echelon | a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9 | Triage

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-02-2024 01:29

Sharing

Report Analysis Logs

General

Target

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe
Size

1.1MB
MD5

00dc0ff6987d8dc9651bfc8b9dfa235a
SHA1

7a24a90b470a81af4c67d4488e64728b53c04e91
SHA256

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9
SHA512

aa154bb732cb63df970cb49d62aab412e66ca2415074a118a4101af27507b1b867f07b4eef7fb84667bf6dc627c6a1eea711496d7fa562b20d86ff738230dc92
SSDEEP

12288:1geMBID71CWeVdxB5uRaWmk93sYvBFaXQAT2QEhXbwhjCU+oGnmAudhgIQnGy:1geMBID78l4aW+4iRTCbwhjCTxnmAA

Score

10^/10

echelon collection discovery spyware stealer

Malware Config

Signatures

Detects Echelon Stealer payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2180-0-0x0000000001360000-0x0000000001488000-memory.dmp	family_echelon

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

Email Collection

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.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 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

5 api.ipify.org
6 ip-api.com
8 api.ipify.org
4 api.ipify.org

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

pid	process
2180	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe
2180	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

description pid process

Token: SeDebugPrivilege 2180 a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

description	pid	process	target process
PID 2180 wrote to memory of 1508	2180	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe	WerFault.exe
PID 2180 wrote to memory of 1508	2180	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe	WerFault.exe
PID 2180 wrote to memory of 1508	2180	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

outlook_win_path 1 IoCs

Processes:

a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe

C:\Users\Admin\AppData\Local\Temp\a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe
"C:\Users\Admin\AppData\Local\Temp\a7b4ff991a0932e916f4f4ae6cc1f25d4434202788ffa2e23e9e7ea2e36955e9.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2180

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2180 -s 1768
2⤵
PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\NBuZFL078BFBFF000306D2F804344531\31078BFBFF000306D2F8043445NBuZFL\Browsers\Passwords\Passwords_Edge.txt
Filesize
52B

MD5
fdec4452a98b7d7f3dc83904cd82a724

SHA1
2b447ea859993ab549ee1547c72071e59cace07c

SHA256
59b16ba683aaf821362d2061fef52b52a909ad63be1192ef3d2374f3e8a4b235

SHA512
87a573d8a9a085ffeea49335d213f96cd55385a3afa281d1a4a321043e82cd81a324d1131c764d024966d9dcbcc219d78514b0cdce74f849fe33e0f9ce2df432

Download Submit
memory/2180-0-0x0000000001360000-0x0000000001488000-memory.dmp

Filesize
1.2MB

Download
memory/2180-1-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2180-34-0x000000001C390000-0x000000001C410000-memory.dmp

Filesize
512KB

Download
memory/2180-58-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2180-59-0x000000001C390000-0x000000001C410000-memory.dmp

Filesize
512KB

Download