echelon | 4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563

General

Target
4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe
Size 821KB
Sample240120-bf5ttaggfm
SHA256 4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563
MD5 ecdff1026e3fde10bfbd1eec8fc56df7
SHA1 582f980152c469de53aeb7230951ebb79f0e7056
SHA512 8b3e19d03fc9f4e336b999f8e261ea7ad4d652a9e28f254cce3ded41fbab32999b9682f68f0ee65ae6ddb4ca072a783487426f5070ada938b5ddd91d7a7f1e6d
SSDEEP 12288:jBdlwHRn+WlYV+8T+tk8z9qnwb6XMMA4pZ8KGuLbAovtau1PtjLxuWRtb:jBkVdlYAK2qnvXMGpy0L8OJPjQqtb
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

echelon collection discovery evasion spyware stealer

Malware Config

Signatures

Detects Echelon Stealer payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e582-19.dat	family_echelon
behavioral2/memory/3752-21-0x00000272479F0000-0x0000027247A8A000-memory.dmp	family_echelon

Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
stealer spyware echelon
Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Checks computer location settings 2 TTPs 3 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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	Echelon.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	Echelon.sfx.exe

Executes dropped EXE 2 IoCs

pid	Process
3868	Echelon.sfx.exe
3752	Echelon.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe
Key opened	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe
Key opened	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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
11	api.ipify.org
27	ip-api.com

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3808	sc.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3752	Echelon.exe
3752	Echelon.exe
3752	Echelon.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3752	Echelon.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 3868	4956	4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe	89
PID 4956 wrote to memory of 3868	4956	4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe	89
PID 4956 wrote to memory of 3868	4956	4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe	89
PID 3868 wrote to memory of 3752	3868	Echelon.sfx.exe	91
PID 3868 wrote to memory of 3752	3868	Echelon.sfx.exe	91
PID 3752 wrote to memory of 4412	3752	Echelon.exe	94
PID 3752 wrote to memory of 4412	3752	Echelon.exe	94
PID 4412 wrote to memory of 3808	4412	cmd.exe	95
PID 4412 wrote to memory of 3808	4412	cmd.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe

C:\Users\Admin\AppData\Local\Temp\4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe
"C:\Users\Admin\AppData\Local\Temp\4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Echelon.sfx.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Echelon.sfx.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3868
- - C:\Users\Admin\AppData\Local\Temp\RarSFX1\Echelon.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX1\Echelon.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - outlook_office_path
    - outlook_win_path
    PID:3752
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4412
    - - C:\Windows\system32\sc.exe
        
        sc stop "MpsSvc"
        5⤵
        Launches sc.exe
        
        PID:3808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

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Downloads

Echelon.sfx.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\Echelon.sfx.exe
Size 649KB
SHA256 4d02168925f891eba820a3d8050fdf7a3de7ddd9a3aabb529dfa45ae6e540f79
MD5 d87dbaf2295af3f2f55f7ca333b4668f
SHA1 95aa151d52ce3174d4d0e909c8e14e8373e4506a
SHA512 992b8d780758003e237e5c4c3b8eb9cd5276f79965d58976ce0b93128a95346927ee122294b8dea2c8f46aea4b7ab46c916099fbf60b15cc4987dec34217d0a3
SSDEEP 12288:jBdlwHRn+WlYV+8T+tkU5bw6g8h+Y409dMCZyH0FVI8QV:jBkVdlYAK23FNZyHf8QV
MD5 SHA1 SHA512 SSDEEP

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Echelon.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX1\Echelon.exe
Size 592KB
SHA256 818d899f97b141d991937b1d39936ead0a845022ea685c7e83aef1fd55838033
MD5 a6c5e33747f3087b1f1c96d5c800aa99
SHA1 d3e400f79fb0520deca6eaf52ac030eadec98a71
SHA512 5339057ce8126bb5fc1c4a2115b4887533761ed5cb54976ec8b2087abf6a4602012cc939c04876a3cbf10ed270b100ee55b20fdecae51fa6952194ee2900fdb8
SSDEEP 12288:2ZhhKDNUUA7ZLJLUf9snBS4csPYae6qfzRAA:2ZCxUF7hhUF54clNf7RB
MD5 SHA1 SHA512 SSDEEP

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memory/3752-21-0x00000272479F0000-0x0000027247A8A000-memory.dmp

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memory/3752-22-0x00007FF8F5490000-0x00007FF8F5F51000-memory.dmp

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memory/3752-23-0x0000027262020000-0x0000027262030000-memory.dmp

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memory/3752-24-0x00000272630E0000-0x0000027263156000-memory.dmp

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memory/3752-56-0x00007FF8F5490000-0x00007FF8F5F51000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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