agenttesla | b6c6e4e30228a0d456f676303b0e9a71432bed674cb11a749f0a018fce862204

General

Target

LULUZHEO.exe
Size

449KB
MD5

ebeddd594f603b5bdb8423e5c66c6173
SHA1

6d2c7b328ed3052e9df7c6e78a5de31689b3139a
SHA256

42f0c2ab662dc2394eeb19056564b07ea7caf76e9b5a67ce8f44f99c99524098
SHA512

e06f71193183c2002f71727a2f7d6df59ae29a2afacf533682cc3e38c6cf198f88e6fcb8501736d3360b27f949b6bfc38f20fda1f59d5b92536a995d5eb10002

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

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/1660-56-0x0000000000490000-0x0000000000498000-memory.dmp	coreentity

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1660-60-0x0000000004CE0000-0x0000000004D2C000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1660-54-0x00000000002B0000-0x0000000000326000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1660-57-0x0000000004360000-0x00000000043B4000-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:

LULUZHEO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LULUZHEO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LULUZHEO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LULUZHEO.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

840 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

LULUZHEO.exe

pid process

1660 LULUZHEO.exe
1660 LULUZHEO.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

LULUZHEO.exe

description pid process

Token: SeDebugPrivilege 1660 LULUZHEO.exe

pid	process
840	schtasks.exe

pid	process
1660	LULUZHEO.exe
1660	LULUZHEO.exe

description	pid	process
Token: SeDebugPrivilege	1660	LULUZHEO.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

LULUZHEO.exe

description	pid	process	target process
PID 1660 wrote to memory of 840	1660	LULUZHEO.exe	schtasks.exe
PID 1660 wrote to memory of 840	1660	LULUZHEO.exe	schtasks.exe
PID 1660 wrote to memory of 840	1660	LULUZHEO.exe	schtasks.exe
PID 1660 wrote to memory of 840	1660	LULUZHEO.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

LULUZHEO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LULUZHEO.exe

outlook_win_path 1 IoCs

Processes:

LULUZHEO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LULUZHEO.exe

C:\Users\Admin\AppData\Local\Temp\LULUZHEO.exe
"C:\Users\Admin\AppData\Local\Temp\LULUZHEO.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1660

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pJlHaXQYCw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6A.tmp"
2⤵
- Creates scheduled task(s)
PID:840

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD6A.tmp
Filesize
1KB

MD5
895b8281a7fbc952eb36f88d562d7b7e

SHA1
8b810895f971b99992d6081cfadb9a2a55a03c51

SHA256
d888586b6157a6bc631b7d144462479a22b4312792d71a163ff7586a90d8658d

SHA512
b75bd205dd3ce0bf168d63b9da93a2f2b44ba2c92a4a758e36ade4d0398f4356b7c736327604fcd94cbde24b12744445f5dd90062db2036a0786c8d93c3b011c

Download Submit
memory/840-58-0x0000000000000000-mapping.dmp

Download
memory/1660-54-0x00000000002B0000-0x0000000000326000-memory.dmp

Filesize
472KB

Download
memory/1660-55-0x0000000076781000-0x0000000076783000-memory.dmp

Filesize
8KB

Download
memory/1660-56-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/1660-57-0x0000000004360000-0x00000000043B4000-memory.dmp

Filesize
336KB

Download
memory/1660-60-0x0000000004CE0000-0x0000000004D2C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads