620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e

General

Target

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
Size

32KB
MD5

2118a903842d656c15a699668bfb65d0
SHA1

27a02894dbd1cdf63293c32644ef524d9ca90d76
SHA256

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e
SHA512

825f019993c7d9ae0cd098183164bd0f77ec54fb0ec1dac973f846b42bfe4b515c7f430c997aca344558b5df0ae155f3edf320929fba0cb417bca4d24c9750a2
SSDEEP

768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCM/sBndzqL:N5VzcfA/6LrVpL74gfh16nG5s

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

CTS.exe

pid process

2388 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

pid	process
2388	CTS.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4384-1-0x0000000000A70000-0x0000000000A88000-memory.dmp	upx
behavioral2/memory/4384-8-0x0000000000A70000-0x0000000000A88000-memory.dmp	upx
C:\Windows\CTS.exe	upx
behavioral2/memory/2388-9-0x0000000000490000-0x00000000004A8000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml	upx
C:\Users\Admin\AppData\Local\Temp\a3VADtfutAwHbN9.exe	upx
behavioral2/memory/2388-33-0x0000000000490000-0x00000000004A8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.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

Processes:

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exe

description	pid	process
Token: SeDebugPrivilege	4384	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
Token: SeDebugPrivilege	2388	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe

description	pid	process	target process
PID 4384 wrote to memory of 2388	4384	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe	CTS.exe
PID 4384 wrote to memory of 2388	4384	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe	CTS.exe
PID 4384 wrote to memory of 2388	4384	620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
"C:\Users\Admin\AppData\Local\Temp\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4384

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:2388

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Filesize
348KB

MD5
4832685363dec115d72ae04eed20e08a

SHA1
3cdc7d28d80e82f0272de123378f4e5061e8526c

SHA256
c7f1f1b6cf47748676ee1361321ac120f09b77e415cb1a1bf10f972c2512d3d1

SHA512
8b16220c7dcf83ac39e5a8c4351cadb70c524337d186bf04aa672af50aa1f10bcde2d99245cdaf064430a60e031bfbeb24b0fe79425002712a4700eb7c8e302a

Download Submit
C:\Users\Admin\AppData\Local\Temp\a3VADtfutAwHbN9.exe
Filesize
32KB

MD5
d5ca06945d530a759fa2ef5c752d3010

SHA1
33ceddd4c9b31d1ad49fb3982eaeb46db3b796ba

SHA256
2b5cef6f927967be6707c539761179d580e9a47c83fea29a8e4d56af782e5253

SHA512
b36018a04a421883a561e8b004a8e898492feed7a0299cbf2b276e6c68bcf97af0bde082d9c8ce165edeca6684e0356e8786ec606bfe2e50f489f9ee66334d16

Download Submit
C:\Windows\CTS.exe
Filesize
27KB

MD5
a6749b968461644db5cc0ecceffb224a

SHA1
2795aa37b8586986a34437081351cdd791749a90

SHA256
720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2

SHA512
2a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4

Download Submit
memory/2388-9-0x0000000000490000-0x00000000004A8000-memory.dmp

Filesize
96KB

Download
memory/2388-33-0x0000000000490000-0x00000000004A8000-memory.dmp

Filesize
96KB

Download
memory/4384-1-0x0000000000A70000-0x0000000000A88000-memory.dmp

Filesize
96KB

Download
memory/4384-8-0x0000000000A70000-0x0000000000A88000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads