echelon | e5b6669d36d5bc85497f953c51aac4dfe9d7b5ce1dd9b43e6c26d345eba35948

Analysis

max time kernel
23s
max time network
116s
platform
windows10_x64
resource
win10v20201028
submitted
14-12-2020 13:49

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General

Target

1dfda4abbd51e74613b3ba1677af903e.exe
Size

2.8MB
MD5

1dfda4abbd51e74613b3ba1677af903e
SHA1

ad38064749d2fe61cd643ae285a3908bf8f9de57
SHA256

e5b6669d36d5bc85497f953c51aac4dfe9d7b5ce1dd9b43e6c26d345eba35948
SHA512

0498240682315a996aadba546d64a7036d403fd252f041aac287b60b32a747c0093b0ef5e8d30dad3ac89f12d9ce22b71e8ef676afe5be1b315db3ebe0229687

Score

10^/10

echelon bootkit 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
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:

1dfda4abbd51e74613b3ba1677af903e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1dfda4abbd51e74613b3ba1677af903e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1dfda4abbd51e74613b3ba1677af903e.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:

1dfda4abbd51e74613b3ba1677af903e.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Wine 1dfda4abbd51e74613b3ba1677af903e.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Wine	1dfda4abbd51e74613b3ba1677af903e.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

1dfda4abbd51e74613b3ba1677af903e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1dfda4abbd51e74613b3ba1677af903e.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

9 api.ipify.org
17 ip-api.com
8 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:

1dfda4abbd51e74613b3ba1677af903e.exe

description ioc process

File opened for modification \??\PhysicalDrive0 1dfda4abbd51e74613b3ba1677af903e.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1dfda4abbd51e74613b3ba1677af903e.exe

pid process

3936 1dfda4abbd51e74613b3ba1677af903e.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3512 3936 WerFault.exe 1dfda4abbd51e74613b3ba1677af903e.exe

flow	ioc
9	api.ipify.org
17	ip-api.com
8	api.ipify.org

description	ioc	process
File opened for modification	\??\PhysicalDrive0	1dfda4abbd51e74613b3ba1677af903e.exe

pid	pid_target	process	target process
3512	3936	WerFault.exe	1dfda4abbd51e74613b3ba1677af903e.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

1dfda4abbd51e74613b3ba1677af903e.exeWerFault.exe

pid	process
3936	1dfda4abbd51e74613b3ba1677af903e.exe
3936	1dfda4abbd51e74613b3ba1677af903e.exe
3936	1dfda4abbd51e74613b3ba1677af903e.exe
3936	1dfda4abbd51e74613b3ba1677af903e.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe
3512	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

1dfda4abbd51e74613b3ba1677af903e.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3936	1dfda4abbd51e74613b3ba1677af903e.exe
Token: SeRestorePrivilege	3512	WerFault.exe
Token: SeBackupPrivilege	3512	WerFault.exe
Token: SeDebugPrivilege	3512	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\1dfda4abbd51e74613b3ba1677af903e.exe
"C:\Users\Admin\AppData\Local\Temp\1dfda4abbd51e74613b3ba1677af903e.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 3288
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3512

Network

MITRE ATT&CK Matrix ATT&CK 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

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3512-12-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/3512-13-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/3512-15-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download
memory/3936-3-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download
memory/3936-2-0x0000000004800000-0x0000000004801000-memory.dmp

Filesize
4KB

Download
memory/3936-4-0x00000000731C0000-0x00000000738AE000-memory.dmp

Filesize
6.9MB

Download
memory/3936-5-0x00000000000F0000-0x00000000000F1000-memory.dmp

Filesize
4KB

Download
memory/3936-7-0x0000000006D00000-0x0000000006D01000-memory.dmp

Filesize
4KB

Download
memory/3936-8-0x0000000007D70000-0x0000000007DE0000-memory.dmp

Filesize
448KB

Download
memory/3936-9-0x0000000009050000-0x0000000009051000-memory.dmp

Filesize
4KB

Download
memory/3936-10-0x00000000090F0000-0x00000000090F1000-memory.dmp

Filesize
4KB

Download
memory/3936-11-0x0000000008F40000-0x0000000008F41000-memory.dmp

Filesize
4KB

Download