agenttesla | 16371a4c00dcbafa63e93f577306b41caa10d8a567678a7bb3ed54ae1b4cd993

General

Target

Invoice.exe
Size

983KB
MD5

e6fccd33c9b592039b1b9e68c75c40ed
SHA1

dfa11bca779649b45aade346a9115dbae8205274
SHA256

16371a4c00dcbafa63e93f577306b41caa10d8a567678a7bb3ed54ae1b4cd993
SHA512

281d5a763fa808ae1a14d8017190a6b734fc825df92d0d23b2c200e833e59bde48f685da1c4c27d7224ac334e836d1746f3c7c3b9166de5d1bc3e3ddd483271d

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lallyautomobiles.net
Port:
587
Username:
servicekrl@lallyautomobiles.net
Password:
Welcome@2021

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/604-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/604-67-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral1/memory/604-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Invoice.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Invoice.exe
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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Invoice.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice.exe

description pid process target process

PID 540 set thread context of 604 540 Invoice.exe Invoice.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Invoice.exe

pid process

604 Invoice.exe
604 Invoice.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Invoice.exe

description pid process

Token: SeDebugPrivilege 604 Invoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Invoice.exe

pid process

604 Invoice.exe

description	pid	process	target process
PID 540 set thread context of 604	540	Invoice.exe	Invoice.exe

pid	process
604	Invoice.exe
604	Invoice.exe

description	pid	process
Token: SeDebugPrivilege	604	Invoice.exe

pid	process
604	Invoice.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Invoice.exe

description	pid	process	target process
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe
PID 540 wrote to memory of 604	540	Invoice.exe	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:540

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:604

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/540-60-0x00000000011B0000-0x00000000011B1000-memory.dmp

Filesize
4KB

Download
memory/540-62-0x0000000007260000-0x0000000007261000-memory.dmp

Filesize
4KB

Download
memory/540-63-0x0000000000430000-0x0000000000435000-memory.dmp

Filesize
20KB

Download
memory/540-64-0x000000000A200000-0x000000000A2A5000-memory.dmp

Filesize
660KB

Download
memory/540-65-0x000000000D740000-0x000000000D7A4000-memory.dmp

Filesize
400KB

Download
memory/604-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/604-67-0x000000000043762E-mapping.dmp

Download
memory/604-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/604-70-0x0000000001170000-0x0000000001171000-memory.dmp

Filesize
4KB

Download
memory/604-71-0x0000000001171000-0x0000000001172000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads