agenttesla | ad83f4a4563b94420182654f956f45c6555d88c4fb0392dbe73df0eeafbdfc17

General

Target

ad83f4a4.exe
Size

1.1MB
MD5

c91f24fcf484e59d3ab03e707144459a
SHA1

9b21351158fc241ecc52a51beca027c1162694d6
SHA256

ad83f4a4563b94420182654f956f45c6555d88c4fb0392dbe73df0eeafbdfc17
SHA512

14cae63fa00235b8300e3fbf9dd71ba45692e5de692e2ab418f647a43de81de6272491b31ad7af5d4e5ad9236749c800e3eb83971d77491047eda428b0a000b7

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
sales@xxltrucck.com
Password:
zxcvbnm12345

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1228-62-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-65-0x000000000043759E-mapping.dmp	family_agenttesla
behavioral1/memory/1228-66-0x0000000000400000-0x000000000043C000-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:

ad83f4a4.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ad83f4a4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ad83f4a4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ad83f4a4.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ad83f4a4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\nwlrFL = "C:\\Users\\Admin\\AppData\\Roaming\\nwlrFL\\nwlrFL.exe"	ad83f4a4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ad83f4a4.exe

description pid process target process

PID 732 set thread context of 1228 732 ad83f4a4.exe ad83f4a4.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ad83f4a4.exe

pid process

1228 ad83f4a4.exe
1228 ad83f4a4.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ad83f4a4.exe

description pid process

Token: SeDebugPrivilege 1228 ad83f4a4.exe

description	pid	process	target process
PID 732 set thread context of 1228	732	ad83f4a4.exe	ad83f4a4.exe

pid	process
1228	ad83f4a4.exe
1228	ad83f4a4.exe

description	pid	process
Token: SeDebugPrivilege	1228	ad83f4a4.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ad83f4a4.exe

description	pid	process	target process
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe
PID 732 wrote to memory of 1228	732	ad83f4a4.exe	ad83f4a4.exe

outlook_office_path 1 IoCs

Processes:

ad83f4a4.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ad83f4a4.exe

outlook_win_path 1 IoCs

Processes:

ad83f4a4.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ad83f4a4.exe

C:\Users\Admin\AppData\Local\Temp\ad83f4a4.exe
"C:\Users\Admin\AppData\Local\Temp\ad83f4a4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:732

C:\Users\Admin\AppData\Local\Temp\ad83f4a4.exe
"C:\Users\Admin\AppData\Local\Temp\ad83f4a4.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1228

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/732-54-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/732-56-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/732-57-0x0000000004A30000-0x0000000004A31000-memory.dmp

Filesize
4KB

Download
memory/732-58-0x0000000000380000-0x0000000000385000-memory.dmp

Filesize
20KB

Download
memory/732-59-0x00000000056E0000-0x00000000057BB000-memory.dmp

Filesize
876KB

Download
memory/1228-60-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-65-0x000000000043759E-mapping.dmp

Download
memory/1228-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1228-68-0x00000000049D0000-0x00000000049D1000-memory.dmp

Filesize
4KB

Download
memory/1228-69-0x00000000049D1000-0x00000000049D2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads