d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 04:31

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General

Target

d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe
Size

27KB
MD5

8a2229063faf7e0e7771817b21a8d605
SHA1

0423780da80d35013f66c0c08af9d03bae7c6e94
SHA256

d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265
SHA512

7db67aead1b32d759c75529984708d957b36c54d6c19107afbf39d1e18659f25c422931a08448cf431dcddfe5a6aff9f77ba6fd5dd15d65b1fcde3fe7f996e05
SSDEEP

768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCMy:N5VzcfA/6LrVpL74gfh16ny

Score

9^/10

persistence spyware stealer upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/memory/4832-0-0x0000000000CF0000-0x0000000000D08000-memory.dmp	UPX
behavioral2/files/0x0007000000023421-9.dat	UPX
behavioral2/memory/4832-8-0x0000000000CF0000-0x0000000000D08000-memory.dmp	UPX
behavioral2/memory/3200-10-0x0000000000950000-0x0000000000968000-memory.dmp	UPX
behavioral2/files/0x000b0000000162a7-13.dat	UPX
behavioral2/files/0x000600000002327d-31.dat	UPX

Executes dropped EXE 1 IoCs

pid	Process
3200	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
behavioral2/memory/4832-0-0x0000000000CF0000-0x0000000000D08000-memory.dmp	upx
behavioral2/files/0x0007000000023421-9.dat	upx
behavioral2/memory/4832-8-0x0000000000CF0000-0x0000000000D08000-memory.dmp	upx
behavioral2/memory/3200-10-0x0000000000950000-0x0000000000968000-memory.dmp	upx
behavioral2/files/0x000b0000000162a7-13.dat	upx
behavioral2/files/0x000600000002327d-31.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"	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.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	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe
Token: SeDebugPrivilege	3200	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 3200	4832	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe	83
PID 4832 wrote to memory of 3200	4832	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe	83
PID 4832 wrote to memory of 3200	4832	d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe	83

C:\Users\Admin\AppData\Local\Temp\d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe
"C:\Users\Admin\AppData\Local\Temp\d385358cdcdc02a55682f4c3bbb9054784672c161f28ea7e7415b771dffa2265.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4832
- 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:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

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
4a59472b9ddffc5b3bdf2c72f34229c3

SHA1
1bb44998c2ab6556cf76e74cce7b7bb61d4ae059

SHA256
7d8f2cea3f8fdba9b87aa37caba279b984f3a101c2c67bfc3117454244298d2a

SHA512
2d2babf5f600cd5aab92b19cd406d649113dd411576d824583d62f3e64123aa4f2683030c9acd2ba9fd3063bfca414754b26740cef6d043446f0e733151e0695

Download Submit
C:\Users\Admin\AppData\Local\Temp\xPMQvMcuSZ0O26j.exe

Filesize
27KB

MD5
9c07bca3fc5dd65a3e75b831063d5e8b

SHA1
58aa265983f0d98041d221421353b81833b78cf9

SHA256
30d7b5bafe02023b0963fd34bc41871eca64b7dd5f09c6e50b5ab0c6b1c3d719

SHA512
c22a5f542444324a7257b9396ea79831b9a29dce110079b17e9028308e597aba5c07c35101329fa93f977867bc25f26f63dd59f85a622cab4fbd98dd8b2fa060

Download Submit
C:\Windows\CTS.exe

Filesize
27KB

MD5
a6749b968461644db5cc0ecceffb224a

SHA1
2795aa37b8586986a34437081351cdd791749a90

SHA256
720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2

SHA512
2a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4

Download Submit
memory/3200-10-0x0000000000950000-0x0000000000968000-memory.dmp

Filesize
96KB

Download
memory/4832-0-0x0000000000CF0000-0x0000000000D08000-memory.dmp

Filesize
96KB

Download
memory/4832-8-0x0000000000CF0000-0x0000000000D08000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads