4e67b597067aeb29e1e354399bdfa4c5f7258b39b12e8341e1189c720a48a894

General

Target

ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
Size

41KB
MD5

f1c8e3c3b1dd7ff8cd45454555d96b5f
SHA1

ede4ac347515f54680834918736c04af85e5ef19
SHA256

ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a
SHA512

710ebe17bbf5c4a9349a7cbe75c0cf308ccdd84784ed8455056e2f8aafd7dbe4381da10d7b07a68dee4b48acf37828deed18253559a2763e7abb49b0465f0349
SSDEEP

768:eyX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom++3zR2/vpKH34iXXm:egKcR4mjD9r829b3925QW

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1300	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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1916-1-0x0000000000900000-0x0000000000917000-memory.dmp	upx
behavioral1/files/0x0006000000018f8e-7.dat	upx
behavioral1/memory/1300-11-0x00000000003B0000-0x00000000003C7000-memory.dmp	upx
behavioral1/memory/1916-9-0x0000000000900000-0x0000000000917000-memory.dmp	upx
behavioral1/files/0x0004000000017801-13.dat	upx
behavioral1/memory/1300-64-0x00000000003B0000-0x00000000003C7000-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"	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.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	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1916	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
Token: SeDebugPrivilege	1300	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1300	1916	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	30
PID 1916 wrote to memory of 1300	1916	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	30
PID 1916 wrote to memory of 1300	1916	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	30
PID 1916 wrote to memory of 1300	1916	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	30

C:\Users\Admin\AppData\Local\Temp\ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
"C:\Users\Admin\AppData\Local\Temp\ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.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:1916
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1300

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\Temp\0OwpJlAVyP2KWCd.exe

Filesize
41KB

MD5
88b126d1c66cf316d352eec6a548dea4

SHA1
64157dcbe53d576d2ffafae2d7f7316f5ea25f67

SHA256
564d3e44f09aaeddf6b774ba4f6daec7eadcbd658bbf994c111e88e5ddcd1efb

SHA512
6cb6ffc1b0874aa28816890d5c8623eebd9e9ed927de8bc71af701dd9e75ba6f35deac35a308c72c30f48baed48e08d55e8234c7a774bcc850be5cf9db102a4e

Download Submit
C:\Windows\CTS.exe

Filesize
28KB

MD5
e6150447c894ade7b2b9ee88d5933922

SHA1
dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

SHA256
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

SHA512
d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

Download Submit
memory/1300-11-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/1300-64-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/1916-1-0x0000000000900000-0x0000000000917000-memory.dmp

Filesize
92KB

Download
memory/1916-9-0x0000000000900000-0x0000000000917000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads