agenttesla | 5e36e0d8183dc5620f5f21b9192e4bd359fa03169e429ed4b569a603b85e921c

General

Target

revised PI.exe
Size

390KB
MD5

3194620f4034331c79d5d0dfc6023776
SHA1

6f8d397158da9347587bccfb356af3def94ef892
SHA256

eafe80f90a3a9a02cea6165309b01aab3ab9b7eab9401342b665e8fdefc65869
SHA512

3c88c05602d5c82a37c1447db0fe9e08719e399fc2a9d1f29e3838114f4a35824b30c7467ff54144d7a19b7c69d56f2140a67a373594698b86a73317733ecab5

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
1xH}wgu7}f%E

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/1952-59-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1952-60-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1952-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1952-62-0x000000000044A81E-mapping.dmp	family_agenttesla
behavioral1/memory/1952-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1952-66-0x0000000000400000-0x0000000000450000-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:

revised PI.exe

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

revised PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	revised PI.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	revised PI.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	revised PI.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:

revised PI.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

revised PI.exe

description pid process target process

PID 1756 set thread context of 1952 1756 revised PI.exe revised PI.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

revised PI.exerevised PI.exe

pid process

1756 revised PI.exe
1952 revised PI.exe
1952 revised PI.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

revised PI.exe

pid process

1952 revised PI.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

revised PI.exerevised PI.exe

description pid process

Token: SeDebugPrivilege 1756 revised PI.exe
Token: SeDebugPrivilege 1952 revised PI.exe

description	pid	process	target process
PID 1756 set thread context of 1952	1756	revised PI.exe	revised PI.exe

pid	process
1756	revised PI.exe
1952	revised PI.exe
1952	revised PI.exe

pid	process
1952	revised PI.exe

description	pid	process
Token: SeDebugPrivilege	1756	revised PI.exe
Token: SeDebugPrivilege	1952	revised PI.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

revised PI.exerevised PI.exe

description	pid	process	target process
PID 1756 wrote to memory of 1992	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1992	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1992	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1992	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1756 wrote to memory of 1952	1756	revised PI.exe	revised PI.exe
PID 1952 wrote to memory of 1328	1952	revised PI.exe	netsh.exe
PID 1952 wrote to memory of 1328	1952	revised PI.exe	netsh.exe
PID 1952 wrote to memory of 1328	1952	revised PI.exe	netsh.exe
PID 1952 wrote to memory of 1328	1952	revised PI.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

revised PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	revised PI.exe

outlook_win_path 1 IoCs

Processes:

revised PI.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	revised PI.exe

C:\Users\Admin\AppData\Local\Temp\revised PI.exe
"C:\Users\Admin\AppData\Local\Temp\revised PI.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:1756

C:\Users\Admin\AppData\Local\Temp\revised PI.exe
"{path}"
2⤵
PID:1992

C:\Users\Admin\AppData\Local\Temp\revised PI.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1952

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1328

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/1328-69-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1756-55-0x0000000074590000-0x0000000074B3B000-memory.dmp

Filesize
5.7MB

Download
memory/1952-56-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-57-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-62-0x000000000044A81E-mapping.dmp

Download
memory/1952-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1952-68-0x0000000074520000-0x0000000074ACB000-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