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
988	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/1600-0-0x0000000000580000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0007000000023485-6.dat	upx
behavioral2/memory/988-7-0x0000000000F90000-0x0000000000FA7000-memory.dmp	upx
behavioral2/memory/1600-10-0x0000000000580000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x0007000000023388-13.dat	upx
behavioral2/files/0x0009000000023420-30.dat	upx
behavioral2/memory/988-35-0x0000000000F90000-0x0000000000FA7000-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 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	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe
Token: SeDebugPrivilege	988	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 988	1600	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	84
PID 1600 wrote to memory of 988	1600	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	84
PID 1600 wrote to memory of 988	1600	ae38766f3cbdf94e66bfbb26e7b448dc00fba3d24730ec74d082dac43eb0732a.exe	84

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:1600
- 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:988

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
351KB

MD5
5eb181a0f828132cb8e9c214a4b7cd72

SHA1
ca1094093f104399975a1138a1fe2a45ba37bccd

SHA256
be135e2e2b51d1d312d6ad5ff7ba9d644e3ec629a81c6a532ac82a96c18dfcb3

SHA512
51ec14be5d4860aa14a242013f717b7f723087f2cd033aaba2a3706add5521dc226976b1aa2ed769313530c6760df1ba5758c6d601a18a5a1134799cf930a166

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

Filesize
41KB

MD5
c687dfde9a150540eba802e74ee47569

SHA1
1e94d24b11a53c88edba0e994a7a25711f3dc14f

SHA256
b051f613dab99679b55d2b4c50ca19265441ab3f082a75937c605365bc0b3d92

SHA512
060df330fe8571719ef324a6cc77f3c0ed5914c30e309b4f6ad430224e794c9c516ba2e17d7407fc6a1fc8c8b6ce741a017d3d2dbbb3bf8fa50cc89f592fe18d

Download Submit
C:\Windows\CTS.exe

Filesize
28KB

MD5
e6150447c894ade7b2b9ee88d5933922

SHA1
dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

SHA256
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

SHA512
d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

Download Submit
memory/988-7-0x0000000000F90000-0x0000000000FA7000-memory.dmp

Filesize
92KB

Download
memory/988-35-0x0000000000F90000-0x0000000000FA7000-memory.dmp

Filesize
92KB

Download
memory/1600-0-0x0000000000580000-0x0000000000597000-memory.dmp

Filesize
92KB

Download
memory/1600-10-0x0000000000580000-0x0000000000597000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads