echelon | b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3

General

Target

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
Size

1.5MB
MD5

fe7c13445868482b63e1ae71bca9d150
SHA1

78111d52ba0215bb531d487bc6e9a218ea768377
SHA256

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3
SHA512

c1a2bc27e1381f6ed142ffb8a6cdb0006a9161433dbb9222f83ec407cf0bb5510f9986108b4e96c4a3d0dd30659cc48baec96b9ca962082c64c0fcbcc8c0879c

Score

10^/10

echelon collection discovery 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:

Decoder.exesystems32.exe

pid process

548 Decoder.exe
26520 systems32.exe

yara_rule
echelon_log_file

pid	process
548	Decoder.exe
26520	systems32.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exeDecoder.exesystems32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Decoder.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	systems32.exe

Drops startup file 2 IoCs

Processes:

Decoder.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windows driver update.exe	Decoder.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windows driver update.exe	Decoder.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:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.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

22 api.ipify.org
23 api.ipify.org
28 ip-api.com

flow	ioc
22	api.ipify.org
23	api.ipify.org
28	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

pid	process
4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

4896 schtasks.exe
27344 schtasks.exe
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

2248 timeout.exe
2016 timeout.exe

pid	process
4896	schtasks.exe
27344	schtasks.exe

pid	process
2248	timeout.exe
2016	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exeDecoder.exesystems32.exe

pid	process
4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
548	Decoder.exe
26520	systems32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exeDecoder.exesystems32.exe

description	pid	process
Token: SeDebugPrivilege	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
Token: SeDebugPrivilege	548	Decoder.exe
Token: SeDebugPrivilege	26520	systems32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

pid process

4576 b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.execmd.execmd.exeDecoder.exesystems32.exe

description	pid	process	target process
PID 4576 wrote to memory of 548	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	Decoder.exe
PID 4576 wrote to memory of 548	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	Decoder.exe
PID 4576 wrote to memory of 176	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 4576 wrote to memory of 176	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 4576 wrote to memory of 176	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 4576 wrote to memory of 4208	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 4576 wrote to memory of 4208	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 4576 wrote to memory of 4208	4576	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe	cmd.exe
PID 176 wrote to memory of 2248	176	cmd.exe	timeout.exe
PID 176 wrote to memory of 2248	176	cmd.exe	timeout.exe
PID 176 wrote to memory of 2248	176	cmd.exe	timeout.exe
PID 4208 wrote to memory of 2016	4208	cmd.exe	timeout.exe
PID 4208 wrote to memory of 2016	4208	cmd.exe	timeout.exe
PID 4208 wrote to memory of 2016	4208	cmd.exe	timeout.exe
PID 548 wrote to memory of 4896	548	Decoder.exe	schtasks.exe
PID 548 wrote to memory of 4896	548	Decoder.exe	schtasks.exe
PID 26520 wrote to memory of 27344	26520	systems32.exe	schtasks.exe
PID 26520 wrote to memory of 27344	26520	systems32.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

outlook_win_path 1 IoCs

Processes:

b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe

C:\Users\Admin\AppData\Local\Temp\b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe
"C:\Users\Admin\AppData\Local\Temp\b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3.exe"
1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4576

C:\ProgramData\Decoder.exe
"C:\ProgramData\Decoder.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:548

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
3⤵
- Creates scheduled task(s)
PID:4896

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
2⤵
- Suspicious use of WriteProcessMemory
PID:176

C:\Windows\SysWOW64\timeout.exe
timeout 4
3⤵
- Delays execution with timeout.exe
PID:2248

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D76.tmp.cmd""
2⤵
- Suspicious use of WriteProcessMemory
PID:4208

C:\Windows\SysWOW64\timeout.exe
timeout 4
3⤵
- Delays execution with timeout.exe
PID:2016

C:\systems32_bit\systems32.exe
\systems32_bit\systems32.exe
1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:26520

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
2⤵
- Creates scheduled task(s)
PID:27344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Decoder.exe
Filesize
39KB

MD5
e753a9a4c3a393d9eccc31e5c6aded66

SHA1
5501ae71598925711dbee54f6ee1c827dd01d845

SHA256
52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

SHA512
ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

Download Submit
C:\ProgramData\Decoder.exe
Filesize
39KB

MD5
e753a9a4c3a393d9eccc31e5c6aded66

SHA1
5501ae71598925711dbee54f6ee1c827dd01d845

SHA256
52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

SHA512
ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

Download Submit
C:\Users\Admin\AppData\Local\Temp\.cmd
Filesize
85B

MD5
73712247036b6a24d16502c57a3e5679

SHA1
65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

SHA256
8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

SHA512
548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3D76.tmp.cmd
Filesize
131B

MD5
4fb4a80941d5a8acdd721ff333023939

SHA1
c5cae850eba266c87f7cd32f39572a3d024ebbcd

SHA256
373dac231d9214f27f6ca133e3f03d75a384d207dc12869feac3771ab981505a

SHA512
6f22d3724456be03f7021bc4fcf2bbf1a855fba19309aee514f6f293669a24437698fc014594babf58469dfe95ac06eec15fcd265a43746c299bd7299a16c9d4

Download Submit
C:\systems32_bit\systems32.exe
Filesize
39KB

MD5
e753a9a4c3a393d9eccc31e5c6aded66

SHA1
5501ae71598925711dbee54f6ee1c827dd01d845

SHA256
52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

SHA512
ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

Download Submit
C:\systems32_bit\systems32.exe
Filesize
39KB

MD5
e753a9a4c3a393d9eccc31e5c6aded66

SHA1
5501ae71598925711dbee54f6ee1c827dd01d845

SHA256
52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

SHA512
ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

Download Submit
memory/176-138-0x0000000000000000-mapping.dmp

Download
memory/548-145-0x00007FFABC440000-0x00007FFABCF01000-memory.dmp

Filesize
10.8MB

Download
memory/548-139-0x00000000004C0000-0x00000000004D0000-memory.dmp

Filesize
64KB

Download
memory/548-135-0x0000000000000000-mapping.dmp

Download
memory/2016-144-0x0000000000000000-mapping.dmp

Download
memory/2248-142-0x0000000000000000-mapping.dmp

Download
memory/4208-140-0x0000000000000000-mapping.dmp

Download
memory/4576-134-0x00000000080F0000-0x0000000008694000-memory.dmp

Filesize
5.6MB

Download
memory/4576-133-0x0000000007AA0000-0x0000000007B32000-memory.dmp

Filesize
584KB

Download
memory/4576-130-0x0000000000F60000-0x00000000013AE000-memory.dmp

Filesize
4.3MB

Download
memory/4576-132-0x0000000007760000-0x00000000077FC000-memory.dmp

Filesize
624KB

Download
memory/4576-131-0x00000000062F0000-0x0000000006356000-memory.dmp

Filesize
408KB

Download
memory/4896-146-0x0000000000000000-mapping.dmp

Download
memory/26520-150-0x00007FFABC440000-0x00007FFABCF01000-memory.dmp

Filesize
10.8MB

Download
memory/27344-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads