agenttesla | 925033701a31e03124eff2b732e38b42de641ecdb17cb15a1b549b741d89e97e

General

Target

inv.exe
Size

465KB
MD5

47816f080ceb4d4f74700e16a1119c63
SHA1

26ef52d413be42a5fd038115a783c54af218ea01
SHA256

248e331a82ad9163431cb93b8f896addf5a046306f35389270ce457e042dbd94
SHA512

6f96254f53fc7ce8450ccc7fcdcd45eb087db06f5a1860498724428f405166c1702160ec771cefa32053004ac1d8ebe2af878194aafdff394e48774f94ab590d

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
don@opt0ray.com
Password:
mmm777

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/1584-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-64-0x000000000044775E-mapping.dmp	family_agenttesla
behavioral1/memory/1584-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

inv.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts inv.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	inv.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

inv.exe

description pid process target process

PID 1944 set thread context of 1584 1944 inv.exe inv.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

936 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

inv.exe

pid process

1584 inv.exe
1584 inv.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

inv.exe

description pid process

Token: SeDebugPrivilege 1584 inv.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

inv.exe

pid process

1584 inv.exe

description	pid	process	target process
PID 1944 set thread context of 1584	1944	inv.exe	inv.exe

pid	process
936	schtasks.exe

pid	process
1584	inv.exe
1584	inv.exe

description	pid	process
Token: SeDebugPrivilege	1584	inv.exe

pid	process
1584	inv.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

inv.exe

description	pid	process	target process
PID 1944 wrote to memory of 936	1944	inv.exe	schtasks.exe
PID 1944 wrote to memory of 936	1944	inv.exe	schtasks.exe
PID 1944 wrote to memory of 936	1944	inv.exe	schtasks.exe
PID 1944 wrote to memory of 936	1944	inv.exe	schtasks.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe
PID 1944 wrote to memory of 1584	1944	inv.exe	inv.exe

outlook_office_path 1 IoCs

Processes:

inv.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	inv.exe

outlook_win_path 1 IoCs

Processes:

inv.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	inv.exe

C:\Users\Admin\AppData\Local\Temp\inv.exe
"C:\Users\Admin\AppData\Local\Temp\inv.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WbetSaQtx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp95CB.tmp"
2⤵
- Creates scheduled task(s)
PID:936

C:\Users\Admin\AppData\Local\Temp\inv.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1584

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp95CB.tmp
Filesize
1KB

MD5
409874b3d7c7fff73151e0601f510ce9

SHA1
f75fa3a89393d8a230bc246156db977e13326e0e

SHA256
a0b82f1b0df12d58a123f74b030fd3b73466237feaf942a879ad35319717deb6

SHA512
bf51f4e3241f3094b6845b0ec36e71cd81610788da1845cfae3fb99c42ded173da756ddc667e5722e69a3b1d48625454a4db2e86ada9875909f9afd06127656f

Download Submit
memory/936-56-0x0000000000000000-mapping.dmp

Download
memory/1584-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-64-0x000000000044775E-mapping.dmp

Download
memory/1584-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-70-0x0000000073F20000-0x00000000744CB000-memory.dmp

Filesize
5.7MB

Download
memory/1944-55-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download
memory/1944-54-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads