agenttesla | dfddf691b73ffa451dc622937e02d6d871be6e0d9ebe17669094f042198fe9ae

General

Target

CL00020Q0332565SCL.exe
Size

1.7MB
MD5

1a14e4d83979fef847fea0458650259c
SHA1

d834b0528a464bace1a9ca27453d23d1dbdec6bd
SHA256

4a21af08ec456587b0e3fe9e1ba3c9e64e2058c09ec0e17b7ad690691bb4ca14
SHA512

d8fb9fba07e75e6a4c49d5f039ffcd1ba7981476185ea3942bb266bac005fe8576672516b442d199faae20bd215f8ade912e08242c89abaf1a3e72d2ffae0c5d

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
43210001234

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/2040-56-0x0000000000520000-0x0000000000528000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1256-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1256-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1256-64-0x000000000044CBEE-mapping.dmp	family_agenttesla
behavioral1/memory/1256-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1256-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1256-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/2040-57-0x0000000004FE0000-0x0000000005038000-memory.dmp	rezer0

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:

CL00020Q0332565SCL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CL00020Q0332565SCL.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CL00020Q0332565SCL.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CL00020Q0332565SCL.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

CL00020Q0332565SCL.exe

description pid process target process

PID 2040 set thread context of 1256 2040 CL00020Q0332565SCL.exe CL00020Q0332565SCL.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CL00020Q0332565SCL.exe

pid process

1256 CL00020Q0332565SCL.exe
1256 CL00020Q0332565SCL.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CL00020Q0332565SCL.exe

description pid process

Token: SeDebugPrivilege 1256 CL00020Q0332565SCL.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

CL00020Q0332565SCL.exe

pid process

1256 CL00020Q0332565SCL.exe

description	pid	process	target process
PID 2040 set thread context of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe

pid	process
1256	CL00020Q0332565SCL.exe
1256	CL00020Q0332565SCL.exe

description	pid	process
Token: SeDebugPrivilege	1256	CL00020Q0332565SCL.exe

pid	process
1256	CL00020Q0332565SCL.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

CL00020Q0332565SCL.exeCL00020Q0332565SCL.exe

description	pid	process	target process
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 2040 wrote to memory of 1256	2040	CL00020Q0332565SCL.exe	CL00020Q0332565SCL.exe
PID 1256 wrote to memory of 1236	1256	CL00020Q0332565SCL.exe	netsh.exe
PID 1256 wrote to memory of 1236	1256	CL00020Q0332565SCL.exe	netsh.exe
PID 1256 wrote to memory of 1236	1256	CL00020Q0332565SCL.exe	netsh.exe
PID 1256 wrote to memory of 1236	1256	CL00020Q0332565SCL.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

CL00020Q0332565SCL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CL00020Q0332565SCL.exe

outlook_win_path 1 IoCs

Processes:

CL00020Q0332565SCL.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CL00020Q0332565SCL.exe

C:\Users\Admin\AppData\Local\Temp\CL00020Q0332565SCL.exe
"C:\Users\Admin\AppData\Local\Temp\CL00020Q0332565SCL.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2040

C:\Users\Admin\AppData\Local\Temp\CL00020Q0332565SCL.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1256

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1236

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/1236-70-0x0000000000000000-mapping.dmp

Download
memory/1256-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-64-0x000000000044CBEE-mapping.dmp

Download
memory/1256-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1256-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2040-56-0x0000000000520000-0x0000000000528000-memory.dmp

Filesize
32KB

Download
memory/2040-57-0x0000000004FE0000-0x0000000005038000-memory.dmp

Filesize
352KB

Download
memory/2040-54-0x0000000000A60000-0x0000000000C1A000-memory.dmp

Filesize
1.7MB

Download
memory/2040-55-0x0000000076261000-0x0000000076263000-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