agenttesla | a4a5d42b2ea9f98c93d25d7762da6f28bd90c6f4b1ec75311b6bca3d4d4bdeef

General

Target

lbW2raPRAYI9cLe.exe
Size

530KB
MD5

1a905d2e69d78f7c9193ac7fd18fa2ec
SHA1

cd69ae40f7967f7c025974db74f6c709c6eacdc7
SHA256

a4a5d42b2ea9f98c93d25d7762da6f28bd90c6f4b1ec75311b6bca3d4d4bdeef
SHA512

0bbc0972bc5a7600e19109d50e67d6f2d1d09f7d636f6d7636508dc68fb19dc2062addb0570714a911f1142918c2c7355ac97632e3416396db0059b0c5e61243

Score

10^/10

agenttesla coreentity keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.lettu.us
Port:
587
Username:
hr@lettu.us
Password:
ilovejesus2020@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.lettu.us
Port:
587
Username:
hr@lettu.us
Password:
ilovejesus2020@

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
behavioral2/memory/676-7-0x0000000004E40000-0x0000000004E43000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2728-18-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral2/memory/2728-19-0x000000000044A9EE-mapping.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral2/memory/676-16-0x000000000AFE0000-0x000000000B031000-memory.dmp	rezer0

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

lbW2raPRAYI9cLe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\yDAORE = "C:\\Users\\Admin\\AppData\\Roaming\\yDAORE\\yDAORE.exe"	lbW2raPRAYI9cLe.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

lbW2raPRAYI9cLe.exe

description pid process target process

PID 676 set thread context of 2728 676 lbW2raPRAYI9cLe.exe lbW2raPRAYI9cLe.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

lbW2raPRAYI9cLe.exe

pid process

2728 lbW2raPRAYI9cLe.exe
2728 lbW2raPRAYI9cLe.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lbW2raPRAYI9cLe.exelbW2raPRAYI9cLe.exe

description pid process

Token: SeDebugPrivilege 676 lbW2raPRAYI9cLe.exe
Token: SeDebugPrivilege 2728 lbW2raPRAYI9cLe.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

lbW2raPRAYI9cLe.exelbW2raPRAYI9cLe.exe

pid process

676 lbW2raPRAYI9cLe.exe
676 lbW2raPRAYI9cLe.exe
2728 lbW2raPRAYI9cLe.exe

description	pid	process	target process
PID 676 set thread context of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe

pid	process
2728	lbW2raPRAYI9cLe.exe
2728	lbW2raPRAYI9cLe.exe

description	pid	process
Token: SeDebugPrivilege	676	lbW2raPRAYI9cLe.exe
Token: SeDebugPrivilege	2728	lbW2raPRAYI9cLe.exe

pid	process
676	lbW2raPRAYI9cLe.exe
676	lbW2raPRAYI9cLe.exe
2728	lbW2raPRAYI9cLe.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

lbW2raPRAYI9cLe.exelbW2raPRAYI9cLe.exe

description	pid	process	target process
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 676 wrote to memory of 2728	676	lbW2raPRAYI9cLe.exe	lbW2raPRAYI9cLe.exe
PID 2728 wrote to memory of 3824	2728	lbW2raPRAYI9cLe.exe	netsh.exe
PID 2728 wrote to memory of 3824	2728	lbW2raPRAYI9cLe.exe	netsh.exe
PID 2728 wrote to memory of 3824	2728	lbW2raPRAYI9cLe.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe
"C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:676

C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe
"{path}"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2728

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/676-0-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/676-1-0x0000000000B00000-0x0000000000B01000-memory.dmp

Filesize
4KB

Download
memory/676-3-0x0000000005470000-0x00000000054C9000-memory.dmp

Filesize
356KB

Download
memory/676-4-0x0000000007E80000-0x0000000007E81000-memory.dmp

Filesize
4KB

Download
memory/676-5-0x0000000007A60000-0x0000000007A61000-memory.dmp

Filesize
4KB

Download
memory/676-6-0x0000000007A00000-0x0000000007A01000-memory.dmp

Filesize
4KB

Download
memory/676-7-0x0000000004E40000-0x0000000004E43000-memory.dmp

Filesize
12KB

Download
memory/676-16-0x000000000AFE0000-0x000000000B031000-memory.dmp

Filesize
324KB

Download
memory/676-17-0x000000000B0E0000-0x000000000B0E1000-memory.dmp

Filesize
4KB

Download
memory/2728-18-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2728-19-0x000000000044A9EE-mapping.dmp

Download
memory/2728-20-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-25-0x0000000005800000-0x0000000005801000-memory.dmp

Filesize
4KB

Download
memory/2728-26-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/3824-27-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads