agenttesla | b69596bfd900d26c19914eb65aab8dcbf016ed05872c821c46bd6c502d68a8f6

General

Target

aguerozx.exe
Size

980KB
MD5

b570f96cde2446a86eb29cd70a4af5a9
SHA1

cea483be9255042b7d38c369f420efbcbcab143e
SHA256

b69596bfd900d26c19914eb65aab8dcbf016ed05872c821c46bd6c502d68a8f6
SHA512

ee61916b2bc440a60f55a2d1ba6f08f8dfd9733a389fb0d3c94ad0227ce83de1b5eb6d72bfa4956ff183e45b4cbc95a7befb4cd9eb159aa97dea912f20dba997
SSDEEP

12288:uhLuyAHHEdoc2idQRWFQObDa5IXmj1iARcmblcF65UL5h:uhLuyyY2LMm6XAnRcmblctNh

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.xy4fltness.com
Port:
587
Username:
[email protected]
Password:
FXAGE@C9

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	aguerozx.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aguerozx.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aguerozx.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aguerozx.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jkceR = "C:\\Users\\Admin\\AppData\\Roaming\\jkceR\\jkceR.exe"	aguerozx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3284 set thread context of 2948	3284	aguerozx.exe	100

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3284	aguerozx.exe
3284	aguerozx.exe
2948	aguerozx.exe
2948	aguerozx.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3284	aguerozx.exe
Token: SeDebugPrivilege	2948	aguerozx.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3284 wrote to memory of 4696	3284	aguerozx.exe	99
PID 3284 wrote to memory of 4696	3284	aguerozx.exe	99
PID 3284 wrote to memory of 4696	3284	aguerozx.exe	99
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100
PID 3284 wrote to memory of 2948	3284	aguerozx.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aguerozx.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aguerozx.exe

C:\Users\Admin\AppData\Local\Temp\aguerozx.exe
"C:\Users\Admin\AppData\Local\Temp\aguerozx.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3284
- C:\Users\Admin\AppData\Local\Temp\aguerozx.exe
  "C:\Users\Admin\AppData\Local\Temp\aguerozx.exe"
  2⤵
  PID:4696
- C:\Users\Admin\AppData\Local\Temp\aguerozx.exe
  "C:\Users\Admin\AppData\Local\Temp\aguerozx.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2948-139-0x0000000000000000-mapping.dmp

Download
memory/2948-140-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2948-141-0x00000000069B0000-0x0000000006A00000-memory.dmp

Filesize
320KB

Download
memory/3284-132-0x0000000000690000-0x000000000078C000-memory.dmp

Filesize
1008KB

Download
memory/3284-133-0x00000000056A0000-0x0000000005C44000-memory.dmp

Filesize
5.6MB

Download
memory/3284-134-0x0000000005190000-0x0000000005222000-memory.dmp

Filesize
584KB

Download
memory/3284-135-0x0000000005630000-0x000000000563A000-memory.dmp

Filesize
40KB

Download
memory/3284-136-0x00000000090A0000-0x000000000913C000-memory.dmp

Filesize
624KB

Download
memory/3284-137-0x00000000091B0000-0x0000000009216000-memory.dmp

Filesize
408KB

Download
memory/4696-138-0x0000000000000000-mapping.dmp

Download

Analysis

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