agenttesla | aebaa928a7a6afebed8a60d6d37f06c8bcb9af2b2eea0f94ba041fec9beec10c

General

Target

enquiry.exe
Size

436KB
MD5

8c55b8fb78847c74c2dbbebe321314d0
SHA1

60325625c9418917ba79a12060b3855eb739c7ca
SHA256

90c6b56f55742297280258483cd14c0d92575ba6692f9662a0282bb60eae089a
SHA512

e356157109c89fa9d60e9f11a2d36f4f60811e9d54d4710de561187f6882b8d6c2a714ab0f3d139ed79154702f38ffc3352dbea8e99f13ef6f225c5a201d71a7

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/1112-59-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1112-60-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1112-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1112-62-0x000000000044777E-mapping.dmp	family_agenttesla
behavioral1/memory/1112-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1112-66-0x0000000000400000-0x000000000044C000-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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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 1596 set thread context of 1112 1596 enquiry.exe enquiry.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

enquiry.exeenquiry.exe

pid process

1596 enquiry.exe
1596 enquiry.exe
1112 enquiry.exe
1112 enquiry.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

enquiry.exeenquiry.exe

description pid process

Token: SeDebugPrivilege 1596 enquiry.exe
Token: SeDebugPrivilege 1112 enquiry.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

enquiry.exe

pid process

1112 enquiry.exe

description	pid	process	target process
PID 1596 set thread context of 1112	1596	enquiry.exe	enquiry.exe

pid	process
1596	enquiry.exe
1596	enquiry.exe
1112	enquiry.exe
1112	enquiry.exe

description	pid	process
Token: SeDebugPrivilege	1596	enquiry.exe
Token: SeDebugPrivilege	1112	enquiry.exe

pid	process
1112	enquiry.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

enquiry.exe

description	pid	process	target process
PID 1596 wrote to memory of 1248	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1248	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1248	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1248	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1780	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1780	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1780	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1780	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe
PID 1596 wrote to memory of 1112	1596	enquiry.exe	enquiry.exe

outlook_office_path 1 IoCs

Processes:

enquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596

C:\Users\Admin\AppData\Local\Temp\enquiry.exe
"{path}"
2⤵
PID:1248

C:\Users\Admin\AppData\Local\Temp\enquiry.exe
"{path}"
2⤵
PID:1780

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:1112

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1112-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-62-0x000000000044777E-mapping.dmp

Download
memory/1112-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1112-68-0x0000000074E90000-0x000000007543B000-memory.dmp

Filesize
5.7MB

Download
memory/1596-54-0x0000000075E31000-0x0000000075E33000-memory.dmp

Filesize
8KB

Download
memory/1596-55-0x0000000074EA0000-0x000000007544B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads