agenttesla | b065429c385c4b9a61f28c2797dfff2d70cf21dd5baea137942b17bc13ebe945

General

Target

proponet.exe
Size

394KB
MD5

77fd5a13e3c1bf9e75dbea2453bbe9dc
SHA1

9bcf0ca9cc19140141d243d1a6ebb57a01da5d58
SHA256

e4a95445ff5dddd4211458a130f22eef7295501a4d3bab11b9f13a4f1c689eb1
SHA512

187ee0d48df7bf6517f2064521655958979707da12a7f7fb81d5a7c918050185a7442edefa4ab05cdd2a5c1b858021fa4e22f31501e91a2a68c0bb909e21cc4f

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/1988-59-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1988-60-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1988-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1988-62-0x000000000044A81E-mapping.dmp	family_agenttesla
behavioral1/memory/1988-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1988-64-0x0000000000400000-0x0000000000450000-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:

proponet.exe

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

proponet.exe

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

proponet.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

proponet.exe

description pid process target process

PID 1964 set thread context of 1988 1964 proponet.exe proponet.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

proponet.exe

pid process

1988 proponet.exe
1988 proponet.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

proponet.exe

pid process

1988 proponet.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

proponet.exe

description pid process

Token: SeDebugPrivilege 1988 proponet.exe

description	pid	process	target process
PID 1964 set thread context of 1988	1964	proponet.exe	proponet.exe

pid	process
1988	proponet.exe
1988	proponet.exe

pid	process
1988	proponet.exe

description	pid	process
Token: SeDebugPrivilege	1988	proponet.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

proponet.exeproponet.exe

description	pid	process	target process
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1964 wrote to memory of 1988	1964	proponet.exe	proponet.exe
PID 1988 wrote to memory of 1784	1988	proponet.exe	netsh.exe
PID 1988 wrote to memory of 1784	1988	proponet.exe	netsh.exe
PID 1988 wrote to memory of 1784	1988	proponet.exe	netsh.exe
PID 1988 wrote to memory of 1784	1988	proponet.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

proponet.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	proponet.exe

outlook_win_path 1 IoCs

Processes:

proponet.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	proponet.exe

C:\Users\Admin\AppData\Local\Temp\proponet.exe
"C:\Users\Admin\AppData\Local\Temp\proponet.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Temp\proponet.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:1988

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1784

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/1784-69-0x0000000000000000-mapping.dmp

Download
memory/1964-54-0x0000000075401000-0x0000000075403000-memory.dmp

Filesize
8KB

Download
memory/1964-55-0x0000000074B50000-0x00000000750FB000-memory.dmp

Filesize
5.7MB

Download
memory/1988-56-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-57-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-62-0x000000000044A81E-mapping.dmp

Download
memory/1988-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1988-68-0x0000000074AE0000-0x000000007508B000-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