agenttesla | 4f85e9a778ee5bcbb0b11144a0d507eea90fc38f60c4b9b1972bf46287d2076f

General

Target

0wqm6DEuBEtkW6x.exe
Size

470KB
MD5

8139b50c41d69f9154d6823b3451c113
SHA1

9268206861db25c60e2437e1ef8c7b8455c3e09c
SHA256

bf0d59028ae38ed30ac853eef4e6ceb21777730a1272587fd4d000e6b8b97a8e
SHA512

126771597711ad3fdff6a86f4f1c6f49e11327d15f19a018f12ffe7b5c1a8d88da06202170b26a1ded0e752825e0ff44ff966c37eae9857740fb0b02f390d2d1

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yueqnugroup.com
Port:
587
Username:
[email protected]
Password:
zLE!VGv8

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/892-56-0x0000000000380000-0x0000000000388000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/608-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/608-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/608-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/608-64-0x000000000044CDDE-mapping.dmp	family_agenttesla
behavioral1/memory/608-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/608-61-0x0000000000400000-0x0000000000452000-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/892-57-0x0000000000EB0000-0x0000000000F0A000-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:

0wqm6DEuBEtkW6x.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	0wqm6DEuBEtkW6x.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0wqm6DEuBEtkW6x.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0wqm6DEuBEtkW6x.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0wqm6DEuBEtkW6x.exe

description pid process target process

PID 892 set thread context of 608 892 0wqm6DEuBEtkW6x.exe 0wqm6DEuBEtkW6x.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0wqm6DEuBEtkW6x.exe

pid process

608 0wqm6DEuBEtkW6x.exe
608 0wqm6DEuBEtkW6x.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

0wqm6DEuBEtkW6x.exe

description pid process

Token: SeDebugPrivilege 608 0wqm6DEuBEtkW6x.exe

description	pid	process	target process
PID 892 set thread context of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe

pid	process
608	0wqm6DEuBEtkW6x.exe
608	0wqm6DEuBEtkW6x.exe

description	pid	process
Token: SeDebugPrivilege	608	0wqm6DEuBEtkW6x.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

0wqm6DEuBEtkW6x.exe0wqm6DEuBEtkW6x.exe

description	pid	process	target process
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 892 wrote to memory of 608	892	0wqm6DEuBEtkW6x.exe	0wqm6DEuBEtkW6x.exe
PID 608 wrote to memory of 860	608	0wqm6DEuBEtkW6x.exe	netsh.exe
PID 608 wrote to memory of 860	608	0wqm6DEuBEtkW6x.exe	netsh.exe
PID 608 wrote to memory of 860	608	0wqm6DEuBEtkW6x.exe	netsh.exe
PID 608 wrote to memory of 860	608	0wqm6DEuBEtkW6x.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

0wqm6DEuBEtkW6x.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	0wqm6DEuBEtkW6x.exe

outlook_win_path 1 IoCs

Processes:

0wqm6DEuBEtkW6x.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	0wqm6DEuBEtkW6x.exe

C:\Users\Admin\AppData\Local\Temp\0wqm6DEuBEtkW6x.exe
"C:\Users\Admin\AppData\Local\Temp\0wqm6DEuBEtkW6x.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:892

C:\Users\Admin\AppData\Local\Temp\0wqm6DEuBEtkW6x.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:608

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:860

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/608-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-64-0x000000000044CDDE-mapping.dmp

Download
memory/608-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/608-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/860-70-0x0000000000000000-mapping.dmp

Download
memory/892-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/892-56-0x0000000000380000-0x0000000000388000-memory.dmp

Filesize
32KB

Download
memory/892-57-0x0000000000EB0000-0x0000000000F0A000-memory.dmp

Filesize
360KB

Download
memory/892-54-0x0000000001230000-0x00000000012AC000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads