echelon | 3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b

Analysis

max time kernel
56s
max time network
138s
platform
windows7_x64
resource
win7-20220414-en
submitted
25-05-2022 00:20

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General

Target

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
Size

3.9MB
MD5

ed97eae657fb64e41b66be70ef77c9a9
SHA1

04e771a749ce2a593130b7e5663fa2a85157e9a0
SHA256

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b
SHA512

339563dc9ab3a92e3c253e1be1acb25af982e9783519bbb50f3f260f1cd6e79d71aff855d47fa523318b720bdece4db3e61ce68132155eb9bf75b7045dac74ab

Score

10^/10

echelon bootkit collection discovery evasion persistence spyware stealer trojan

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

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Wine	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.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:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Looks up external IP address via web service 5 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
6	api.ipify.org
7	ip-api.com
9	api.ipify.org
3	api.ipify.org
5	api.ipify.org

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

pid	Process
1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
544	1656	WerFault.exe	17

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

pid	Process
1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	pid	Process
Token: SeDebugPrivilege	1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	pid	Process	procid_target
PID 1656 wrote to memory of 544	1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe	29
PID 1656 wrote to memory of 544	1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe	29
PID 1656 wrote to memory of 544	1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe	29
PID 1656 wrote to memory of 544	1656	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe	29

outlook_office_path 1 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

outlook_win_path 1 IoCs

Processes:

3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe

C:\Users\Admin\AppData\Local\Temp\3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe
"C:\Users\Admin\AppData\Local\Temp\3a61e234ba93ea14a976c3664d0d5bd922c15f34365f139a0e7644ed983a4f5b.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1512
  2⤵
  - Program crash
  PID:544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

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/544-59-0x0000000000000000-mapping.dmp

Download
memory/1656-54-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1656-56-0x00000000774E0000-0x0000000077660000-memory.dmp

Filesize
1.5MB

Download
memory/1656-57-0x0000000000180000-0x0000000000AA8000-memory.dmp

Filesize
9.2MB

Download
memory/1656-58-0x0000000000180000-0x0000000000AA8000-memory.dmp

Filesize
9.2MB

Download