agenttesla | 0ac910bb0c406432b2c9d22dc2b6038aa44f282ec4244d5ae47a7b35820dbedb

General

Target

PO-055MAY.exe
Size

651KB
MD5

4764f309bdf491747a14f235ffb64dcb
SHA1

41d7678b2da67f53fd00991cfa386cc84de0b1ce
SHA256

d5819b520b3e566b31f7aaf830c521264b8b3bf66b7d85c729537d138e042b81
SHA512

c3ad68790d04b263379ee3702bcc85320367cc604abc70755bf7cdc91e58c1831ab5e89b043bfefcf0e1584c7e47baf6d5ca0f4acda98378bb27c0b128135795

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
webmail.basefirms.name
Port:
587
Username:
[email protected]
Password:
Michael126411790

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/1976-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1976-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1976-64-0x000000000044A9AE-mapping.dmp	family_agenttesla
behavioral1/memory/1976-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1976-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1976-68-0x0000000000400000-0x0000000000450000-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/1964-57-0x0000000001020000-0x0000000001076000-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:

PO-055MAY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-055MAY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-055MAY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-055MAY.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO-055MAY.exe

description pid process target process

PID 1964 set thread context of 1976 1964 PO-055MAY.exe PO-055MAY.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

PO-055MAY.exePO-055MAY.exe

pid process

1964 PO-055MAY.exe
1964 PO-055MAY.exe
1964 PO-055MAY.exe
1976 PO-055MAY.exe
1976 PO-055MAY.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO-055MAY.exePO-055MAY.exe

description pid process

Token: SeDebugPrivilege 1964 PO-055MAY.exe
Token: SeDebugPrivilege 1976 PO-055MAY.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO-055MAY.exe

pid process

1976 PO-055MAY.exe

description	pid	process	target process
PID 1964 set thread context of 1976	1964	PO-055MAY.exe	PO-055MAY.exe

pid	process
1964	PO-055MAY.exe
1964	PO-055MAY.exe
1964	PO-055MAY.exe
1976	PO-055MAY.exe
1976	PO-055MAY.exe

description	pid	process
Token: SeDebugPrivilege	1964	PO-055MAY.exe
Token: SeDebugPrivilege	1976	PO-055MAY.exe

pid	process
1976	PO-055MAY.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

PO-055MAY.exe

description	pid	process	target process
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe
PID 1964 wrote to memory of 1976	1964	PO-055MAY.exe	PO-055MAY.exe

outlook_office_path 1 IoCs

Processes:

PO-055MAY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-055MAY.exe

outlook_win_path 1 IoCs

Processes:

PO-055MAY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-055MAY.exe

C:\Users\Admin\AppData\Local\Temp\PO-055MAY.exe
"C:\Users\Admin\AppData\Local\Temp\PO-055MAY.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Temp\PO-055MAY.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1976

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1964-54-0x0000000001100000-0x00000000011AA000-memory.dmp

Filesize
680KB

Download
memory/1964-55-0x0000000000390000-0x00000000003F0000-memory.dmp

Filesize
384KB

Download
memory/1964-56-0x00000000004A0000-0x00000000004A8000-memory.dmp

Filesize
32KB

Download
memory/1964-57-0x0000000001020000-0x0000000001076000-memory.dmp

Filesize
344KB

Download
memory/1976-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-64-0x000000000044A9AE-mapping.dmp

Download
memory/1976-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-69-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads