613db3afce99be098da6da81a16abbd281f6cac7a4f93960e6f9f5eb8553f1ff

General

Target

e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe
Size

239KB
MD5

b291a76fac914678daafc9d0a6f8e8cc
SHA1

8a7b74496983239c1a28ce9d6f2d382ec8b55c55
SHA256

e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28
SHA512

02ce74d892f280beabdb32e7be6df7763e0953085a35d87c725df6a074e3c8830bbd2f7a0b07aede895580df941717b307e775dc484f4472dc81832d2b59b8e1
SSDEEP

6144:Sjepbtc3rWVM9YdgxRtMSsHSFGLQ6Y5xKu+1+hUUEi3:SjephYqVM/xeS7xKuFhlEW

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4132	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/3836-0-0x00000000003D0000-0x00000000003E7000-memory.dmp	upx
behavioral2/files/0x00090000000234b1-6.dat	upx
behavioral2/memory/4132-8-0x00000000002A0000-0x00000000002B7000-memory.dmp	upx
behavioral2/memory/3836-7-0x00000000003D0000-0x00000000003E7000-memory.dmp	upx
behavioral2/files/0x0007000000023354-12.dat	upx
behavioral2/files/0x000a00000002346c-29.dat	upx
behavioral2/memory/4132-32-0x00000000002A0000-0x00000000002B7000-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"	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.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	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.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	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3836	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe
Token: SeDebugPrivilege	4132	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4132	3836	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe	86
PID 3836 wrote to memory of 4132	3836	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe	86
PID 3836 wrote to memory of 4132	3836	e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe	86

C:\Users\Admin\AppData\Local\Temp\e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.exe
"C:\Users\Admin\AppData\Local\Temp\e45f1f223c96890edce351a786cf6c06372a19644c66dae313e9f6d3ede09b28.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:3836
- 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:4132

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
56d119465ecb4bbb18df0d4d78fbf3c6

SHA1
bb57758f7765b6d5ca867a2c229d431baa6ded83

SHA256
a4cb0a21621984a6da4a0eff9ec42c42cc06d4fa61b5b0053429e35f495d60af

SHA512
1a964d29e3d091a0edface0b20f77ecdeac922fa2e8eba363a7d0163c2810caa988d48b81ba1db0a4a0bbd5d5f98feec498b97c751a18b8a5ad067c791a7b628

Download Submit
C:\Users\Admin\AppData\Local\Temp\Bdq2n2eaDgT8Uzb.exe

Filesize
239KB

MD5
dbaa49176b56e96ffc8d537d2bea85e1

SHA1
acf8224d1f18b97f345e1f4f16f7f78eedc9836b

SHA256
927ed2bf333a155f00fcae3a419007abc41e600f37efa2b15e6e8d4405977968

SHA512
d4185d920add7387f0dd9dc64734157761bfafc060bcb5d158526f001e8c893ae3ce736a2f62f5539e3604b0af084c91ed33012227229f824ba84839b1fdef5a

Download Submit
C:\Windows\CTS.exe

Filesize
28KB

MD5
e6150447c894ade7b2b9ee88d5933922

SHA1
dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

SHA256
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

SHA512
d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

Download Submit
memory/3836-0-0x00000000003D0000-0x00000000003E7000-memory.dmp

Filesize
92KB

Download
memory/3836-7-0x00000000003D0000-0x00000000003E7000-memory.dmp

Filesize
92KB

Download
memory/4132-8-0x00000000002A0000-0x00000000002B7000-memory.dmp

Filesize
92KB

Download
memory/4132-32-0x00000000002A0000-0x00000000002B7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads