40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649

General

Target

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe
Size

606KB
MD5

f78631aca9bd9ab5becfb068ee6825df
SHA1

3cc7c5dd9d19ce7f74874f49b24c29fe288ae2c8
SHA256

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649
SHA512

246585388dbf4958e047deebbfc978e621f3da34f5e36f5a1cd34ccb2f264a4c47b4111a6e8c036ab3984ab55183058fc16904c12b13f0329cf483c5c17757e8

Score

8^/10

collection persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

index.exeindex.exe

pid process

2228 index.exe
448 index.exe

pid	process
2228	index.exe
448	index.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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:

index.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	index.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	index.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	index.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\index = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\index.exe -boot"	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

37 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

index.exe

description pid process target process

PID 2228 set thread context of 448 2228 index.exe index.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

index.exe

pid process

448 index.exe
448 index.exe

flow	ioc
37	checkip.dyndns.org

description	pid	process	target process
PID 2228 set thread context of 448	2228	index.exe	index.exe

pid	process
448	index.exe
448	index.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exeindex.exeindex.exe

description	pid	process
Token: SeDebugPrivilege	876	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe
Token: SeDebugPrivilege	2228	index.exe
Token: SeDebugPrivilege	448	index.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

index.exe

pid process

448 index.exe

pid	process
448	index.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exeindex.exe

description	pid	process	target process
PID 876 wrote to memory of 2228	876	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe	index.exe
PID 876 wrote to memory of 2228	876	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe	index.exe
PID 876 wrote to memory of 2228	876	40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe
PID 2228 wrote to memory of 448	2228	index.exe	index.exe

outlook_office_path 1 IoCs

Processes:

index.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	index.exe

outlook_win_path 1 IoCs

Processes:

index.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	index.exe

C:\Users\Admin\AppData\Local\Temp\40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe
"C:\Users\Admin\AppData\Local\Temp\40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:448

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe
Filesize
606KB

MD5
f78631aca9bd9ab5becfb068ee6825df

SHA1
3cc7c5dd9d19ce7f74874f49b24c29fe288ae2c8

SHA256
40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649

SHA512
246585388dbf4958e047deebbfc978e621f3da34f5e36f5a1cd34ccb2f264a4c47b4111a6e8c036ab3984ab55183058fc16904c12b13f0329cf483c5c17757e8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe
Filesize
606KB

MD5
f78631aca9bd9ab5becfb068ee6825df

SHA1
3cc7c5dd9d19ce7f74874f49b24c29fe288ae2c8

SHA256
40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649

SHA512
246585388dbf4958e047deebbfc978e621f3da34f5e36f5a1cd34ccb2f264a4c47b4111a6e8c036ab3984ab55183058fc16904c12b13f0329cf483c5c17757e8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\index.exe
Filesize
606KB

MD5
f78631aca9bd9ab5becfb068ee6825df

SHA1
3cc7c5dd9d19ce7f74874f49b24c29fe288ae2c8

SHA256
40bbbba081d50d4f5662b2539d5622dca1bb4bc9e266b1caf7110bc6819aa649

SHA512
246585388dbf4958e047deebbfc978e621f3da34f5e36f5a1cd34ccb2f264a4c47b4111a6e8c036ab3984ab55183058fc16904c12b13f0329cf483c5c17757e8

Download Submit
memory/448-137-0x0000000000000000-mapping.dmp

Download
memory/448-141-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/448-143-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/876-131-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/876-135-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/876-130-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/2228-132-0x0000000000000000-mapping.dmp

Download
memory/2228-136-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/2228-138-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download
memory/2228-142-0x0000000075080000-0x0000000075631000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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