echelon | cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4

Analysis

max time kernel
91s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/01/2024, 01:02

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General

Target
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe
Size 1.3MB
Sample240120-bdvaasggcm
SHA256 cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4
MD5 e0b4616fb674c5f364deb34f7bc28898
SHA1 0519d146228a11a19e529d18d5c559ecdbbce089
SHA512 e6815572b62d34e366248a1a00657de35f8dc932bb9512f0d1f35ac789fb100fd7ef13066a825fd0f9de9a784b221e4556347564fa8986956b86a2d3fabc39e5
SSDEEP 24576:jBkVdlYAKA/MEj6RVHqnvX842SoypKQgPdI8JSVrDxBNGMZWtv:FsvPhjkK/8nSPpXgl5MrlBNh8tv
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/0x0007000000023251-40.dat	family_echelon
behavioral2/memory/4652-48-0x0000021D86B90000-0x0000021D86C2A000-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 6 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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	Ef.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	Ec.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	Echelo.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	Echelon.sfx.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	Echelon.exe

Executes dropped EXE 5 IoCs

pid	Process
4496	Ef.exe
2256	Ec.exe
1164	Echelo.exe
820	Echelon.sfx.exe
4652	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-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe
Key opened	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe
Key opened	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\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
15	api.ipify.org
24	ip-api.com
13	api.ipify.org

Launches sc.exe 1 IoCs

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

pid	Process
2820	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
4652	Echelon.exe
4652	Echelon.exe
4652	Echelon.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4652	Echelon.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4496	220	cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe	88
PID 220 wrote to memory of 4496	220	cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe	88
PID 220 wrote to memory of 4496	220	cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe	88
PID 4496 wrote to memory of 2256	4496	Ef.exe	91
PID 4496 wrote to memory of 2256	4496	Ef.exe	91
PID 4496 wrote to memory of 2256	4496	Ef.exe	91
PID 2256 wrote to memory of 1164	2256	Ec.exe	92
PID 2256 wrote to memory of 1164	2256	Ec.exe	92
PID 2256 wrote to memory of 1164	2256	Ec.exe	92
PID 1164 wrote to memory of 820	1164	Echelo.exe	93
PID 1164 wrote to memory of 820	1164	Echelo.exe	93
PID 1164 wrote to memory of 820	1164	Echelo.exe	93
PID 820 wrote to memory of 4652	820	Echelon.sfx.exe	94
PID 820 wrote to memory of 4652	820	Echelon.sfx.exe	94
PID 4652 wrote to memory of 2964	4652	Echelon.exe	97
PID 4652 wrote to memory of 2964	4652	Echelon.exe	97
PID 2964 wrote to memory of 2820	2964	cmd.exe	98
PID 2964 wrote to memory of 2820	2964	cmd.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Echelon.exe

C:\Users\Admin\AppData\Local\Temp\cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe
"C:\Users\Admin\AppData\Local\Temp\cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ef.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ef.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Users\Admin\AppData\Local\Temp\RarSFX1\Ec.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX1\Ec.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2256
  - - C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelo.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelo.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1164
    - - C:\Users\Admin\AppData\Local\Temp\RarSFX3\Echelon.sfx.exe
        
        "C:\Users\Admin\AppData\Local\Temp\RarSFX3\Echelon.sfx.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:820
      - C:\Users\Admin\AppData\Local\Temp\RarSFX4\Echelon.exe
        
        "C:\Users\Admin\AppData\Local\Temp\RarSFX4\Echelon.exe"
        6⤵
        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:4652
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:2964
        
        C:\Windows\system32\sc.exe
        
        sc stop "MpsSvc"
        8⤵
        Launches sc.exe
        
        PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

Ef.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ef.exe
Size 1.1MB
SHA256 2bce48850beab2fab1bd1d305c442a50c37e6713b44036bef6518f4d941fd662
MD5 b5c6abc0206d3501b2fe4104ec7bb7cc
SHA1 d767d16a38673ad60759fa67a542ca00a69e18f9
SHA512 a2443a0e8c9a5fc9339fbf161b2aac68d8b82f673046fad964386a636036e68801650cdd311f6b8c616a78bbb5f62429f1b1effd1c1afd41ac17a31d8218ea50
SSDEEP 24576:jBkVdlYAKA1WmEjLT25p2+484mraNt8AgF+3FyUOG0FcCPp:FsvT1m/TYZ1tO8bF+3FyU10OCPp
MD5 SHA1 SHA512 SSDEEP

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Ec.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX1\Ec.exe
Size 995KB
SHA256 94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d
MD5 87e97a6eae614b6337a6d4e51d08a88e
SHA1 7b5381794f91ab6c352e03bd534c818deb5f1d53
SHA512 ed25acd29946a3d41e09d1e46376293cb5e8c2833bf7ec886dec5c45fdba966393ed33895dfb99364fbba6bb98dfdef4b6406d52427a09f06b6373e368b029d0
SSDEEP 24576:jBkVdlYAK0qnvXMGYsHM/Hv5WPDRFN2Hs:FsvOvXMb0D7N2M
MD5 SHA1 SHA512 SSDEEP

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Echelo.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelo.exe
Size 821KB
SHA256 4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563
MD5 ecdff1026e3fde10bfbd1eec8fc56df7
SHA1 582f980152c469de53aeb7230951ebb79f0e7056
SHA512 8b3e19d03fc9f4e336b999f8e261ea7ad4d652a9e28f254cce3ded41fbab32999b9682f68f0ee65ae6ddb4ca072a783487426f5070ada938b5ddd91d7a7f1e6d
SSDEEP 12288:jBdlwHRn+WlYV+8T+tk8z9qnwb6XMMA4pZ8KGuLbAovtau1PtjLxuWRtb:jBkVdlYAK2qnvXMGpy0L8OJPjQqtb
MD5 SHA1 SHA512 SSDEEP

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Echelon.sfx.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX3\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\RarSFX4\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/4652-49-0x00007FFD56B20000-0x00007FFD575E1000-memory.dmp

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memory/4652-50-0x0000021DA11A0000-0x0000021DA11B0000-memory.dmp

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memory/4652-51-0x0000021DA2260000-0x0000021DA22D6000-memory.dmp

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memory/4652-81-0x00007FFD56B20000-0x00007FFD575E1000-memory.dmp

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memory/4652-85-0x0000021DA11A0000-0x0000021DA11B0000-memory.dmp

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memory/4652-86-0x00007FFD56B20000-0x00007FFD575E1000-memory.dmp

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memory/4652-48-0x0000021D86B90000-0x0000021D86C2A000-memory.dmp

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