agenttesla | 26b9dbe45e846a4d27ed41fd308be0e031fdbf9f2f742bdc95ab8625ab73f4a2

General

Target

ORTHIN RE303543 RE3542.exe
Size

592KB
MD5

ffc45247ab0320341d6e017077be0fb3
SHA1

aad7e9a69dab1c5e35df8dde1e3136d8731df981
SHA256

2ac203d2ba2fc79f4fa43ea2fff3b6e2d9a30bb8d73f6c809c50f8882913b373
SHA512

182bc8566bee01d5c55fff04e488267001a4ade177820b2db6814fd4b4b72157cf2846df80ffded3227d9f6a77f14fcdcb05edc86ac963ebd8d3e4951a952c18

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.climasenmonterrey.com.mx
Port:
587
Username:
[email protected]
Password:
donttouch@00

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/1312-57-0x00000000003A0000-0x00000000003A8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1796-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1796-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1796-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1796-65-0x000000000044A56E-mapping.dmp	family_agenttesla
behavioral1/memory/1796-67-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1796-69-0x0000000000400000-0x0000000000450000-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/1312-58-0x00000000008B0000-0x0000000000906000-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:

ORTHIN RE303543 RE3542.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ORTHIN RE303543 RE3542.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ORTHIN RE303543 RE3542.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ORTHIN RE303543 RE3542.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

description pid process target process

PID 1312 set thread context of 1796 1312 ORTHIN RE303543 RE3542.exe ORTHIN RE303543 RE3542.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

pid process

1796 ORTHIN RE303543 RE3542.exe
1796 ORTHIN RE303543 RE3542.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

description pid process

Token: SeDebugPrivilege 1796 ORTHIN RE303543 RE3542.exe

description	pid	process	target process
PID 1312 set thread context of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe

pid	process
1796	ORTHIN RE303543 RE3542.exe
1796	ORTHIN RE303543 RE3542.exe

description	pid	process
Token: SeDebugPrivilege	1796	ORTHIN RE303543 RE3542.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

description	pid	process	target process
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe
PID 1312 wrote to memory of 1796	1312	ORTHIN RE303543 RE3542.exe	ORTHIN RE303543 RE3542.exe

outlook_office_path 1 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ORTHIN RE303543 RE3542.exe

outlook_win_path 1 IoCs

Processes:

ORTHIN RE303543 RE3542.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ORTHIN RE303543 RE3542.exe

C:\Users\Admin\AppData\Local\Temp\ORTHIN RE303543 RE3542.exe
"C:\Users\Admin\AppData\Local\Temp\ORTHIN RE303543 RE3542.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1312

C:\Users\Admin\AppData\Local\Temp\ORTHIN RE303543 RE3542.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1796

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/1312-54-0x0000000000F70000-0x000000000100A000-memory.dmp

Filesize
616KB

Download
memory/1312-55-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1312-56-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1312-57-0x00000000003A0000-0x00000000003A8000-memory.dmp

Filesize
32KB

Download
memory/1312-58-0x00000000008B0000-0x0000000000906000-memory.dmp

Filesize
344KB

Download
memory/1796-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-65-0x000000000044A56E-mapping.dmp

Download
memory/1796-67-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1796-69-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads