echelon | 14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097

General

Target

14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe
Size

4.1MB
MD5

fe7cd92b40ea9ebf51959a1b919a20d7
SHA1

73bfb575f745c52915fe31fb2e6a2232d5552bdd
SHA256

14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097
SHA512

2dc856319e9b716e7dbe96051b19128d478ae333411e0d68c13400d02aef69e63006dcfc5640716f9f3a35310184b8a53ef451af411c9f7a9c168bad17d4a9f0

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
3712	CDS.exe
3232	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
3712	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	14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.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\\\""	14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.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
9	api.ipify.org
10	api.ipify.org
11	ip-api.com

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
3232	crypted.exe
3232	crypted.exe
3712	CDS.exe
3712	CDS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: 33	1352	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1352	AUDIODG.EXE
Token: SeDebugPrivilege	3232	crypted.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3712	CDS.exe
3712	CDS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 3712	1708	14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe	79
PID 1708 wrote to memory of 3712	1708	14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe	79
PID 1708 wrote to memory of 3712	1708	14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe	79
PID 3712 wrote to memory of 3232	3712	CDS.exe	81
PID 3712 wrote to memory of 3232	3712	CDS.exe	81

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\14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe
"C:\Users\Admin\AppData\Local\Temp\14e6a9a5cdf93f21bf9a399a2578646628283e18203db77f1683415a690bf097.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1708
- 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:3712
- - 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:3232

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4f8 0x240
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1352

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3232-140-0x00000000008A0000-0x00000000009C8000-memory.dmp

Filesize
1.2MB

Download
memory/3232-142-0x000000001B490000-0x000000001B492000-memory.dmp

Filesize
8KB

Download
memory/3232-141-0x00007FFA9D680000-0x00007FFA9E141000-memory.dmp

Filesize
10.8MB

Download
memory/3232-143-0x000000001CB30000-0x000000001CB52000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing