echelon | 423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a

Analysis

max time kernel
142s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2023 01:55

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General

Target

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
Size

4.3MB
MD5

eea9f6b6d6e5a3b42567b41468318510
SHA1

fdcc3363c7e3c50ae18ff3daa8fea0be707f0542
SHA256

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a
SHA512

b11824772d183cd829ef4177d7932062e15a1db9f64ce60b63aacee18187c0148a1b7ff3badf335efcb955d254719426e427cfe4ce4ed3448f4314fbc7553518
SSDEEP

98304:j9ZY7XPEKa3Ob0B/9GNwC8JXB6FWsO9SD0agC4aLF:mX51bU99htV9SDA0LF

Score

10^/10

echelon collection discovery evasion spyware stealer themida trojan

Malware Config

Signatures

Detects Echelon Stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2316-11-0x00000000002B0000-0x0000000000CA6000-memory.dmp	family_echelon
behavioral2/memory/2316-12-0x00000000002B0000-0x0000000000CA6000-memory.dmp	family_echelon
behavioral2/memory/2316-50-0x00000000002B0000-0x0000000000CA6000-memory.dmp	family_echelon

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.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

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2316-11-0x00000000002B0000-0x0000000000CA6000-memory.dmp	themida
behavioral2/memory/2316-12-0x00000000002B0000-0x0000000000CA6000-memory.dmp	themida
behavioral2/memory/2316-50-0x00000000002B0000-0x0000000000CA6000-memory.dmp	themida

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
Key opened	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
Key opened	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

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
27	api.ipify.org
28	api.ipify.org
33	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

pid	Process
2316	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4324	2316	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

pid	Process
2316	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
2316	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	pid	Process
Token: SeDebugPrivilege	2316	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

outlook_office_path 1 IoCs

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

outlook_win_path 1 IoCs

Processes:

423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe

C:\Users\Admin\AppData\Local\Temp\423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe
"C:\Users\Admin\AppData\Local\Temp\423302423f88c1ed6e85a061e33376e395303f81a8e6ffa06024343e6270144a.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 2876
  2⤵
  - Program crash
  PID:4324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2316 -ip 2316
1⤵
PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2316-0-0x00000000002B0000-0x0000000000CA6000-memory.dmp

Filesize
10.0MB

Download
memory/2316-1-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-2-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-3-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-4-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-5-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-6-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-7-0x0000000076F44000-0x0000000076F46000-memory.dmp

Filesize
8KB

Download
memory/2316-11-0x00000000002B0000-0x0000000000CA6000-memory.dmp

Filesize
10.0MB

Download
memory/2316-12-0x00000000002B0000-0x0000000000CA6000-memory.dmp

Filesize
10.0MB

Download
memory/2316-13-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/2316-17-0x00000000002B0000-0x0000000000CA6000-memory.dmp

Filesize
10.0MB

Download
memory/2316-18-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-19-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-20-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-35-0x0000000007250000-0x00000000072E2000-memory.dmp

Filesize
584KB

Download
memory/2316-36-0x00000000078A0000-0x0000000007E44000-memory.dmp

Filesize
5.6MB

Download
memory/2316-39-0x00000000072F0000-0x000000000738C000-memory.dmp

Filesize
624KB

Download
memory/2316-45-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download
memory/2316-50-0x00000000002B0000-0x0000000000CA6000-memory.dmp

Filesize
10.0MB

Download
memory/2316-51-0x0000000074ED0000-0x0000000074FC0000-memory.dmp

Filesize
960KB

Download