echelon | 8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a

Analysis

max time kernel
150s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
19-03-2022 11:40

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General

Target

8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe
Size

4.1MB
MD5

551c11dd00eb8e68c22bc71003630d65
SHA1

92a0ec623eddfb649e9bb77bb079fbd867fa9bdc
SHA256

8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a
SHA512

c1a80698893d1313756de7eef9c7b9badf361917d04d803e3bee8172ce45c3da1595326344d026e3f46578b5806951c006dac4ae12230793dca3fc232dc1f26b

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.

Processes:

yara_rule
echelon_log_file

Executes dropped EXE 2 IoCs

Processes:

CDS.execrypted.exe

pid	Process
3628	CDS.exe
5096	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

Processes:

CDS.exe

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

Processes:

CDS.exe

pid	Process
3628	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

Processes:

crypted.exe

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

Processes:

8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe

description	ioc	Process
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\\\""	8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.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.

Processes:

flow	ioc
13	ip-api.com
11	api.ipify.org
12	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

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4688	5096	WerFault.exe	81

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

crypted.exeCDS.exe

pid	Process
5096	crypted.exe
5096	crypted.exe
3628	CDS.exe
3628	CDS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

AUDIODG.EXEcrypted.exe

description	pid	Process
Token: 33	3660	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3660	AUDIODG.EXE
Token: SeDebugPrivilege	5096	crypted.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

CDS.exe

pid	Process
3628	CDS.exe
3628	CDS.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exeCDS.exe

description	pid	Process	procid_target
PID 2752 wrote to memory of 3628	2752	8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe	79
PID 2752 wrote to memory of 3628	2752	8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe	79
PID 2752 wrote to memory of 3628	2752	8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe	79
PID 3628 wrote to memory of 5096	3628	CDS.exe	81
PID 3628 wrote to memory of 5096	3628	CDS.exe	81

outlook_office_path 1 IoCs

Processes:

crypted.exe

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

Processes:

crypted.exe

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\8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe
"C:\Users\Admin\AppData\Local\Temp\8ecc7c023f4f676b4a69fcd2c52c09a14879cebdcfa50f4dd26d8d5357b22a2a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2752
- 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:3628
- - 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:5096
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 5096 -s 2340
      4⤵
      Program crash
      PID:4688

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4ec 0x4f4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3660

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 424 -p 5096 -ip 5096
1⤵
PID:4480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\630_10.png

MD5
340b294efc691d1b20c64175d565ebc7

SHA1
81cb9649bd1c9a62ae79e781818fc24d15c29ce7

SHA256
72566894059452101ea836bbff9ede5069141eeb52022ab55baa24e1666825c9

SHA512
1395a8e175c63a1a1ff459a9dac437156c74299272e020e7e078a087969251a8534f17244a529acbc1b6800a97d4c0abfa3c88f6fcb88423f56dfaae9b49fc3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.cdd

MD5
3e7ecaeb51c2812d13b07ec852d74aaf

SHA1
e9bdab93596ffb0f7f8c65243c579180939acb26

SHA256
e7e942993864e8b18780ef10a415f7b93924c6378248c52f0c96895735222b96

SHA512
635cd5173b595f1905af9eeea65037601cf8496d519c506b6d082662d438c26a1bfe653eaf6edcb117ccf8767975c37ab0238ca4c77574e2706f9b238a15ad4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c.dat

MD5
c17f9c5d16a86030eb0e21d5cab12063

SHA1
0678e03f722b189cc03f9577775fdb1acd75bb0c

SHA256
925dc4b6b795a57db19a7d044ab9ff9f8f581d36fafe5d1eea2b339f4683cb44

SHA512
2ee8692988913907baf0ae56b1a17c1818f0f5923cc772238a899b6c5c8f769f1df6a0c3d5d948eed9dd0ee7c5608ca5531865342732308dc4eca18b8a935d1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

MD5
29644140e6ce05cf06f8b82dd3df20e5

SHA1
9ce7128091462d39c0256cb077e289e3efc5191f

SHA256
ae0005fd66f2b2bcdb34140b2d629d69e79ad5a5050739d279f1eea939f6effb

SHA512
139cf8e9e291d0fe1d6fa004410582efc8cddd34d54c7a3cb2df8377c62847fae0118230b9221e6e371752c91a5de077bd748d03042f5f2ad23e19771436d7e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

MD5
29644140e6ce05cf06f8b82dd3df20e5

SHA1
9ce7128091462d39c0256cb077e289e3efc5191f

SHA256
ae0005fd66f2b2bcdb34140b2d629d69e79ad5a5050739d279f1eea939f6effb

SHA512
139cf8e9e291d0fe1d6fa004410582efc8cddd34d54c7a3cb2df8377c62847fae0118230b9221e6e371752c91a5de077bd748d03042f5f2ad23e19771436d7e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fs.settings

MD5
68934a3e9455fa72420237eb05902327

SHA1
7cb6efb98ba5972a9b5090dc2e517fe14d12cb04

SHA256
fcbcf165908dd18a9e49f7ff27810176db8e9f63b4352213741664245224f8aa

SHA512
719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
memory/5096-140-0x0000000000BF0000-0x0000000000D18000-memory.dmp

Filesize
1.2MB

Download
memory/5096-141-0x00007FFADB5E0000-0x00007FFADC0A1000-memory.dmp

Filesize
10.8MB

Download
memory/5096-142-0x000000001C350000-0x000000001C352000-memory.dmp

Filesize
8KB

Download
memory/5096-143-0x000000001C690000-0x000000001C6B2000-memory.dmp

Filesize
136KB

Download