\Local\Temp\33ndXiOMJKv98oP.exe

Filesize
73KB

MD5
2ffc9a24492c0a1af4d562f0c7608aa5

SHA1
1fd5ff6136fba36e9ee22598ecd250af3180ee53

SHA256
69828c857d4824b9f850b1e0597d2c134c91114b7a0774c41dffe33b0eb23721

SHA512
03806d162931b1dcf036a51e753ff073a43664491a3cd2e649e55dd77d5e910f7bcf1e217eb0889ef606457b679428640e975ee227de941a200f652417bc6d5d

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
22069d1278ebf7d1758e20c4b118c39a

SHA1
cfd6c00953bc91dfa91a809e99a230b0ad222eec

SHA256
c4875ef691c5e0dbcdc5dd700f610042ec63e251f184150eeb3e7ab1dde3c9ba

SHA512
7ffbb4fce2779e7dc7ea19773a843eb174eb9e8dfc136a45ce8606c6c1657887f73409bfc780c391fe38dacc56c8a6ca4f84d3656236d631b42ec2946346b61d

Download Submit
memory/440-10-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/3612-0-0x00000000005A0000-0x00000000005B7000-memory.dmp

Filesize
92KB

Download
memory/3612-9-0x00000000005A0000-0x00000000005B7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads