agenttesla | 5286abbdb535d1ef9258f1003f8755072d700ba9874d29d4b07954aeca3d7f56

General

Target

HUJUoHNDvfZTiEM.exe
Size

490KB
MD5

f93a5756dce9c41e690029529f0dd25c
SHA1

ccb444a4628fd2035aa38ff8a50727f4c0a67ffb
SHA256

7e393bcd518415ad70e7a6924c8798391400554fce9c2a639a891dcda4f8e230
SHA512

7ad1ca297782ce423311d11cb1f2932a7edb64a0364be54558e881073d3095a0b6993dcaabb01e34e18a89a2a134e3887dfac6beeb880f6463520d65b635e42c

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.lettu.us
Port:
587
Username:
[email protected]
Password:
western2020@

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1788-137-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

HUJUoHNDvfZTiEM.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	HUJUoHNDvfZTiEM.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HUJUoHNDvfZTiEM.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HUJUoHNDvfZTiEM.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{C72B780F-D889-42D9-9C8A-AA9AA9D40EE2}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{8D084154-FA7E-4E00-B60E-59334DC52AA6}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HUJUoHNDvfZTiEM.exe

description pid process target process

PID 4120 set thread context of 1788 4120 HUJUoHNDvfZTiEM.exe HUJUoHNDvfZTiEM.exe

description	pid	process	target process
PID 4120 set thread context of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

HUJUoHNDvfZTiEM.exe

pid process

1788 HUJUoHNDvfZTiEM.exe
1788 HUJUoHNDvfZTiEM.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

HUJUoHNDvfZTiEM.exe

description pid process

Token: SeDebugPrivilege 1788 HUJUoHNDvfZTiEM.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

HUJUoHNDvfZTiEM.exe

pid process

1788 HUJUoHNDvfZTiEM.exe

pid	process
1788	HUJUoHNDvfZTiEM.exe
1788	HUJUoHNDvfZTiEM.exe

description	pid	process
Token: SeDebugPrivilege	1788	HUJUoHNDvfZTiEM.exe

pid	process
1788	HUJUoHNDvfZTiEM.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

HUJUoHNDvfZTiEM.exe

description	pid	process	target process
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe
PID 4120 wrote to memory of 1788	4120	HUJUoHNDvfZTiEM.exe	HUJUoHNDvfZTiEM.exe

outlook_office_path 1 IoCs

Processes:

HUJUoHNDvfZTiEM.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	HUJUoHNDvfZTiEM.exe

outlook_win_path 1 IoCs

Processes:

HUJUoHNDvfZTiEM.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	HUJUoHNDvfZTiEM.exe

C:\Users\Admin\AppData\Local\Temp\HUJUoHNDvfZTiEM.exe
"C:\Users\Admin\AppData\Local\Temp\HUJUoHNDvfZTiEM.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4120

C:\Users\Admin\AppData\Local\Temp\HUJUoHNDvfZTiEM.exe
"C:\Users\Admin\AppData\Local\Temp\HUJUoHNDvfZTiEM.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1788

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:5100

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

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

memory/1788-136-0x0000000000000000-mapping.dmp

Download
memory/1788-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1788-138-0x0000000006620000-0x0000000006686000-memory.dmp

Filesize
408KB

Download
memory/1788-139-0x0000000006B40000-0x0000000006B90000-memory.dmp

Filesize
320KB

Download
memory/4120-130-0x00000000005B0000-0x0000000000630000-memory.dmp

Filesize
512KB

Download
memory/4120-131-0x0000000004F50000-0x0000000004FEC000-memory.dmp

Filesize
624KB

Download
memory/4120-132-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/4120-133-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/4120-134-0x0000000005070000-0x000000000507A000-memory.dmp

Filesize
40KB

Download
memory/4120-135-0x00000000052D0000-0x0000000005326000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads