agenttesla | a884c6f90ec51dc6d39304e05efe5820d5c11afcd90abeaca8969b4adb9448e7

General

Target

myomycripted.exe
Size

456KB
MD5

5e2115f3658e4b315a86eae9c149ef03
SHA1

9172826a7530c2d9432af7f7e6a340f12badec60
SHA256

a884c6f90ec51dc6d39304e05efe5820d5c11afcd90abeaca8969b4adb9448e7
SHA512

da5a1d6a6e3ce853622169ba0346d316e61c1d3216104cb6ca83793f5ff104bbfd91eb63d485c56fde438e32a00daba6e65023ed3e62953218c097c5ab5cfd26

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.wolterfan.com
Port:
587
Username:
[email protected]
Password:
@Mar123

Signatures

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

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3580-3-0x0000000000400000-0x00000000004B0000-memory.dmp	family_agenttesla
behavioral2/memory/3580-4-0x00000000009D0000-0x0000000000A22000-memory.dmp	family_agenttesla

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3580-0-0x0000000000400000-0x00000000004B0000-memory.dmp	upx
behavioral2/memory/3580-2-0x0000000000400000-0x00000000004B0000-memory.dmp	upx
behavioral2/memory/3580-3-0x0000000000400000-0x00000000004B0000-memory.dmp	upx

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe"	myomycripted.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 3580	3656	myomycripted.exe	66

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3656	myomycripted.exe
3656	myomycripted.exe
3580	myomycripted.exe
3580	myomycripted.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3656	myomycripted.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3580	myomycripted.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 3580	3656	myomycripted.exe	66
PID 3656 wrote to memory of 3580	3656	myomycripted.exe	66
PID 3656 wrote to memory of 3580	3656	myomycripted.exe	66
PID 3580 wrote to memory of 2576	3580	myomycripted.exe	74
PID 3580 wrote to memory of 2576	3580	myomycripted.exe	74
PID 3580 wrote to memory of 2576	3580	myomycripted.exe	74

C:\Users\Admin\AppData\Local\Temp\myomycripted.exe
"C:\Users\Admin\AppData\Local\Temp\myomycripted.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\myomycripted.exe
  "C:\Users\Admin\AppData\Local\Temp\myomycripted.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3580
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:2576

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3580-0-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3580-2-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3580-3-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3580-4-0x00000000009D0000-0x0000000000A22000-memory.dmp

Filesize
328KB

Download
memory/3580-5-0x0000000002312000-0x0000000002313000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing