agenttesla | 6c9c4ea1b70b21cc86cedaef25d0fd69f7bdd44c4596dc5246f80376d2edd390

General

Target

Enquiry.exe
Size

401KB
MD5

c6bfb4a00c7988a677c19c0f17937855
SHA1

07ca99213270bf82c1b90b06a1f990c363a3440c
SHA256

d97d1614a199d784c0697ff01eff3e4d195dd07e65879a59b3b805d2088ad8a9
SHA512

e79a72cfcfb9e735150b498540f3d9d088491dfa8beef41c2a9d6744d86c68ba4955a21031bbf26437caed1c50df81bd5079e8e755e2842d1d34673c825c3b51

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lotusgrandhotel.ae
Port:
587
Username:
[email protected]
Password:
Fbm@Lotusgrand

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/996-60-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/996-59-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/996-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/996-62-0x000000000044777E-mapping.dmp	family_agenttesla
behavioral1/memory/996-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/996-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 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:

Enquiry.exe

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

Enquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Enquiry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Enquiry.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Enquiry.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Enquiry.exe

description pid process target process

PID 1668 set thread context of 996 1668 Enquiry.exe Enquiry.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Enquiry.exe

pid process

996 Enquiry.exe
996 Enquiry.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Enquiry.exe

description pid process

Token: SeDebugPrivilege 996 Enquiry.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Enquiry.exe

pid process

996 Enquiry.exe

description	pid	process	target process
PID 1668 set thread context of 996	1668	Enquiry.exe	Enquiry.exe

pid	process
996	Enquiry.exe
996	Enquiry.exe

description	pid	process
Token: SeDebugPrivilege	996	Enquiry.exe

pid	process
996	Enquiry.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Enquiry.exe

description	pid	process	target process
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe
PID 1668 wrote to memory of 996	1668	Enquiry.exe	Enquiry.exe

outlook_office_path 1 IoCs

Processes:

Enquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

outlook_win_path 1 IoCs

Processes:

Enquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1668

C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:996

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/996-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-62-0x000000000044777E-mapping.dmp

Download
memory/996-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/996-68-0x0000000074C40000-0x00000000751EB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-54-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/1668-55-0x0000000074C40000-0x00000000751EB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads