echelon | 7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948

General

Target
7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe
Size 4.1MB
Sample220309-czfjpsfbhl
SHA256 7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948
MD5 79112cb6a47b53ae2844d502f0a5d7c2
SHA1 43509a0719409190eb27e962d07b8099258cc816
SHA512 6c63acc37f3ab9dfa66d0d44f8edb0b2ea71a7224055936e5db2e64eb8a037bbea8aeb16b4f3182e4ff40fb8fc786346be0fd82ac51ba874431b08f0de5990c4
MD5 SHA1 SHA512

Score

10^/10

echelon collection discovery persistence spyware stealer

Malware Config

Signatures

Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
stealer spyware echelon

Echelon log file 1 IoCs

Detects a log file produced by Echelon.

yara_rule
echelon_log_file

Executes dropped EXE 2 IoCs

pid	Process
3808	CDS.exe
2312	crypted.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	CDS.exe

Loads dropped DLL 1 IoCs

pid	Process
3808	CDS.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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	crypted.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	crypted.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	crypted.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	ip-api.com
13	api.ipify.org
14	api.ipify.org

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2312	crypted.exe
2312	crypted.exe
3808	CDS.exe
3808	CDS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: 33	1320	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1320	AUDIODG.EXE
Token: SeDebugPrivilege	2312	crypted.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3808	CDS.exe
3808	CDS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 3808	3616	7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe	81
PID 3616 wrote to memory of 3808	3616	7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe	81
PID 3616 wrote to memory of 3808	3616	7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe	81
PID 3808 wrote to memory of 2312	3808	CDS.exe	83
PID 3808 wrote to memory of 2312	3808	CDS.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	crypted.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	crypted.exe

C:\Users\Admin\AppData\Local\Temp\7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe
"C:\Users\Admin\AppData\Local\Temp\7082302ceee9e84632ae16a2e3b44747e24424748086f522b6303e4bca9e4948.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3616
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
    "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2312